diff --git a/src/Web/AdminPanel/MUnique.OpenMU.Web.AdminPanel.csproj b/src/Web/AdminPanel/MUnique.OpenMU.Web.AdminPanel.csproj
index 59a7d88ac..b27f7cdc2 100644
--- a/src/Web/AdminPanel/MUnique.OpenMU.Web.AdminPanel.csproj
+++ b/src/Web/AdminPanel/MUnique.OpenMU.Web.AdminPanel.csproj
@@ -6,6 +6,12 @@
     <WarningsAsErrors>nullable;CS4014;VSTHRD110;VSTHRD100</WarningsAsErrors>
     <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+    <!-- Set base path for static web assets to avoid conflicts when referenced by other web apps.
+         Required for .NET 10+ where WebApp-to-WebApp references are unsupported.
+         Also resolves asset path conflicts in .NET 9 when AdminPanel and Map both have wwwroot/css/site.css.
+         Note: Standalone Program.cs in this project won't serve assets correctly.
+         Use Startup or AdminPanel.Host projects to run the admin panel. -->
+    <StaticWebAssetBasePath>_content/$(MSBuildProjectName)</StaticWebAssetBasePath>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Web/Map/MUnique.OpenMU.Web.Map.csproj b/src/Web/Map/MUnique.OpenMU.Web.Map.csproj
index 752906b59..d65660477 100644
--- a/src/Web/Map/MUnique.OpenMU.Web.Map.csproj
+++ b/src/Web/Map/MUnique.OpenMU.Web.Map.csproj
@@ -9,6 +9,12 @@
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <GenerateDocumentationFile>True</GenerateDocumentationFile>
     <DocumentationFile></DocumentationFile>
+    <!-- Set base path for static web assets to avoid conflicts when referenced by other web apps.
+         Required for .NET 10+ where WebApp-to-WebApp references are unsupported.
+         Also resolves asset path conflicts in .NET 9 when AdminPanel and Map both have wwwroot/css/site.css.
+         Note: Standalone Program.cs in this project won't serve assets correctly.
+         Use GameServer.Host project to run the map viewer. -->
+    <StaticWebAssetBasePath>_content/$(MSBuildProjectName)</StaticWebAssetBasePath>
 
     <!--UseRazorSourceGenerator>false</UseRazorSourceGenerator-->
   </PropertyGroup>