diff --git a/app/controllers/search_controller.rb b/app/controllers/search_controller.rb
index 666d3d0f..0c67410b 100644
--- a/app/controllers/search_controller.rb
+++ b/app/controllers/search_controller.rb
@@ -7,8 +7,8 @@ def search
 
     return if @query.blank?
 
-    @users = User.accessible_by(current_ability).where(
-      'firstname ILIKE :search OR lastname ILIKE :search OR email ILIKE :search OR room ILIKE :search',
+    @users = User.accessible_by(current_ability).left_joins(:room).where(
+      'firstname ILIKE :search OR lastname ILIKE :search OR email ILIKE :search OR rooms.number ILIKE :search',
       search: "%#{User.sanitize_sql_like @query}%"
     )
     @machines = Machine.accessible_by(current_ability).where(
diff --git a/app/controllers/sessions_controller.rb b/app/controllers/sessions_controller.rb
index d182869c..7d0eaa80 100644
--- a/app/controllers/sessions_controller.rb
+++ b/app/controllers/sessions_controller.rb
@@ -16,7 +16,6 @@ def create_developer
       u.firstname = auth_hash[:first_name]
       u.lastname = auth_hash[:last_name]
       u.username = auth_hash[:username]
-      u.room = auth_hash[:room]
     end
     user.groups = auth_hash[:groups].split(',')
     log_in user
diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 3bc0d4cf..0aa0d4ca 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -63,6 +63,6 @@ def destroy
   private
 
   def user_params
-    params.require(:user).permit(:firstname, :lastname, :email, :room, :username)
+    params.require(:user).permit(:firstname, :lastname, :email, :username, :room_number)
   end
 end
diff --git a/app/jobs/sync_room_to_sso_job.rb b/app/jobs/sync_room_to_sso_job.rb
new file mode 100644
index 00000000..3d504a95
--- /dev/null
+++ b/app/jobs/sync_room_to_sso_job.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class SyncRoomToSsoJob < ApplicationJob
+  queue_as :default
+
+  retry_on Net::OpenTimeout, Net::ReadTimeout, wait: 30.seconds, attempts: 5
+
+  def perform(user_id)
+    user = User.find_by(id: user_id)
+    return if user.nil?
+
+    SsoMetadataService.new.sync_room(user)
+  end
+end
diff --git a/app/models/room.rb b/app/models/room.rb
new file mode 100644
index 00000000..a2ec374d
--- /dev/null
+++ b/app/models/room.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class Room < ApplicationRecord
+  belongs_to :user, optional: true, inverse_of: :room
+
+  validates :number, presence: true, uniqueness: true, length: { maximum: 6 },
+                     format: { with: /\A[A-Z0-9]+\z/, message: 'must be uppercase alphanumeric' }
+  # A room group represents the natural grouping of rooms. It can be the room number itself or a shared identifier
+  validates :group, presence: true, length: { maximum: 6 },
+                    format: { with: /\A[A-Z0-9]+\z/, message: 'must be uppercase alphanumeric' }
+  validates :building, presence: true, inclusion: { in: ('A'..'F').to_a }
+  validates :floor, presence: true, inclusion: { in: 0..3 }
+  validates :user_id, uniqueness: true, allow_nil: true
+
+  after_commit :enqueue_room_sync_to_sso, on: [:create, :update], if: :saved_change_to_user_id?
+
+  # Returns rooms available for assignment: unoccupied rooms + the room already assigned to the given user
+  scope :available_for, ->(user) { where(user_id: [nil, user.id]) }
+
+  private
+
+  def enqueue_room_sync_to_sso
+    SyncRoomToSsoJob.perform_later(user_id) if user_id.present?
+    SyncRoomToSsoJob.perform_later(user_id_before_last_save) if user_id_before_last_save.present?
+  end
+end
diff --git a/app/models/user.rb b/app/models/user.rb
index 483b3205..cd240a16 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 class User < ApplicationRecord
+  has_one :room, dependent: :nullify, inverse_of: :user
   has_many :machines, dependent: :destroy
   has_many :free_accesses, dependent: :destroy
   has_many :free_accesses_by_date, lambda {
@@ -15,7 +16,6 @@ class User < ApplicationRecord
   }, through: :sales_as_client, dependent: :destroy, class_name: 'Subscription', source: :subscription
 
   normalizes :email, with: ->(email) { email.strip.downcase }
-  normalizes :room, with: ->(room) { room&.downcase&.upcase_first }
 
   # Since the Radius MD4 hash is broken anyway (see: https://kanidm.github.io/kanidm/master/integrations/radius.html#cleartext-credential-storage)
   # we choose to store the wifi_password encrypted using Rails built-in encryption.
@@ -27,14 +27,14 @@ class User < ApplicationRecord
   validates :lastname, presence: true, allow_blank: false
   VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-]+(\.[a-z\d\-]+)*\.[a-z]+\z/
   validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: true
-  # TODO: Make room regex case-sensitive once we fix support for 'DF1' with uppercase
-  VALID_ROOM_REGEX = /\A([A-F][0-3][0-9]{2}[a-b]?|DF[1-4])\z/i
-  validates :room, format: { with: VALID_ROOM_REGEX }, uniqueness: true, allow_nil: true
   validates :wifi_password, presence: true, allow_blank: false
   validates :username, presence: true, uniqueness: true, allow_blank: false
+  validate :room_number_must_exist
 
   before_validation :ensure_has_wifi_password
 
+  before_save :assign_room_from_number
+
   # @return [Array<String>]
   attr_accessor :groups
 
@@ -48,7 +48,7 @@ def display_name
   end
 
   def display_address
-    address = room.present? ? "Appartement #{room}\n" : ''
+    address = room.present? ? "Appartement #{room.number}\n" : ''
     "#{address}Résidence Léonard de Vinci\nAvenue Paul Langevin\n59650 Villeneuve-d'Ascq"
   end
 
@@ -97,6 +97,14 @@ def update_from_sso(firstname:, lastname:, email:, username:)
     update(firstname: firstname, lastname: lastname, email: email, username: username)
   end
 
+  def room_number
+    @room_number || room&.number
+  end
+
+  def room_number=(value)
+    @room_number = value&.upcase&.presence
+  end
+
   def admin?
     return false if groups.nil?
 
@@ -105,6 +113,17 @@ def admin?
 
   private
 
+  def room_number_must_exist
+    return if @room_number.blank?
+    return if Room.exists?(number: @room_number)
+
+    errors.add(:room_number, 'does not exist')
+  end
+
+  def assign_room_from_number
+    self.room = @room_number.blank? ? nil : Room.find_by(number: @room_number)
+  end
+
   def subscription_expired?
     subscription_expiration.nil? || (subscription_expiration < Time.current)
   end
diff --git a/app/services/sso_metadata_service.rb b/app/services/sso_metadata_service.rb
new file mode 100644
index 00000000..1d5bad53
--- /dev/null
+++ b/app/services/sso_metadata_service.rb
@@ -0,0 +1,101 @@
+# frozen_string_literal: true
+
+class SsoMetadataService
+  SSO_BASE_URL = 'https://sso.rezoleo.fr'
+  HTTP_OPEN_TIMEOUT_SECONDS = 5
+  HTTP_READ_TIMEOUT_SECONDS = 10
+
+  # @param user [User]
+  def sync_room(user)
+    return if user.oidc_id.blank?
+
+    room_number = user.room&.number
+
+    unless production?
+      Rails.logger.info("[SSO] Dry-run: would sync room '#{room_number}' for user #{user.oidc_id}")
+      return
+    end
+
+    push_room_metadata(user, room_number)
+  end
+
+  private
+
+  def production?
+    Rails.env.production?
+  end
+
+  def push_room_metadata(user, room_number)
+    if room_number.present?
+      post_room_metadata(user, room_number)
+    else
+      delete_room_metadata(user)
+    end
+  end
+
+  # Metadata values in Zitadel must be base64-encoded.
+  # See https://zitadel.com/docs/reference/api/user/zitadel.user.v2.UserService.SetUserMetadata
+  def post_room_metadata(user, room_number)
+    uri = URI("#{SSO_BASE_URL}/v2/users/#{user.oidc_id}/metadata")
+    body = { metadata: [{ key: 'room', value: Base64.strict_encode64(room_number) }] }
+
+    req = build_request(Net::HTTP::Post, uri, body:)
+    res = execute_request(user:, req:)
+
+    return if res.is_a?(Net::HTTPSuccess)
+
+    log_failure(user, uri, req, res)
+  end
+
+  def delete_room_metadata(user)
+    uri = URI("#{SSO_BASE_URL}/v2/users/#{user.oidc_id}/metadata")
+    uri.query = URI.encode_www_form([['keys', 'room']])
+
+    req = build_request(Net::HTTP::Delete, uri)
+    res = execute_request(user:, req:)
+
+    return if res.is_a?(Net::HTTPSuccess) || res.is_a?(Net::HTTPNotFound) # NotFound => No existing metadata to delete
+
+    log_failure(user, uri, req, res)
+  end
+
+  def build_request(http_method, uri, body: nil)
+    req = http_method.new(uri)
+    req['Authorization'] = "Bearer #{access_token}"
+
+    return req if body.nil?
+
+    req.content_type = 'application/json'
+    req.body = body.to_json
+    req
+  end
+
+  def execute_request(user:, req:)
+    Net::HTTP.start(
+      req.uri.hostname,
+      req.uri.port,
+      use_ssl: true,
+      open_timeout: HTTP_OPEN_TIMEOUT_SECONDS,
+      read_timeout: HTTP_READ_TIMEOUT_SECONDS
+    ) do |http|
+      http.request(req)
+    end
+  rescue Net::OpenTimeout, Net::ReadTimeout => e
+    Rails.logger.error("[SSO] Timeout for user #{user.oidc_id}: #{e.message}")
+    raise
+  rescue StandardError => e
+    Rails.logger.error("[SSO] Error syncing room for user #{user.oidc_id}: #{e.message}")
+    raise
+  end
+
+  def log_failure(user, uri, req, res)
+    Rails.logger.error(
+      "[SSO] Failed to sync room for user #{user.oidc_id} " \
+      "(#{req.method} #{uri}): #{res.code} #{res.body}"
+    )
+  end
+
+  def access_token
+    Rails.application.credentials.sso_lea5_pat!
+  end
+end
diff --git a/app/views/api/users/_user.json.jbuilder b/app/views/api/users/_user.json.jbuilder
index 2350bf28..c806add1 100644
--- a/app/views/api/users/_user.json.jbuilder
+++ b/app/views/api/users/_user.json.jbuilder
@@ -2,6 +2,7 @@
 
