diff --git a/Hotel/Hotel.sln b/Hotel/Hotel.sln
index 6a1b54d..4814a5e 100644
--- a/Hotel/Hotel.sln
+++ b/Hotel/Hotel.sln
@@ -5,6 +5,8 @@ VisualStudioVersion = 17.3.32825.248
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HotelView", "HotelView\HotelView.csproj", "{1A83AECA-64B1-4CD7-9A5D-2EE6C9B5C393}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "HotelDataModels", "HotelDataModels\HotelDataModels.csproj", "{08223741-597B-416D-8357-49E61B9C8AC0}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{1A83AECA-64B1-4CD7-9A5D-2EE6C9B5C393}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1A83AECA-64B1-4CD7-9A5D-2EE6C9B5C393}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1A83AECA-64B1-4CD7-9A5D-2EE6C9B5C393}.Release|Any CPU.Build.0 = Release|Any CPU
+		{08223741-597B-416D-8357-49E61B9C8AC0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{08223741-597B-416D-8357-49E61B9C8AC0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{08223741-597B-416D-8357-49E61B9C8AC0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{08223741-597B-416D-8357-49E61B9C8AC0}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/Hotel/HotelDataModels/HotelDataModels.csproj b/Hotel/HotelDataModels/HotelDataModels.csproj
new file mode 100644
index 0000000..c68ed43
--- /dev/null
+++ b/Hotel/HotelDataModels/HotelDataModels.csproj
@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="Models\" />
+  </ItemGroup>
+
+</Project>
diff --git a/Hotel/HotelDataModels/IId.cs b/Hotel/HotelDataModels/IId.cs
new file mode 100644
index 0000000..aeae8a9
--- /dev/null
+++ b/Hotel/HotelDataModels/IId.cs
@@ -0,0 +1,7 @@
+namespace HotelDataModels
+{
+    public interface IId
+    {
+        int Id { get; }
+    }
+}
\ No newline at end of file