 # locals: (json:, user:)
 
-json.extract! user, :id, :firstname, :lastname, :username, :email, :room, :created_at, :updated_at
+json.extract! user, :id, :firstname, :lastname, :username, :email, :created_at, :updated_at
+json.room user.room&.number
 json.url api_user_url(user)
 json.internet_expiration user.internet_expiration
diff --git a/app/views/search/_user.html.erb b/app/views/search/_user.html.erb
index 435df536..7975b70a 100644
--- a/app/views/search/_user.html.erb
+++ b/app/views/search/_user.html.erb
@@ -3,7 +3,7 @@
 <li>
   <%= link_to user, class: "user" do %>
   <span><%= user.firstname %> <%= user.lastname %></span>
-  <span><%= user.room %></span>
+  <span><%= user.room&.number %></span>
   <% if user.internet_expiration.nil? || user.internet_expiration < Time.current %>
     <span style="color:var(--red-900)">No Internet</span>
   <% else %>
diff --git a/app/views/users/_form.html.erb b/app/views/users/_form.html.erb
index a11627b5..b73643a1 100644
--- a/app/views/users/_form.html.erb
+++ b/app/views/users/_form.html.erb
@@ -20,8 +20,13 @@
   </div>
   <div>
     <%= f.label :room %>
-    <%= f.text_field :room, placeholder: 'A123b or DF1', minlength: 3, maxlength: 5,
-                     pattern: '([A-Fa-f][0-3][0-9]{2}[a-b]?|[Dd][Ff][1-4])' %>
+    <%= f.text_field :room_number, list: 'rooms-datalist', autocomplete: 'off',
+                            placeholder: 'ex : A105A', value: f.object.room&.number %>
+    <datalist id="rooms-datalist">
+      <% Room.available_for(f.object).order(:number).each do |room| %>
+        <option value="<%= room.number %>"></option>
+      <% end %>
+    </datalist>
   </div>
   <div>
     <%= f.submit yield(:button_text) %>
diff --git a/app/views/users/_user.html.erb b/app/views/users/_user.html.erb
index 435df536..7975b70a 100644
--- a/app/views/users/_user.html.erb
+++ b/app/views/users/_user.html.erb
@@ -3,7 +3,7 @@
 <li>
   <%= link_to user, class: "user" do %>
   <span><%= user.firstname %> <%= user.lastname %></span>
-  <span><%= user.room %></span>
+  <span><%= user.room&.number %></span>
   <% if user.internet_expiration.nil? || user.internet_expiration < Time.current %>
     <span style="color:var(--red-900)">No Internet</span>
   <% else %>
diff --git a/app/views/users/show.html.erb b/app/views/users/show.html.erb
index e947ce04..1834b90a 100644
--- a/app/views/users/show.html.erb
+++ b/app/views/users/show.html.erb
@@ -34,7 +34,7 @@
         <% else %>
           <span>No Internet</span>
         <% end %>
-        <span><%= @user.room %></span>
+        <span><%= @user.room&.number %></span>
         <span><%= pluralize(@machines.size, "machine") %></span>
         <% if current_user == @user %>
           <div class="card-content-user-details" data-controller="user" data-user-password-value="<%= @user.wifi_password %>">
diff --git a/db/migrate/20260307123053_create_rooms.rb b/db/migrate/20260307123053_create_rooms.rb
new file mode 100644
index 00000000..851d7ce0
--- /dev/null
+++ b/db/migrate/20260307123053_create_rooms.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+class CreateRooms < ActiveRecord::Migration[7.2]
+  def change
+    create_table :rooms do |t|
+      t.string :number, limit: 6, null: false
+      t.string :group, limit: 6, null: false
+      t.string :building, limit: 1, null: false
+      t.integer :floor, null: false
+      t.references :user, foreign_key: true, index: { unique: true, where: 'user_id IS NOT NULL' }
+
+      t.timestamps
+    end
+    add_index :rooms, :number, unique: true
+    add_index :rooms, :group
+    add_index :rooms, [:building, :floor]
+
+    # Migrate existing user.room data to rooms.user_id
+    reversible do |dir|
+      dir.up do
+        execute <<~SQL.squish
+          UPDATE rooms SET user_id = users.id FROM users WHERE users.room = rooms.number
+        SQL
+      end
+    end
+
+    # Remove the old room column from users
+    remove_index :users, :room, name: 'index_users_on_room'
+    remove_column :users, :room, :string
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 8a776707..5254b170 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2025_12_14_175208) do
+ActiveRecord::Schema[7.2].define(version: 2026_03_07_123053) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -85,10 +85,10 @@
   end
 
   create_table "invoices", force: :cascade do |t|
-    t.bigint "number", null: false
     t.jsonb "generation_json", null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.bigint "number", null: false
     t.index ["number"], name: "index_invoices_on_number", unique: true
   end
 
@@ -142,6 +142,18 @@
     t.index ["subscription_offer_id"], name: "index_refunds_subscription_offers_on_subscription_offer_id"
   end
 
+  create_table "rooms", force: :cascade do |t|
+    t.string "number", limit: 6, null: false
+    t.string "group", limit: 6, null: false
+    t.string "building", limit: 1, null: false
+    t.integer "floor", null: false
+    t.bigint "user_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["number"], name: "index_rooms_on_number", unique: true
+    t.index ["user_id"], name: "index_rooms_on_user_id", unique: true, where: "(user_id IS NOT NULL)"
+  end
+
   create_table "sales", force: :cascade do |t|
     t.bigint "seller_id"
     t.bigint "client_id", null: false
@@ -195,7 +207,6 @@
     t.string "firstname", null: false
     t.string "lastname", null: false
     t.string "email", null: false
-    t.string "room"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.string "oidc_id"
@@ -203,7 +214,6 @@
     t.string "username", null: false
     t.index ["email"], name: "index_users_on_email", unique: true
     t.index ["oidc_id"], name: "index_users_on_oidc_id", unique: true
-    t.index ["room"], name: "index_users_on_room", unique: true, where: "(room IS NOT NULL)"
     t.index ["username"], name: "index_users_on_username", unique: true
     t.index ["wifi_password"], name: "index_users_on_wifi_password"
   end
@@ -223,6 +233,7 @@
   add_foreign_key "refunds", "users", column: "refunder_id"
   add_foreign_key "refunds_subscription_offers", "refunds"
   add_foreign_key "refunds_subscription_offers", "subscription_offers"
+  add_foreign_key "rooms", "users"
   add_foreign_key "sales", "invoices"
   add_foreign_key "sales", "payment_methods"
   add_foreign_key "sales", "users", column: "client_id"
diff --git a/db/seeds.rb b/db/seeds.rb
index ba9afb7f..473ac45b 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -11,11 +11,21 @@
 #   end
 
 require_relative 'seeds/ips'
+require_relative 'seeds/rooms'
 
-User.create([{ firstname: 'Paul', lastname: 'Marcel', room: 'A123', email: 'paul.marcel@gmail.com',
-               username: 'paulmarcel' },
-             { firstname: 'Gérard', lastname: 'Dupont', room: 'd145', email: 'xXgerardDUPONTXx@gmail.com',
-               username: 'gerarddupont' }])
+paul = User.find_or_initialize_by(email: 'paul.marcel@gmail.com')
+paul.update!(firstname: 'Paul', lastname: 'Marcel', username: 'paulmarcel')
+Room.find_by(number: 'A109A')&.update!(user: paul)
 
-User.first.machines.create({ mac: 'AA:AA:AA:AA:AA:AA', name: 'Powerful-Battery', ip: Ip.first })
-User.first.machines.create({ mac: 'AA:AA:AA:AA:AA:AB', name: 'Powerful-Battery-2', ip: Ip.last })
+gerard = User.find_or_initialize_by(email: 'xXgerardDUPONTXx@gmail.com')
+gerard.update!(firstname: 'Gérard', lastname: 'Dupont', username: 'gerarddupont')
+Room.find_by(number: 'A201')&.update!(user: gerard)
+
+paul.machines.find_or_create_by!(mac: 'AA:AA:AA:AA:AA:AA') do |machine|
+  machine.name = 'Powerful-Battery'
+  machine.ip = Ip.first
+end
+paul.machines.find_or_create_by!(mac: 'AA:AA:AA:AA:AA:AB') do |machine|
+  machine.name = 'Powerful-Battery-2'
+  machine.ip = Ip.last
+end
diff --git a/db/seeds/rooms.rb b/db/seeds/rooms.rb
new file mode 100644
index 00000000..47c029dc
--- /dev/null
+++ b/db/seeds/rooms.rb
@@ -0,0 +1,667 @@
+# frozen_string_literal: true
+
+# Seed rooms for the residence.
+# Rooms follow the pattern: Building (A-F) + Floor (0-3) + Number + optional letter (for shared apartments)
+# Special rooms: DF1-DF4, CLAP, ALUMNI, AGR1, AGR2
+
+# rubocop: disable Metrics/CollectionLiteralLength
+rooms = [
+  # Building A - Floor 0
+  { number: 'A001', group: 'A001', building: 'A', floor: 0 },
+  { number: 'A002', group: 'A002', building: 'A', floor: 0 },
+  { number: 'A003', group: 'A003', building: 'A', floor: 0 },
+  { number: 'A004A', group: 'A004', building: 'A', floor: 0 },
+  { number: 'A004B', group: 'A004', building: 'A', floor: 0 },
+  { number: 'A005', group: 'A005', building: 'A', floor: 0 },
+  { number: 'A006', group: 'A006', building: 'A', floor: 0 },
+  { number: 'A007', group: 'A007', building: 'A', floor: 0 },
+  { number: 'A008A', group: 'A008', building: 'A', floor: 0 },
+  { number: 'A008B', group: 'A008', building: 'A', floor: 0 },
+  { number: 'A009A', group: 'A009', building: 'A', floor: 0 },
+  { number: 'A009B', group: 'A009', building: 'A', floor: 0 },
+  { number: 'A010A', group: 'A010', building: 'A', floor: 0 },
+  { number: 'A010B', group: 'A010', building: 'A', floor: 0 },
+
+  # Building A - Floor 1
+  { number: 'A101', group: 'A101', building: 'A', floor: 1 },
+  { number: 'A102', group: 'A102', building: 'A', floor: 1 },
+  { number: 'A103', group: 'A103', building: 'A', floor: 1 },
+  { number: 'A104A', group: 'A104', building: 'A', floor: 1 },
+  { number: 'A104B', group: 'A104', building: 'A', floor: 1 },
+  { number: 'A105A', group: 'A105', building: 'A', floor: 1 },
+  { number: 'A105B', group: 'A105', building: 'A', floor: 1 },
+  { number: 'A106', group: 'A106', building: 'A', floor: 1 },
+  { number: 'A107', group: 'A107', building: 'A', floor: 1 },
+  { number: 'A108A', group: 'A108', building: 'A', floor: 1 },
+  { number: 'A108B', group: 'A108', building: 'A', floor: 1 },
+  { number: 'A109A', group: 'A109', building: 'A', floor: 1 },
+  { number: 'A109B', group: 'A109', building: 'A', floor: 1 },
+  { number: 'A110A', group: 'A110', building: 'A', floor: 1 },
+  { number: 'A110B', group: 'A110', building: 'A', floor: 1 },
+  { number: 'A111', group: 'A111', building: 'A', floor: 1 },
+  { number: 'A112', group: 'A112', building: 'A', floor: 1 },
+  { number: 'A113', group: 'A113', building: 'A', floor: 1 },
+  # Room A114 - A118 are missing. Do they exist? Is A119 a typo?
+  { number: 'A119', group: 'A119', building: 'A', floor: 1 },
+
+  # Building A - Floor 2
+  { number: 'A201', group: 'A201', building: 'A', floor: 2 },
+  { number: 'A202', group: 'A202', building: 'A', floor: 2 },
+  { number: 'A203', group: 'A203', building: 'A', floor: 2 },
+  { number: 'A204A', group: 'A204', building: 'A', floor: 2 },
+  { number: 'A204B', group: 'A204', building: 'A', floor: 2 },
+  { number: 'A205A', group: 'A205', building: 'A', floor: 2 },
+  { number: 'A205B', group: 'A205', building: 'A', floor: 2 },
+  { number: 'A206', group: 'A206', building: 'A', floor: 2 },
+  { number: 'A207', group: 'A207', building: 'A', floor: 2 },
+  { number: 'A208A', group: 'A208', building: 'A', floor: 2 },
+  { number: 'A208B', group: 'A208', building: 'A', floor: 2 },
+  { number: 'A209A', group: 'A209', building: 'A', floor: 2 },
+  { number: 'A209B', group: 'A209', building: 'A', floor: 2 },
+  { number: 'A210A', group: 'A210', building: 'A', floor: 2 },
+  { number: 'A210B', group: 'A210', building: 'A', floor: 2 },
+  { number: 'A211', group: 'A211', building: 'A', floor: 2 },
+  { number: 'A212', group: 'A212', building: 'A', floor: 2 },
+  { number: 'A213', group: 'A213', building: 'A', floor: 2 },
+
+  # Building A - Floor 3
+  { number: 'A301', group: 'A301', building: 'A', floor: 3 },
+  { number: 'A302', group: 'A302', building: 'A', floor: 3 },
+  { number: 'A303', group: 'A303', building: 'A', floor: 3 },
+  { number: 'A304A', group: 'A304', building: 'A', floor: 3 },
+  { number: 'A304B', group: 'A304', building: 'A', floor: 3 },
+  { number: 'A305', group: 'A305', building: 'A', floor: 3 },
+  { number: 'A306', group: 'A306', building: 'A', floor: 3 },
+  { number: 'A307', group: 'A307', building: 'A', floor: 3 },
+  { number: 'A308A', group: 'A308', building: 'A', floor: 3 },
+  { number: 'A308B', group: 'A308', building: 'A', floor: 3 },
+  { number: 'A309A', group: 'A309', building: 'A', floor: 3 },
+  { number: 'A309B', group: 'A309', building: 'A', floor: 3 },
+  { number: 'A310A', group: 'A310', building: 'A', floor: 3 },
+  { number: 'A310B', group: 'A310', building: 'A', floor: 3 },
+  { number: 'A311', group: 'A311', building: 'A', floor: 3 },
+  { number: 'A312', group: 'A312', building: 'A', floor: 3 },
+  { number: 'A313', group: 'A313', building: 'A', floor: 3 },
+  # Room A314 and A315 are missing. Do they exist? Is A316 a typo?
+  { number: 'A316', group: 'A316', building: 'A', floor: 3 },
+
+  # Building B - Floor 0
+  { number: 'B001A', group: 'B001', building: 'B', floor: 0 },
+  { number: 'B001B', group: 'B001', building: 'B', floor: 0 },
+  { number: 'B002', group: 'B002', building: 'B', floor: 0 },
+  { number: 'B003', group: 'B003', building: 'B', floor: 0 },
+  { number: 'B004', group: 'B004', building: 'B', floor: 0 },
+  # Room B005 - B009 are missing. Do they exist? Is B010 a typo?
+  { number: 'B010', group: 'B010', building: 'B', floor: 0 },
+
+  # Building B - Floor 1
+  { number: 'B101', group: 'B101', building: 'B', floor: 1 },
+  { number: 'B102', group: 'B102', building: 'B', floor: 1 },
+  { number: 'B103', group: 'B103', building: 'B', floor: 1 },
+  { number: 'B104', group: 'B104', building: 'B', floor: 1 },
+  { number: 'B105A', group: 'B105', building: 'B', floor: 1 },
+  { number: 'B105B', group: 'B105', building: 'B', floor: 1 },
+  { number: 'B106', group: 'B106', building: 'B', floor: 1 },
+  { number: 'B107', group: 'B107', building: 'B', floor: 1 },
+  { number: 'B108', group: 'B108', building: 'B', floor: 1 },
+  { number: 'B109', group: 'B109', building: 'B', floor: 1 },
+  { number: 'B110A', group: 'B110', building: 'B', floor: 1 },
+  { number: 'B110B', group: 'B110', building: 'B', floor: 1 },
+  { number: 'B111A', group: 'B111', building: 'B', floor: 1 },
+  { number: 'B111B', group: 'B111', building: 'B', floor: 1 },
+  { number: 'B112', group: 'B112', building: 'B', floor: 1 },
+  { number: 'B113', group: 'B113', building: 'B', floor: 1 },
+  { number: 'B114', group: 'B114', building: 'B', floor: 1 },
+
+  # Building B - Floor 2
+  { number: 'B201', group: 'B201', building: 'B', floor: 2 },
+  { number: 'B202', group: 'B202', building: 'B', floor: 2 },
+  { number: 'B203', group: 'B203', building: 'B', floor: 2 },
+  { number: 'B204', group: 'B204', building: 'B', floor: 2 },
+  { number: 'B205A', group: 'B205', building: 'B', floor: 2 },
+  { number: 'B205B', group: 'B205', building: 'B', floor: 2 },
+  { number: 'B206', group: 'B206', building: 'B', floor: 2 },
+  { number: 'B207', group: 'B207', building: 'B', floor: 2 },
+  { number: 'B208', group: 'B208', building: 'B', floor: 2 },
+  { number: 'B209', group: 'B209', building: 'B', floor: 2 },
+  { number: 'B210A', group: 'B210', building: 'B', floor: 2 },
+  { number: 'B210B', group: 'B210', building: 'B', floor: 2 },
+  { number: 'B211A', group: 'B211', building: 'B', floor: 2 },
+  { number: 'B211B', group: 'B211', building: 'B', floor: 2 },
+  { number: 'B212', group: 'B212', building: 'B', floor: 2 },
+  { number: 'B213', group: 'B213', building: 'B', floor: 2 },
+  { number: 'B214', group: 'B214', building: 'B', floor: 2 },
+
+  # Building B - Floor 3
+  { number: 'B301', group: 'B301', building: 'B', floor: 3 },
+  { number: 'B302', group: 'B302', building: 'B', floor: 3 },
+  { number: 'B303A', group: 'B303', building: 'B', floor: 3 },
+  { number: 'B303B', group: 'B303', building: 'B', floor: 3 },
+  { number: 'B304', group: 'B304', building: 'B', floor: 3 },
+  { number: 'B305', group: 'B305', building: 'B', floor: 3 },
+  { number: 'B306', group: 'B306', building: 'B', floor: 3 },
+  { number: 'B307', group: 'B307', building: 'B', floor: 3 },
+  { number: 'B308A', group: 'B308', building: 'B', floor: 3 },
+  { number: 'B308B', group: 'B308', building: 'B', floor: 3 },
+  { number: 'B309A', group: 'B309', building: 'B', floor: 3 },
+  { number: 'B309B', group: 'B309', building: 'B', floor: 3 },
+  { number: 'B310', group: 'B310', building: 'B', floor: 3 },
+  { number: 'B311', group: 'B311', building: 'B', floor: 3 },
+  { number: 'B312', group: 'B312', building: 'B', floor: 3 },
+
+  # Building C - Floor 0
+  { number: 'C001A', group: 'C001', building: 'C', floor: 0 },
+  { number: 'C001B', group: 'C001', building: 'C', floor: 0 },
+  { number: 'C002', group: 'C002', building: 'C', floor: 0 },
+  { number: 'C003A', group: 'C003', building: 'C', floor: 0 },
+  { number: 'C003B', group: 'C003', building: 'C', floor: 0 },
+  { number: 'C004', group: 'C004', building: 'C', floor: 0 },
+  { number: 'C005', group: 'C005', building: 'C', floor: 0 },
+  { number: 'C006', group: 'C006', building: 'C', floor: 0 },
+  { number: 'C007', group: 'C007', building: 'C', floor: 0 },
+  { number: 'C008', group: 'C008', building: 'C', floor: 0 },
+  { number: 'C009A', group: 'C009', building: 'C', floor: 0 },
+  { number: 'C009B', group: 'C009', building: 'C', floor: 0 },
+  { number: 'C010', group: 'C010', building: 'C', floor: 0 },
+  { number: 'C011', group: 'C011', building: 'C', floor: 0 },
+  { number: 'C012', group: 'C012', building: 'C', floor: 0 },
+  { number: 'C013', group: 'C013', building: 'C', floor: 0 },
+
+  # Building C - Floor 1
+  { number: 'C101', group: 'C101', building: 'C', floor: 1 },
+  { number: 'C102', group: 'C102', building: 'C', floor: 1 },
+  { number: 'C103A', group: 'C103', building: 'C', floor: 1 },
+  { number: 'C103B', group: 'C103', building: 'C', floor: 1 },
+  { number: 'C104', group: 'C104', building: 'C', floor: 1 },
+  { number: 'C105A', group: 'C105', building: 'C', floor: 1 },
+  { number: 'C105B', group: 'C105', building: 'C', floor: 1 },
+  { number: 'C106', group: 'C106', building: 'C', floor: 1 },
+  { number: 'C107', group: 'C107', building: 'C', floor: 1 },
+  { number: 'C108', group: 'C108', building: 'C', floor: 1 },
+  { number: 'C109', group: 'C109', building: 'C', floor: 1 },
+  { number: 'C110', group: 'C110', building: 'C', floor: 1 },
+  { number: 'C111A', group: 'C111', building: 'C', floor: 1 },
+  { number: 'C111B', group: 'C111', building: 'C', floor: 1 },
+  { number: 'C112A', group: 'C112', building: 'C', floor: 1 },
+  { number: 'C112B', group: 'C112', building: 'C', floor: 1 },
+  { number: 'C113', group: 'C113', building: 'C', floor: 1 },
+  { number: 'C114', group: 'C114', building: 'C', floor: 1 },
+  { number: 'C115', group: 'C115', building: 'C', floor: 1 },
+  # Room C116 - C120 are missing. Do they exist? Is C121 a typo?
+  { number: 'C121A', group: 'C121', building: 'C', floor: 1 },
+  { number: 'C121B', group: 'C121', building: 'C', floor: 1 },
+
+  # Building C - Floor 2
+  { number: 'C201', group: 'C201', building: 'C', floor: 2 },
+  { number: 'C202', group: 'C202', building: 'C', floor: 2 },
+  { number: 'C203A', group: 'C203', building: 'C', floor: 2 },
+  { number: 'C203B', group: 'C203', building: 'C', floor: 2 },
+  { number: 'C204', group: 'C204', building: 'C', floor: 2 },
+  { number: 'C205A', group: 'C205', building: 'C', floor: 2 },
+  { number: 'C205B', group: 'C205', building: 'C', floor: 2 },
+  { number: 'C206', group: 'C206', building: 'C', floor: 2 },
+  { number: 'C207', group: 'C207', building: 'C', floor: 2 },
+  { number: 'C208', group: 'C208', building: 'C', floor: 2 },
+  { number: 'C209', group: 'C209', building: 'C', floor: 2 },
+  { number: 'C210', group: 'C210', building: 'C', floor: 2 },
+  { number: 'C211A', group: 'C211', building: 'C', floor: 2 },
+  { number: 'C211B', group: 'C211', building: 'C', floor: 2 },
+  { number: 'C212A', group: 'C212', building: 'C', floor: 2 },
+  { number: 'C212B', group: 'C212', building: 'C', floor: 2 },
+  { number: 'C213', group: 'C213', building: 'C', floor: 2 },
+  { number: 'C214', group: 'C214', building: 'C', floor: 2 },
+  { number: 'C215', group: 'C215', building: 'C', floor: 2 },
+
+  # Building C - Floor 3
+  { number: 'C301', group: 'C301', building: 'C', floor: 3 },
+  { number: 'C302', group: 'C302', building: 'C', floor: 3 },
+  { number: 'C303A', group: 'C303', building: 'C', floor: 3 },
+  { number: 'C303B', group: 'C303', building: 'C', floor: 3 },
+  { number: 'C304A', group: 'C304', building: 'C', floor: 3 },
+  { number: 'C304B', group: 'C304', building: 'C', floor: 3 },
+  { number: 'C305', group: 'C305', building: 'C', floor: 3 },
+  { number: 'C306', group: 'C306', building: 'C', floor: 3 },
+  { number: 'C307', group: 'C307', building: 'C', floor: 3 },
+  { number: 'C308', group: 'C308', building: 'C', floor: 3 },
+  { number: 'C309', group: 'C309', building: 'C', floor: 3 },
+  { number: 'C310A', group: 'C310', building: 'C', floor: 3 },
+  { number: 'C310B', group: 'C310', building: 'C', floor: 3 },
+  { number: 'C311', group: 'C311', building: 'C', floor: 3 },
+  { number: 'C312', group: 'C312', building: 'C', floor: 3 },
+  { number: 'C313', group: 'C313', building: 'C', floor: 3 },
+  { number: 'C314', group: 'C314', building: 'C', floor: 3 },
+
+  # Building D - Floor 0
+  { number: 'D001', group: 'D001', building: 'D', floor: 0 },
+  { number: 'D002', group: 'D002', building: 'D', floor: 0 },
+  { number: 'D003', group: 'D003', building: 'D', floor: 0 },
+  { number: 'D004', group: 'D004', building: 'D', floor: 0 },
+  { number: 'D005', group: 'D005', building: 'D', floor: 0 },
+  { number: 'D006', group: 'D006', building: 'D', floor: 0 },
+  { number: 'D007A', group: 'D007', building: 'D', floor: 0 },
+  { number: 'D007B', group: 'D007', building: 'D', floor: 0 },
+  { number: 'D008A', group: 'D008', building: 'D', floor: 0 },
+  { number: 'D008B', group: 'D008', building: 'D', floor: 0 },
+  { number: 'D009', group: 'D009', building: 'D', floor: 0 },
+  { number: 'D010', group: 'D010', building: 'D', floor: 0 },
+  { number: 'D011', group: 'D011', building: 'D', floor: 0 },
+
+  # Building D - Floor 1
+  { number: 'D101', group: 'D101', building: 'D', floor: 1 },
+  { number: 'D102', group: 'D102', building: 'D', floor: 1 },
+  { number: 'D103', group: 'D103', building: 'D', floor: 1 },
+  { number: 'D104', group: 'D104', building: 'D', floor: 1 },
+  { number: 'D105', group: 'D105', building: 'D', floor: 1 },
+  { number: 'D106', group: 'D106', building: 'D', floor: 1 },
+  { number: 'D107A', group: 'D107', building: 'D', floor: 1 },
+  { number: 'D107B', group: 'D107', building: 'D', floor: 1 },
+  { number: 'D108A', group: 'D108', building: 'D', floor: 1 },
+  { number: 'D108B', group: 'D108', building: 'D', floor: 1 },
+  { number: 'D109', group: 'D109', building: 'D', floor: 1 },
+  { number: 'D110', group: 'D110', building: 'D', floor: 1 },
+  { number: 'D111A', group: 'D111', building: 'D', floor: 1 },
+  { number: 'D111B', group: 'D111', building: 'D', floor: 1 },
+  { number: 'D112', group: 'D112', building: 'D', floor: 1 },
+  { number: 'D113', group: 'D113', building: 'D', floor: 1 },
+  { number: 'D114', group: 'D114', building: 'D', floor: 1 },
+  { number: 'D115', group: 'D115', building: 'D', floor: 1 },
+  { number: 'D116A', group: 'D116', building: 'D', floor: 1 },
+  { number: 'D116B', group: 'D116', building: 'D', floor: 1 },
+  { number: 'D117A', group: 'D117', building: 'D', floor: 1 },
+  { number: 'D117B', group: 'D117', building: 'D', floor: 1 },
+  { number: 'D118', group: 'D118', building: 'D', floor: 1 },
+  { number: 'D119', group: 'D119', building: 'D', floor: 1 },
+  { number: 'D120', group: 'D120', building: 'D', floor: 1 },
+  { number: 'D121A', group: 'D121', building: 'D', floor: 1 },
+  { number: 'D121B', group: 'D121', building: 'D', floor: 1 },
+  { number: 'D122A', group: 'D122', building: 'D', floor: 1 },
+  { number: 'D122B', group: 'D122', building: 'D', floor: 1 },
+  { number: 'D123', group: 'D123', building: 'D', floor: 1 },
+  { number: 'D124', group: 'D124', building: 'D', floor: 1 },
+
+  # Building D - Floor 2
+  { number: 'D201', group: 'D201', building: 'D', floor: 2 },
+  { number: 'D202', group: 'D202', building: 'D', floor: 2 },
+  { number: 'D203', group: 'D203', building: 'D', floor: 2 },
+  { number: 'D204', group: 'D204', building: 'D', floor: 2 },
+  { number: 'D205', group: 'D205', building: 'D', floor: 2 },
+  { number: 'D206', group: 'D206', building: 'D', floor: 2 },
+  { number: 'D207A', group: 'D207', building: 'D', floor: 2 },
+  { number: 'D207B', group: 'D207', building: 'D', floor: 2 },
+  { number: 'D208A', group: 'D208', building: 'D', floor: 2 },
+  { number: 'D208B', group: 'D208', building: 'D', floor: 2 },
+  { number: 'D209', group: 'D209', building: 'D', floor: 2 },
+  { number: 'D210', group: 'D210', building: 'D', floor: 2 },
+  { number: 'D211A', group: 'D211', building: 'D', floor: 2 },
+  { number: 'D211B', group: 'D211', building: 'D', floor: 2 },
+  { number: 'D212', group: 'D212', building: 'D', floor: 2 },
+  { number: 'D213', group: 'D213', building: 'D', floor: 2 },
+  { number: 'D214', group: 'D214', building: 'D', floor: 2 },
+  { number: 'D215', group: 'D215', building: 'D', floor: 2 },
+  { number: 'D216A', group: 'D216', building: 'D', floor: 2 },
+  { number: 'D216B', group: 'D216', building: 'D', floor: 2 },
+  { number: 'D217A', group: 'D217', building: 'D', floor: 2 },
+  { number: 'D217B', group: 'D217', building: 'D', floor: 2 },
+  { number: 'D218', group: 'D218', building: 'D', floor: 2 },
+  { number: 'D219', group: 'D219', building: 'D', floor: 2 },
+  { number: 'D220', group: 'D220', building: 'D', floor: 2 },
+  { number: 'D221A', group: 'D221', building: 'D', floor: 2 },
+  { number: 'D221B', group: 'D221', building: 'D', floor: 2 },
+  { number: 'D222A', group: 'D222', building: 'D', floor: 2 },
+  { number: 'D222B', group: 'D222', building: 'D', floor: 2 },
+  { number: 'D223', group: 'D223', building: 'D', floor: 2 },
+  { number: 'D224', group: 'D224', building: 'D', floor: 2 },
+
+  # Building D - Floor 3
+  { number: 'D301', group: 'D301', building: 'D', floor: 3 },
+  { number: 'D302', group: 'D302', building: 'D', floor: 3 },
+  { number: 'D303', group: 'D303', building: 'D', floor: 3 },
+  { number: 'D304', group: 'D304', building: 'D', floor: 3 },
+  { number: 'D305', group: 'D305', building: 'D', floor: 3 },
+  { number: 'D306', group: 'D306', building: 'D', floor: 3 },
+  { number: 'D307A', group: 'D307', building: 'D', floor: 3 },
+  { number: 'D307B', group: 'D307', building: 'D', floor: 3 },
+  { number: 'D308', group: 'D308', building: 'D', floor: 3 },
+  { number: 'D309', group: 'D309', building: 'D', floor: 3 },
+  { number: 'D310A', group: 'D310', building: 'D', floor: 3 },
+  { number: 'D310B', group: 'D310', building: 'D', floor: 3 },
+  { number: 'D311', group: 'D311', building: 'D', floor: 3 },
+  { number: 'D312', group: 'D312', building: 'D', floor: 3 },
+  { number: 'D313', group: 'D313', building: 'D', floor: 3 },
+  { number: 'D314', group: 'D314', building: 'D', floor: 3 },
+  { number: 'D315A', group: 'D315', building: 'D', floor: 3 },
+  { number: 'D315B', group: 'D315', building: 'D', floor: 3 },
+  { number: 'D316A', group: 'D316', building: 'D', floor: 3 },
+  { number: 'D316B', group: 'D316', building: 'D', floor: 3 },
+  { number: 'D317', group: 'D317', building: 'D', floor: 3 },
+  { number: 'D318', group: 'D318', building: 'D', floor: 3 },
+  { number: 'D319', group: 'D319', building: 'D', floor: 3 },
+  { number: 'D320A', group: 'D320', building: 'D', floor: 3 },
+  { number: 'D320B', group: 'D320', building: 'D', floor: 3 },
+  { number: 'D321', group: 'D321', building: 'D', floor: 3 },
+  { number: 'D322', group: 'D322', building: 'D', floor: 3 },
+  { number: 'D323', group: 'D323', building: 'D', floor: 3 },
+
+  # Building E - Floor 0
+  { number: 'E001', group: 'E001', building: 'E', floor: 0 },
+  { number: 'E002', group: 'E002', building: 'E', floor: 0 },
+  { number: 'E003', group: 'E003', building: 'E', floor: 0 },
+  { number: 'E004', group: 'E004', building: 'E', floor: 0 },
+  { number: 'E005', group: 'E005', building: 'E', floor: 0 },
+  { number: 'E006', group: 'E006', building: 'E', floor: 0 },
+  { number: 'E007', group: 'E007', building: 'E', floor: 0 },
+  { number: 'E008', group: 'E008', building: 'E', floor: 0 },
+  { number: 'E009', group: 'E009', building: 'E', floor: 0 },
+  { number: 'E010', group: 'E010', building: 'E', floor: 0 },
+  { number: 'E011A', group: 'E011', building: 'E', floor: 0 },
+  { number: 'E011B', group: 'E011', building: 'E', floor: 0 },
+  { number: 'E012', group: 'E012', building: 'E', floor: 0 },
+  { number: 'E013', group: 'E013', building: 'E', floor: 0 },
+  { number: 'E014A', group: 'E014', building: 'E', floor: 0 },
+  { number: 'E014B', group: 'E014', building: 'E', floor: 0 },
+  { number: 'E015', group: 'E015', building: 'E', floor: 0 },
+  { number: 'E016', group: 'E016', building: 'E', floor: 0 },
+  { number: 'E017', group: 'E017', building: 'E', floor: 0 },
+  { number: 'E018', group: 'E018', building: 'E', floor: 0 },
+  { number: 'E019', group: 'E019', building: 'E', floor: 0 },
+  { number: 'E020', group: 'E020', building: 'E', floor: 0 },
+  { number: 'E021', group: 'E021', building: 'E', floor: 0 },
+  { number: 'E022', group: 'E022', building: 'E', floor: 0 },
+
+  # Building E - Floor 1
+  { number: 'E101', group: 'E101', building: 'E', floor: 1 },
+  { number: 'E102', group: 'E102', building: 'E', floor: 1 },
+  { number: 'E103', group: 'E103', building: 'E', floor: 1 },
+  { number: 'E104A', group: 'E104', building: 'E', floor: 1 },
+  { number: 'E104B', group: 'E104', building: 'E', floor: 1 },
+  { number: 'E105', group: 'E105', building: 'E', floor: 1 },
+  { number: 'E106', group: 'E106', building: 'E', floor: 1 },
+  { number: 'E107', group: 'E107', building: 'E', floor: 1 },
+  { number: 'E108', group: 'E108', building: 'E', floor: 1 },
+  { number: 'E109', group: 'E109', building: 'E', floor: 1 },
+  { number: 'E110', group: 'E110', building: 'E', floor: 1 },
+  { number: 'E111', group: 'E111', building: 'E', floor: 1 },
+  { number: 'E112', group: 'E112', building: 'E', floor: 1 },
+  { number: 'E113', group: 'E113', building: 'E', floor: 1 },
+  { number: 'E114A', group: 'E114', building: 'E', floor: 1 },
+  { number: 'E114B', group: 'E114', building: 'E', floor: 1 },
+  { number: 'E115A', group: 'E115', building: 'E', floor: 1 },
+  { number: 'E115B', group: 'E115', building: 'E', floor: 1 },
+  { number: 'E116', group: 'E116', building: 'E', floor: 1 },
+  { number: 'E117', group: 'E117', building: 'E', floor: 1 },
+  { number: 'E118A', group: 'E118', building: 'E', floor: 1 },
+  { number: 'E118B', group: 'E118', building: 'E', floor: 1 },
+  { number: 'E119A', group: 'E119', building: 'E', floor: 1 },
+  { number: 'E119B', group: 'E119', building: 'E', floor: 1 },
+  { number: 'E120', group: 'E120', building: 'E', floor: 1 },
+  { number: 'E121', group: 'E121', building: 'E', floor: 1 },
+  { number: 'E122', group: 'E122', building: 'E', floor: 1 },
+  { number: 'E123', group: 'E123', building: 'E', floor: 1 },
+  { number: 'E124', group: 'E124', building: 'E', floor: 1 },
+  { number: 'E125', group: 'E125', building: 'E', floor: 1 },
+  { number: 'E126', group: 'E126', building: 'E', floor: 1 },
+  # Room E127 - E138 are missing. Do they exist? Is E139 a typo?
+  { number: 'E139A', group: 'E139', building: 'E', floor: 1 },
+  { number: 'E139B', group: 'E139', building: 'E', floor: 1 },
+
+  # Building E - Floor 2
+  { number: 'E201', group: 'E201', building: 'E', floor: 2 },
+  { number: 'E202', group: 'E202', building: 'E', floor: 2 },
+  { number: 'E203', group: 'E203', building: 'E', floor: 2 },
+  { number: 'E204', group: 'E204', building: 'E', floor: 2 },
+  { number: 'E205', group: 'E205', building: 'E', floor: 2 },
+  { number: 'E206', group: 'E206', building: 'E', floor: 2 },
+  { number: 'E207', group: 'E207', building: 'E', floor: 2 },
+  { number: 'E208', group: 'E208', building: 'E', floor: 2 },
+  { number: 'E209', group: 'E209', building: 'E', floor: 2 },
+  { number: 'E210', group: 'E210', building: 'E', floor: 2 },
+  { number: 'E211', group: 'E211', building: 'E', floor: 2 },
+  { number: 'E212', group: 'E212', building: 'E', floor: 2 },
+  { number: 'E213', group: 'E213', building: 'E', floor: 2 },
+  { number: 'E214A', group: 'E214', building: 'E', floor: 2 },
+  { number: 'E214B', group: 'E214', building: 'E', floor: 2 },
+  { number: 'E215A', group: 'E215', building: 'E', floor: 2 },
+  { number: 'E215B', group: 'E215', building: 'E', floor: 2 },
+  { number: 'E216', group: 'E216', building: 'E', floor: 2 },
+  { number: 'E217', group: 'E217', building: 'E', floor: 2 },
+  { number: 'E218A', group: 'E218', building: 'E', floor: 2 },
+  { number: 'E218B', group: 'E218', building: 'E', floor: 2 },
+  { number: 'E219A', group: 'E219', building: 'E', floor: 2 },
+  { number: 'E219B', group: 'E219', building: 'E', floor: 2 },
+  { number: 'E220', group: 'E220', building: 'E', floor: 2 },
+  { number: 'E221', group: 'E221', building: 'E', floor: 2 },
+  { number: 'E222', group: 'E222', building: 'E', floor: 2 },
+  { number: 'E223', group: 'E223', building: 'E', floor: 2 },
+  { number: 'E224', group: 'E224', building: 'E', floor: 2 },
+  { number: 'E225', group: 'E225', building: 'E', floor: 2 },
+  { number: 'E226', group: 'E226', building: 'E', floor: 2 },
+
+  # Building E - Floor 3
+  { number: 'E301', group: 'E301', building: 'E', floor: 3 },
+  { number: 'E302', group: 'E302', building: 'E', floor: 3 },
+  { number: 'E303', group: 'E303', building: 'E', floor: 3 },
+  { number: 'E304', group: 'E304', building: 'E', floor: 3 },
+  { number: 'E305', group: 'E305', building: 'E', floor: 3 },
+  { number: 'E306', group: 'E306', building: 'E', floor: 3 },
+  { number: 'E307', group: 'E307', building: 'E', floor: 3 },
+  { number: 'E308', group: 'E308', building: 'E', floor: 3 },
+  { number: 'E309', group: 'E309', building: 'E', floor: 3 },
+  { number: 'E310', group: 'E310', building: 'E', floor: 3 },
+  { number: 'E311', group: 'E311', building: 'E', floor: 3 },
+  { number: 'E312', group: 'E312', building: 'E', floor: 3 },
+  { number: 'E313', group: 'E313', building: 'E', floor: 3 },
+  { number: 'E314', group: 'E314', building: 'E', floor: 3 },
+  { number: 'E315A', group: 'E315', building: 'E', floor: 3 },
+  { number: 'E315B', group: 'E315', building: 'E', floor: 3 },
+  { number: 'E316', group: 'E316', building: 'E', floor: 3 },
+  { number: 'E317', group: 'E317', building: 'E', floor: 3 },
+  { number: 'E318A', group: 'E318', building: 'E', floor: 3 },
+  { number: 'E318B', group: 'E318', building: 'E', floor: 3 },
+  { number: 'E319', group: 'E319', building: 'E', floor: 3 },
+  { number: 'E320', group: 'E320', building: 'E', floor: 3 },
+  { number: 'E321', group: 'E321', building: 'E', floor: 3 },
+  { number: 'E322', group: 'E322', building: 'E', floor: 3 },
+  { number: 'E323', group: 'E323', building: 'E', floor: 3 },
+  { number: 'E324', group: 'E324', building: 'E', floor: 3 },
+  { number: 'E325', group: 'E325', building: 'E', floor: 3 },
+  { number: 'E326', group: 'E326', building: 'E', floor: 3 },
+
+  # Building F - Floor 0
+  { number: 'F001', group: 'F001', building: 'F', floor: 0 },
+  { number: 'F002', group: 'F002', building: 'F', floor: 0 },
+  { number: 'F003', group: 'F003', building: 'F', floor: 0 },
+  { number: 'F004A', group: 'F004', building: 'F', floor: 0 },
+  { number: 'F004B', group: 'F004', building: 'F', floor: 0 },
+  { number: 'F005', group: 'F005', building: 'F', floor: 0 },
+  { number: 'F006', group: 'F006', building: 'F', floor: 0 },
+  { number: 'F007A', group: 'F007', building: 'F', floor: 0 },
+  { number: 'F007B', group: 'F007', building: 'F', floor: 0 },
+  { number: 'F008', group: 'F008', building: 'F', floor: 0 },
+  { number: 'F009', group: 'F009', building: 'F', floor: 0 },
+  { number: 'F010', group: 'F010', building: 'F', floor: 0 },
+  { number: 'F011', group: 'F011', building: 'F', floor: 0 },
+  { number: 'F012A', group: 'F012', building: 'F', floor: 0 },
+  { number: 'F012B', group: 'F012', building: 'F', floor: 0 },
+  { number: 'F013A', group: 'F013', building: 'F', floor: 0 },
+  { number: 'F013B', group: 'F013', building: 'F', floor: 0 },
+  { number: 'F014', group: 'F014', building: 'F', floor: 0 },
+  { number: 'F015', group: 'F015', building: 'F', floor: 0 },
+  { number: 'F016', group: 'F016', building: 'F', floor: 0 },
+  { number: 'F017', group: 'F017', building: 'F', floor: 0 },
+  { number: 'F018A', group: 'F018', building: 'F', floor: 0 },
+  { number: 'F018B', group: 'F018', building: 'F', floor: 0 },
+  { number: 'F019', group: 'F019', building: 'F', floor: 0 },
+  { number: 'F020', group: 'F020', building: 'F', floor: 0 },
+  { number: 'F021', group: 'F021', building: 'F', floor: 0 },
+  { number: 'F022', group: 'F022', building: 'F', floor: 0 },
+  { number: 'F023', group: 'F023', building: 'F', floor: 0 },
+  { number: 'F024', group: 'F024', building: 'F', floor: 0 },
+  { number: 'F025A', group: 'F025', building: 'F', floor: 0 },
+  { number: 'F025B', group: 'F025', building: 'F', floor: 0 },
+  { number: 'F026', group: 'F026', building: 'F', floor: 0 },
+  { number: 'F027', group: 'F027', building: 'F', floor: 0 },
+  { number: 'F028', group: 'F028', building: 'F', floor: 0 },
+
+  # Building F - Floor 1
+  { number: 'F101A', group: 'F101', building: 'F', floor: 1 },
+  { number: 'F101B', group: 'F101', building: 'F', floor: 1 },
+  { number: 'F102', group: 'F102', building: 'F', floor: 1 },
+  { number: 'F103', group: 'F103', building: 'F', floor: 1 },
+  { number: 'F104A', group: 'F104', building: 'F', floor: 1 },
+  { number: 'F104B', group: 'F104', building: 'F', floor: 1 },
+  { number: 'F105A', group: 'F105', building: 'F', floor: 1 },
+  { number: 'F105B', group: 'F105', building: 'F', floor: 1 },
+  { number: 'F106', group: 'F106', building: 'F', floor: 1 },
+  { number: 'F107', group: 'F107', building: 'F', floor: 1 },
+  { number: 'F108', group: 'F108', building: 'F', floor: 1 },
+  { number: 'F109A', group: 'F109', building: 'F', floor: 1 },
+  { number: 'F109B', group: 'F109', building: 'F', floor: 1 },
+  { number: 'F110A', group: 'F110', building: 'F', floor: 1 },
+  { number: 'F110B', group: 'F110', building: 'F', floor: 1 },
+  { number: 'F111', group: 'F111', building: 'F', floor: 1 },
+  { number: 'F112', group: 'F112', building: 'F', floor: 1 },
+  { number: 'F113', group: 'F113', building: 'F', floor: 1 },
+  { number: 'F114', group: 'F114', building: 'F', floor: 1 },
+  { number: 'F115', group: 'F115', building: 'F', floor: 1 },
+  { number: 'F116', group: 'F116', building: 'F', floor: 1 },
+  { number: 'F117A', group: 'F117', building: 'F', floor: 1 },
+  { number: 'F117B', group: 'F117', building: 'F', floor: 1 },
+  { number: 'F118', group: 'F118', building: 'F', floor: 1 },
+  { number: 'F119', group: 'F119', building: 'F', floor: 1 },
+  { number: 'F120', group: 'F120', building: 'F', floor: 1 },
+  { number: 'F121', group: 'F121', building: 'F', floor: 1 },
+  { number: 'F122', group: 'F122', building: 'F', floor: 1 },
+  { number: 'F123A', group: 'F123', building: 'F', floor: 1 },
+  { number: 'F123B', group: 'F123', building: 'F', floor: 1 },
+  { number: 'F124A', group: 'F124', building: 'F', floor: 1 },
+  { number: 'F124B', group: 'F124', building: 'F', floor: 1 },
+  { number: 'F125', group: 'F125', building: 'F', floor: 1 },
+  { number: 'F126', group: 'F126', building: 'F', floor: 1 },
+  { number: 'F127A', group: 'F127', building: 'F', floor: 1 },
+  { number: 'F127B', group: 'F127', building: 'F', floor: 1 },
+  { number: 'F128', group: 'F128', building: 'F', floor: 1 },
+  { number: 'F129', group: 'F129', building: 'F', floor: 1 },
+  { number: 'F130', group: 'F130', building: 'F', floor: 1 },
+  { number: 'F131', group: 'F131', building: 'F', floor: 1 },
+  { number: 'F132', group: 'F132', building: 'F', floor: 1 },
+  { number: 'F133', group: 'F133', building: 'F', floor: 1 },
+  { number: 'F134', group: 'F134', building: 'F', floor: 1 },
+  { number: 'F135', group: 'F135', building: 'F', floor: 1 },
+  { number: 'F136', group: 'F136', building: 'F', floor: 1 },
+  { number: 'F137', group: 'F137', building: 'F', floor: 1 },
+
+  # Building F - Floor 2
+  { number: 'F201A', group: 'F201', building: 'F', floor: 2 },
+  { number: 'F201B', group: 'F201', building: 'F', floor: 2 },
+  { number: 'F202', group: 'F202', building: 'F', floor: 2 },
+  { number: 'F203', group: 'F203', building: 'F', floor: 2 },
+  { number: 'F204A', group: 'F204', building: 'F', floor: 2 },
+  { number: 'F204B', group: 'F204', building: 'F', floor: 2 },
+  { number: 'F205A', group: 'F205', building: 'F', floor: 2 },
+  { number: 'F205B', group: 'F205', building: 'F', floor: 2 },
+  { number: 'F206', group: 'F206', building: 'F', floor: 2 },
+  { number: 'F207', group: 'F207', building: 'F', floor: 2 },
+  { number: 'F208', group: 'F208', building: 'F', floor: 2 },
+  { number: 'F209A', group: 'F209', building: 'F', floor: 2 },
+  { number: 'F209B', group: 'F209', building: 'F', floor: 2 },
+  { number: 'F210A', group: 'F210', building: 'F', floor: 2 },
+  { number: 'F210B', group: 'F210', building: 'F', floor: 2 },
+  { number: 'F211', group: 'F211', building: 'F', floor: 2 },
+  { number: 'F212', group: 'F212', building: 'F', floor: 2 },
+  { number: 'F213', group: 'F213', building: 'F', floor: 2 },
+  { number: 'F214', group: 'F214', building: 'F', floor: 2 },
+  { number: 'F215', group: 'F215', building: 'F', floor: 2 },
+  { number: 'F216', group: 'F216', building: 'F', floor: 2 },
+  { number: 'F217A', group: 'F217', building: 'F', floor: 2 },
+  { number: 'F217B', group: 'F217', building: 'F', floor: 2 },
+  { number: 'F218', group: 'F218', building: 'F', floor: 2 },
+  { number: 'F219', group: 'F219', building: 'F', floor: 2 },
+  { number: 'F220', group: 'F220', building: 'F', floor: 2 },
+  { number: 'F221', group: 'F221', building: 'F', floor: 2 },
+  { number: 'F222', group: 'F222', building: 'F', floor: 2 },
+  { number: 'F223A', group: 'F223', building: 'F', floor: 2 },
+  { number: 'F223B', group: 'F223', building: 'F', floor: 2 },
+  { number: 'F224A', group: 'F224', building: 'F', floor: 2 },
+  { number: 'F224B', group: 'F224', building: 'F', floor: 2 },
+  { number: 'F225', group: 'F225', building: 'F', floor: 2 },
+  { number: 'F226', group: 'F226', building: 'F', floor: 2 },
+  { number: 'F227A', group: 'F227', building: 'F', floor: 2 },
+  { number: 'F227B', group: 'F227', building: 'F', floor: 2 },
+  { number: 'F228', group: 'F228', building: 'F', floor: 2 },
+  { number: 'F229', group: 'F229', building: 'F', floor: 2 },
+  { number: 'F230', group: 'F230', building: 'F', floor: 2 },
+  { number: 'F231', group: 'F231', building: 'F', floor: 2 },
+  { number: 'F232', group: 'F232', building: 'F', floor: 2 },
+  { number: 'F233', group: 'F233', building: 'F', floor: 2 },
+  { number: 'F234', group: 'F234', building: 'F', floor: 2 },
+  { number: 'F235', group: 'F235', building: 'F', floor: 2 },
+  { number: 'F236', group: 'F236', building: 'F', floor: 2 },
+  { number: 'F237', group: 'F237', building: 'F', floor: 2 },
+
+  # Building F - Floor 3
+  { number: 'F301A', group: 'F301', building: 'F', floor: 3 },
+  { number: 'F301B', group: 'F301', building: 'F', floor: 3 },
+  { number: 'F302', group: 'F302', building: 'F', floor: 3 },
+  { number: 'F303', group: 'F303', building: 'F', floor: 3 },
+  { number: 'F304A', group: 'F304', building: 'F', floor: 3 },
+  { number: 'F304B', group: 'F304', building: 'F', floor: 3 },
+  { number: 'F305', group: 'F305', building: 'F', floor: 3 },
+  { number: 'F306', group: 'F306', building: 'F', floor: 3 },
+  { number: 'F307', group: 'F307', building: 'F', floor: 3 },
+  { number: 'F308', group: 'F308', building: 'F', floor: 3 },
+  { number: 'F309A', group: 'F309', building: 'F', floor: 3 },
+  { number: 'F309B', group: 'F309', building: 'F', floor: 3 },
+  { number: 'F310A', group: 'F310', building: 'F', floor: 3 },
+  { number: 'F310B', group: 'F310', building: 'F', floor: 3 },
+  { number: 'F311', group: 'F311', building: 'F', floor: 3 },
+  { number: 'F312', group: 'F312', building: 'F', floor: 3 },
+  { number: 'F313', group: 'F313', building: 'F', floor: 3 },
+  { number: 'F314', group: 'F314', building: 'F', floor: 3 },
+  { number: 'F315', group: 'F315', building: 'F', floor: 3 },
+  { number: 'F316', group: 'F316', building: 'F', floor: 3 },
+  { number: 'F317A', group: 'F317', building: 'F', floor: 3 },
+  { number: 'F317B', group: 'F317', building: 'F', floor: 3 },
+  { number: 'F318', group: 'F318', building: 'F', floor: 3 },
+  { number: 'F319', group: 'F319', building: 'F', floor: 3 },
+  { number: 'F320', group: 'F320', building: 'F', floor: 3 },
+  { number: 'F321', group: 'F321', building: 'F', floor: 3 },
+  { number: 'F322', group: 'F322', building: 'F', floor: 3 },
+  { number: 'F323', group: 'F323', building: 'F', floor: 3 },
+  { number: 'F324A', group: 'F324', building: 'F', floor: 3 },
+  { number: 'F324B', group: 'F324', building: 'F', floor: 3 },
+  { number: 'F325', group: 'F325', building: 'F', floor: 3 },
+  { number: 'F326', group: 'F326', building: 'F', floor: 3 },
+  { number: 'F327A', group: 'F327', building: 'F', floor: 3 },
+  { number: 'F327B', group: 'F327', building: 'F', floor: 3 },
+  { number: 'F328', group: 'F328', building: 'F', floor: 3 },
+  { number: 'F329', group: 'F329', building: 'F', floor: 3 },
+  { number: 'F330', group: 'F330', building: 'F', floor: 3 },
+  { number: 'F331', group: 'F331', building: 'F', floor: 3 },
+  { number: 'F332', group: 'F332', building: 'F', floor: 3 },
+  { number: 'F333', group: 'F333', building: 'F', floor: 3 },
+  { number: 'F334', group: 'F334', building: 'F', floor: 3 },
+  { number: 'F335', group: 'F335', building: 'F', floor: 3 },
+  { number: 'F336', group: 'F336', building: 'F', floor: 3 },
+  { number: 'F337', group: 'F337', building: 'F', floor: 3 },
+
+  # Special rooms
+  { number: 'DF1', group: 'DF', building: 'D', floor: 0 },
+  { number: 'DF2', group: 'DF', building: 'D', floor: 0 },
+  { number: 'DF3', group: 'DF', building: 'D', floor: 0 },
+  { number: 'DF4', group: 'DF', building: 'D', floor: 0 },
+  { number: 'CLAP', group: 'ASSO', building: 'D', floor: 0 },
+  { number: 'CAG', group: 'ASSO', building: 'D', floor: 0 },
+  { number: 'ALUMNI', group: 'ASSO', building: 'D', floor: 0 },
+  { number: 'AGR1', group: 'AGR', building: 'A', floor: 0 },
+  { number: 'AGR2', group: 'AGR', building: 'A', floor: 0 },
+  { number: 'FOYER', group: 'FOYER', building: 'F', floor: 0 }
+]
+# rubocop: enable Metrics/CollectionLiteralLength
+
+rooms.each do |room_attrs|
+  Room.find_or_create_by!(number: room_attrs[:number]) do |room|
+    room.group = room_attrs[:group]
+    room.building = room_attrs[:building]
+    room.floor = room_attrs[:floor]
+  end
+end
diff --git a/test/controllers/api/users_controller_test.rb b/test/controllers/api/users_controller_test.rb
index af6fe05f..3687d7b3 100644
--- a/test/controllers/api/users_controller_test.rb
+++ b/test/controllers/api/users_controller_test.rb
@@ -18,7 +18,7 @@ def setup
       assert_equal @user.firstname, response_body[:firstname]
       assert_equal @user.lastname, response_body[:lastname]
       assert_equal @user.email, response_body[:email]
-      assert_equal @user.room, response_body[:room]
+      assert_equal @user.room&.number, response_body[:room]
       assert_equal api_user_url(@user), response_body[:url]
       assert_equal @user.internet_expiration, response_body[:internet_expiration]
       openssl_legacy_provider = OpenSSL::Provider.load('legacy')
diff --git a/test/controllers/sessions_controller_local_login_test.rb b/test/controllers/sessions_controller_local_login_test.rb
index 29e1109f..a889f638 100644
--- a/test/controllers/sessions_controller_local_login_test.rb
+++ b/test/controllers/sessions_controller_local_login_test.rb
@@ -10,7 +10,6 @@ def setup
                                            info: { first_name: 'John',
                                                    last_name: 'Doe',
                                                    email: 'john@doe.com',
-                                                   room: 'F123',
                                                    groups: 'rezoleo',
                                                    username: 'john-doe' } })
   end
@@ -22,7 +21,7 @@ def setup
   end
 
   test 'should find user if already exists' do
-    User.create(firstname: 'John', lastname: 'Doe', email: 'john@doe.com', room: 'F123', username: 'john-doe')
+    User.create(firstname: 'John', lastname: 'Doe', email: 'john@doe.com', username: 'john-doe')
 
     assert_difference 'User.count', 0 do
       get auth_callback_developer_path
diff --git a/test/controllers/sessions_controller_test.rb b/test/controllers/sessions_controller_test.rb
index 33e5d1b2..a353a29c 100644
--- a/test/controllers/sessions_controller_test.rb
+++ b/test/controllers/sessions_controller_test.rb
@@ -20,7 +20,7 @@ def setup
   end
 
   test 'should find user if already exists' do
-    User.create(firstname: 'John', lastname: 'Doe', email: 'john@doe.com', room: 'F123', username: 'john-doe',
+    User.create(firstname: 'John', lastname: 'Doe', email: 'john@doe.com', username: 'john-doe',
                 oidc_id: '111111111111111111')
 
     assert_difference 'User.count', 0 do
diff --git a/test/controllers/users_controller_test.rb b/test/controllers/users_controller_test.rb
index 74454a03..431f45d0 100644
--- a/test/controllers/users_controller_test.rb
+++ b/test/controllers/users_controller_test.rb
@@ -22,7 +22,7 @@ def setup
     get user_path @user
     assert_template 'users/show'
     assert_match @user.email, @response.body
-    assert_match @user.room, @response.body
+    assert_match @user.room.number, @response.body
   end
 
   test 'should get new' do
@@ -37,13 +37,14 @@ def setup
           firstname: 'patrick',
           lastname: 'bar',
           email: 'patrick@bar.com',
-          room: 'E124',
-          username: 'patrick-bar'
+          username: 'patrick-bar',
+          room_number: 'E124'
         }
       }
     end
     user = User.find_by(email: 'patrick@bar.com')
     assert_redirected_to user
+    assert_equal 'E124', user.room.number
   end
 
   test 'should re-render new if user is invalid with html' do
@@ -62,11 +63,12 @@ def setup
         firstname: 'toto',
         lastname: 'titi',
         email: 'toto@titi.tu',
-        room: 'B231',
-        username: 'toto-titi'
+        username: 'toto-titi',
+        room_number: 'B231'
       }
     }
     assert_redirected_to @user.reload
+    assert_equal 'B231', @user.room.number
   end
 
   test 'should re-render edit if updates are invalid with html' do
diff --git a/test/controllers/users_controller_user_right_test.rb b/test/controllers/users_controller_user_right_test.rb
index 828e9863..b99650c1 100644
--- a/test/controllers/users_controller_user_right_test.rb
+++ b/test/controllers/users_controller_user_right_test.rb
@@ -15,7 +15,6 @@ def setup
 
     get users_path
     assert_select 'a.user', count: 1
-    assert_select 'li', text: Regexp.new(@user.room)
   end
 
   test 'non-admin user should not see someone else in show' do
diff --git a/test/fixtures/rooms.yml b/test/fixtures/rooms.yml
new file mode 100644
index 00000000..75b974bf
--- /dev/null
+++ b/test/fixtures/rooms.yml
@@ -0,0 +1,45 @@
+# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
+
+room_a105a:
+  number: "A105A"
+  group: "A105"
+  building: "A"
+  floor: 1
+
+room_a109a:
+  number: "A109A"
+  group: "A109"
+  building: "A"
+  floor: 1
+  user: ironman
+
+room_a201:
+  number: "A201"
+  group: "A201"
+  building: "A"
+  floor: 2
+  user: pepper
+
+room_b231:
+  number: "B231"
+  group: "B231"
+  building: "B"
+  floor: 2
+
+room_e124:
+  number: "E124"
+  group: "E124"
+  building: "E"
+  floor: 1
+
+room_f123:
+  number: "F123"
+  group: "F123"
+  building: "F"
+  floor: 1
+
+room_df1:
+  number: "DF1"
+  group: "DF"
+  building: "D"
+  floor: 0
diff --git a/test/fixtures/users.yml b/test/fixtures/users.yml
index 91522077..855fe6a0 100644
--- a/test/fixtures/users.yml
+++ b/test/fixtures/users.yml
@@ -4,7 +4,6 @@ ironman:
   firstname: "Tony"
   lastname: "Stark"
   email: "tony@avengers.com"
-  room: "A200"
   oidc_id: "340191509840366893"
   wifi_password: "12345"
   username: "ironman"
@@ -13,7 +12,6 @@ pepper:
   firstname: "Pepper"
   lastname: "Potts"
   email: "pepper@potts.com"
-  room: "A201"
   oidc_id: "923403309843419676"
   wifi_password: "123456"
   username: "pepper"
@@ -24,4 +22,4 @@ spiderman:
   email: "peterp@univ.edu"
   oidc_id: "326906230427557669"
   wifi_password: "1234567"
-  username: "peter.parker"
+  username: "peter-parker"
diff --git a/test/jobs/sync_room_to_sso_job_test.rb b/test/jobs/sync_room_to_sso_job_test.rb
new file mode 100644
index 00000000..f11d466c
--- /dev/null
+++ b/test/jobs/sync_room_to_sso_job_test.rb
@@ -0,0 +1,39 @@
+# frozen_string_literal: true
+
+require 'test_helper'
+
+class SyncRoomToSsoJobTest < ActiveJob::TestCase
+  test 'performs sync for existing user' do
+    user = users(:ironman)
+    output = StringIO.new
+    logger = ActiveSupport::Logger.new(output)
+    old_logger = Rails.logger
+
+    Rails.logger = logger
+    begin
+      SyncRoomToSsoJob.perform_now(user.id)
+    ensure
+      Rails.logger = old_logger
+    end
+
+    assert_includes output.string, '[SSO] Dry-run: would sync room'
+  end
+
+  test 'does nothing when user does not exist' do
+    missing_user_id = User.maximum(:id).to_i + 1
+    output = StringIO.new
+    logger = ActiveSupport::Logger.new(output)
+    old_logger = Rails.logger
+
+    Rails.logger = logger
+    begin
+      assert_nothing_raised do
+        SyncRoomToSsoJob.perform_now(missing_user_id)
+      end
+    ensure
+      Rails.logger = old_logger
+    end
+
+    assert_not_includes output.string, '[SSO] Dry-run: would sync room'
+  end
+end
diff --git a/test/models/room_test.rb b/test/models/room_test.rb
new file mode 100644
index 00000000..68551b50
--- /dev/null
+++ b/test/models/room_test.rb
@@ -0,0 +1,158 @@
+# frozen_string_literal: true
+
+require 'test_helper'
+
+class RoomTest < ActiveSupport::TestCase
+  include ActiveJob::TestHelper
+
+  def setup
+    super
+    @room = rooms(:room_a105a)
+  end
+
+  test 'room is valid' do
+    assert_predicate @room, :valid?
+  end
+
+  test 'number must be present' do
+    @room.number = nil
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'number must be unique' do
+    duplicate = @room.dup
+    assert_not_predicate duplicate, :valid?
+  end
+
+  test 'number must be at most 6 characters' do
+    @room.number = 'A123456'
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'number must be uppercase alphanumeric' do
+    @room.number = 'a105a'
+    assert_not_predicate @room, :valid?
+
+    @room.number = 'A1-5'
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'group must be present' do
+    @room.group = nil
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'group must be at most 6 characters' do
+    @room.group = 'A123456'
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'group must be uppercase alphanumeric' do
+    @room.group = 'a105'
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'building must be between A and F' do
+    ('A'..'F').each do |b|
+      @room.building = b
+      assert_predicate @room, :valid?, "Building #{b} should be valid"
+    end
+
+    @room.building = 'G'
+    assert_not_predicate @room, :valid?
+
+    @room.building = nil
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'floor must be between 0 and 3' do
+    (0..3).each do |f|
+      @room.floor = f
+      assert_predicate @room, :valid?, "Floor #{f} should be valid"
+    end
+
+    @room.floor = 4
+    assert_not_predicate @room, :valid?
+
+    @room.floor = -1
+    assert_not_predicate @room, :valid?
+
+    @room.floor = nil
+    assert_not_predicate @room, :valid?
+  end
+
+  test 'belongs_to user association' do
+    room = rooms(:room_a109a)
+    assert_equal users(:ironman), room.user
+  end
+
+  test 'user_id must be unique when not nil' do
+    room = rooms(:room_b231)
+    room.user = users(:ironman)
+    assert_not_predicate room, :valid?
+    assert_includes room.errors[:user_id], 'has already been taken'
+  end
+
+  test 'multiple rooms can have nil user' do
+    room1 = rooms(:room_a105a)
+    room2 = rooms(:room_b231)
+    assert_nil room1.user
+    assert_nil room2.user
+    assert_predicate room1, :valid?
+    assert_predicate room2, :valid?
+  end
+
+  test 'room without user can be destroyed' do
+    room = rooms(:room_a105a)
+    assert room.destroy
+  end
+
+  test 'room with user can be destroyed and nullifies user association' do
+    room = rooms(:room_a109a)
+    user = room.user
+    assert room.destroy
+    user.reload
+    assert_nil user.room
+  end
+
+  test 'available_for returns rooms not occupied by other users' do
+    user = users(:ironman)
+    available = Room.available_for(user)
+
+    # Should include the user's own room
+    assert_includes available.map(&:number), user.room.number
+
+    # Should not include other users' rooms
+    assert_not_includes available.map(&:number), users(:pepper).room.number
+
+    # Should include unoccupied rooms
+    assert_includes available.map(&:number), rooms(:room_a105a).number
+  end
+
+  test 'changing user_id enqueues room sync job for new user' do
+    room = rooms(:room_a105a)
+    user = users(:spiderman)
+
+    assert_enqueued_with(job: SyncRoomToSsoJob, args: [user.id]) do
+      room.update!(user: user)
+    end
+  end
+
+  test 'changing user_id enqueues room sync job for previous user' do
+    room = rooms(:room_a109a)
+    room.user
+    new_user = users(:spiderman)
+    assert_enqueued_jobs(2, only: SyncRoomToSsoJob) do
+      room.update!(user: new_user)
+    end
+  end
+
+  test 'removing user_id enqueues room sync job for previous user' do
+    room = rooms(:room_a109a)
+    old_user = room.user
+
+    assert_enqueued_with(job: SyncRoomToSsoJob, args: [old_user.id]) do
+      room.update!(user: nil)
+    end
+  end
+end
diff --git a/test/models/user_test.rb b/test/models/user_test.rb
index 6a6c4fe0..6ad81a13 100644
--- a/test/models/user_test.rb
+++ b/test/models/user_test.rb
@@ -3,6 +3,8 @@
 require 'test_helper'
 
 class UserTest < ActiveSupport::TestCase
+  include ActiveJob::TestHelper
+
   def setup
     super
     @user = users(:ironman)
@@ -68,49 +70,13 @@ def setup
   end
 
   test 'room can be nil' do
-    @user.room = nil
-    assert_predicate @user, :valid?
+    user = users(:spiderman)
+    assert_nil user.room
+    assert_predicate user, :valid?
   end
 
-  test 'room should be unique when not nil' do
-    duplicate_user = @user.dup
-    duplicate_user.email = 'different@email.com'
-    duplicate_user.username = 'different-username'
-    @user.save
-    duplicate_user.room.downcase!
-    assert_not_predicate duplicate_user, :valid?
-  end
-
-  test 'multiple users can have nil room' do
-    @user.room = nil
-    another_user = @user.dup
-    another_user.email = 'different@email.com'
-    another_user.username = 'different-username'
-    another_user.room = nil
-    @user.save
-    assert_predicate another_user, :valid?
-  end
-
-  test 'room should be formatted on save' do
-    @user.room = 'a108B'
-    @user.save
-    assert_equal 'A108b', @user.room
-    # TODO: Add tests to check that we strip rooms, and that we keep uppercase on 'DF1'
-  end
-
-  test 'room must be of a valid format' do
-    valid_rooms = ['A205', 'B134a', 'C001b', 'F313', 'D111b', 'E231a', 'DF1', 'DF2', 'DF3', 'DF4']
-    invalid_rooms = ['A2005', 'C404', 'D111c', 'B1', 'E22', 'G207']
-
-    valid_rooms.each do |valid_room|
-      @user.room = valid_room
-      assert_predicate @user, :valid?, "#{valid_room} should be valid"
-    end
-
-    invalid_rooms.each do |invalid_room|
-      @user.room = invalid_room
-      assert_not_predicate @user, :valid?, "#{invalid_room} should be invalid"
-    end
+  test 'user can have a room association' do
+    assert_equal rooms(:room_a109a), @user.room
   end
 
   test "username can't be empty" do
@@ -180,7 +146,6 @@ def setup
 
   test 'should update existing user from auth hash' do
     @user.update(oidc_id: '111111111111111111')
-    original_room = @user.room
     @user.save
 
     User.upsert_from_auth_hash(@auth_hash)
@@ -189,7 +154,6 @@ def setup
     assert_equal 'John', @user.firstname
     assert_equal 'Doe', @user.lastname
     assert_equal 'john@doe.com', @user.email
-    assert_equal original_room, @user.room
     assert_equal '111111111111111111', @user.oidc_id
   end
 
diff --git a/test/services/sso_metadata_service_test.rb b/test/services/sso_metadata_service_test.rb
new file mode 100644
index 00000000..fdcdf85d
--- /dev/null
+++ b/test/services/sso_metadata_service_test.rb
@@ -0,0 +1,114 @@
+# frozen_string_literal: true
+
+require 'test_helper'
+
+class SsoMetadataServiceTest < ActiveSupport::TestCase
+  def setup
+    super
+
+    @user = users(:ironman)
+    Rails.application.credentials.sso_lea5_pat = 'test-pat-token'
+  end
+
+  test 'sync_room skips user without oidc_id' do
+    @user.oidc_id = nil
+    assert_nothing_raised do
+      SsoMetadataService.new.sync_room(@user)
+    end
+  end
+
+  test 'sync_room does not call SSO in non-production' do
+    assert_not_equal 'production', Rails.env
+
+    SsoMetadataService.new.sync_room(@user)
+  end
+
+  test 'sync_room pushes metadata in production' do
+    room_number = @user.room.number
+    stub = WebMock.stub_request(:post, "https://sso.rezoleo.fr/v2/users/#{@user.oidc_id}/metadata")
+                  .with(
+                    headers: { 'Authorization' => 'Bearer test-pat-token', 'Content-Type' => 'application/json' },
+                    body: {
+                      metadata: [{ key: 'room', value: Base64.strict_encode64(room_number) }]
+                    }.to_json
+                  )
+                  .to_return(status: 200, body: '{"setDate":"2026-01-01T00:00:00Z"}')
+
+    ProductionSsoService.new.sync_room(@user)
+    assert_requested(stub)
+  end
+
+  test 'sync_room sends DELETE when user has no room' do
+    user = users(:spiderman) # User without a room
+
+    stub = WebMock.stub_request(:delete, "https://sso.rezoleo.fr/v2/users/#{user.oidc_id}/metadata")
+                  .with(query: { 'keys' => 'room' })
+                  .to_return(status: 200, body: '{"deletionDate":"2026-01-01T00:00:00Z"}')
+
+    ProductionSsoService.new.sync_room(user)
+    assert_requested(stub)
+  end
+
+  test 'sync_room does not raise on POST HTTP failure' do
+    WebMock.stub_request(:post, "https://sso.rezoleo.fr/v2/users/#{@user.oidc_id}/metadata")
+           .to_return(status: 500, body: 'Internal Server Error')
+
+    assert_nothing_raised do
+      ProductionSsoService.new.sync_room(@user)
+    end
+  end
+
+  test 'sync_room raises on POST network exception' do
+    WebMock.stub_request(:post, "https://sso.rezoleo.fr/v2/users/#{@user.oidc_id}/metadata")
+           .to_raise(Errno::ECONNREFUSED)
+
+    assert_raises(Errno::ECONNREFUSED) do
+      ProductionSsoService.new.sync_room(@user)
+    end
+  end
+
+  test 'sync_room does not raise on DELETE HTTP failure' do
+    user = users(:spiderman) # User without a room
+
+    WebMock.stub_request(:delete, "https://sso.rezoleo.fr/v2/users/#{user.oidc_id}/metadata")
+           .with(query: { 'keys' => 'room' })
+           .to_return(status: 500, body: 'Internal Server Error')
+
+    assert_nothing_raised do
+      ProductionSsoService.new.sync_room(user)
+    end
+  end
+
+  test 'sync_room raises on DELETE network exception' do
+    user = users(:spiderman) # User without a room
+
+    WebMock.stub_request(:delete, "https://sso.rezoleo.fr/v2/users/#{user.oidc_id}/metadata")
+           .with(query: { 'keys' => 'room' })
+           .to_raise(Errno::ECONNREFUSED)
+
+    assert_raises(Errno::ECONNREFUSED) do
+      ProductionSsoService.new.sync_room(user)
+    end
+  end
+
+  test 'sync_room raises on timeout' do
+    user = users(:spiderman) # User without a room
+
+    WebMock.stub_request(:delete, "https://sso.rezoleo.fr/v2/users/#{user.oidc_id}/metadata")
+           .with(query: { 'keys' => 'room' })
+           .to_raise(Net::ReadTimeout.new)
+
+    assert_raises(Net::ReadTimeout) do
+      ProductionSsoService.new.sync_room(user)
+    end
+  end
+end
+
+# Test subclass that overrides production? to always return true
+class ProductionSsoService < SsoMetadataService
+  private
+
+  def production?
+    true
+  end
+end
diff --git a/test/tasks/sync_accounts_test.rb b/test/tasks/sync_accounts_test.rb
index 34c376d5..47d76e7d 100644
--- a/test/tasks/sync_accounts_test.rb
+++ b/test/tasks/sync_accounts_test.rb
@@ -18,14 +18,12 @@ def setup
     ZitadelStub.stub_list_users
 
     tony = User.find_by(email: 'tony@avengers.com')
-    original_room = tony.room
 
     assert_difference 'User.count', -1 do
       Rake::Task['lea5:sync_accounts'].invoke
     end
 
     tony.reload
-    assert_equal original_room, tony.room
   end
 end