diff --git a/build/NuSpecs/buildTransitive/Umbraco.Cms.StaticAssets.targets b/build/NuSpecs/buildTransitive/Umbraco.Cms.StaticAssets.targets
index d271653e44..f9ee41e139 100644
--- a/build/NuSpecs/buildTransitive/Umbraco.Cms.StaticAssets.targets
+++ b/build/NuSpecs/buildTransitive/Umbraco.Cms.StaticAssets.targets
@@ -6,6 +6,16 @@
         <UmbracoWwwrootName Condition="'$(UmbracoWwwrootName)' == ''">umbraco</UmbracoWwwrootName>
     </PropertyGroup>
 
+    <PropertyGroup>
+        <DefaultItemExcludes>$(DefaultItemExcludes);App_Plugins\**;</DefaultItemExcludes>
+
+        <DefaultItemExcludes>$(DefaultItemExcludes);umbraco\Data\**;</DefaultItemExcludes>
+        <DefaultItemExcludes>$(DefaultItemExcludes);umbraco\Logs\**;</DefaultItemExcludes>
+        <DefaultItemExcludes>$(DefaultItemExcludes);umbraco\mediacache\**;</DefaultItemExcludes>
+
+        <DefaultItemExcludes>$(DefaultItemExcludes);wwwroot\media\**;</DefaultItemExcludes>
+    </PropertyGroup>
+
     <Target Name="CopyUmbracoAssets" BeforeTargets="BeforeBuild">
         <ItemGroup>
             <ContentFiles Include="$(ContentFilesPath)" />
@@ -21,7 +31,42 @@
             SourceFiles="@(ContentWwwrootFiles)"
             DestinationFiles="@(ContentWwwrootFiles->'$(MSBuildProjectDirectory)\wwwroot\$(UmbracoWwwrootName)\%(RecursiveDir)%(Filename)%(Extension)')"
             SkipUnchangedFiles="true" />
+    </Target>
 
+    <Target Name="IncludeAppPluginsContent" BeforeTargets="GetCopyToOutputDirectoryItems">
+        <ItemGroup>
+            <_AppPluginsFiles Include="App_Plugins\**" />
+
+            <ContentWithTargetPath
+                Include="@(_AppPluginsFiles)"
+                TargetPath="%(Identity)"
+                CopyToOutputDirectory="Always" />
+        </ItemGroup>
+    </Target>
+
+    <!-- 
+        The set of files to publish is generated really early and doesn't currently account for files added by targets e.g. BeforeBuild.
+        A fix was put in place in Web SDK to update for wwwwroot in case someone runs npm build etc in a target, we're borrowing their trick.
+        https://github.com/dotnet/sdk/blob/e2b2b1a4ac56c955b84d62fe71cda3b6f258b42b/src/WebSdk/Publish/Targets/ComputeTargets/Microsoft.NET.Sdk.Publish.ComputeFiles.targets
+     -->
+    <Target Name="IncludeUmbracoFolderContent" BeforeTargets="GetCopyToOutputDirectoryItems">
+        <ItemGroup>
+            <_UmbracoFolderFiles Include="umbraco\config\**" />
+            <_UmbracoFolderFiles Include="umbraco\PartialViewMacros\**" />
+            <_UmbracoFolderFiles Include="umbraco\UmbracoBackOffice\**" />
+            <_UmbracoFolderFiles Include="umbraco\UmbracoInstall\**" />
+            <_UmbracoFolderFiles Include="umbraco\UmbracoWebsite\**" />
+            <_UmbracoFolderFiles Include="umbraco\UmbracoWebsite\**" />
+            <_UmbracoFolderFiles Include="umbraco\Licenses\**" />
+
+            <!-- This could be handled in deploy if it's not already -->
+            <_UmbracoFolderFiles Include="umbraco\Deploy\**" />
+
+            <ContentWithTargetPath
+                Include="@(_UmbracoFolderFiles)"
+                TargetPath="%(Identity)"
+                CopyToOutputDirectory="Always" />
+        </ItemGroup>
     </Target>
 
     <Target Name="ClearUmbracoAssets" BeforeTargets="Clean">
diff --git a/build/templates/UmbracoProject/UmbracoProject.csproj b/build/templates/UmbracoProject/UmbracoProject.csproj
index 99e72bae0f..1b3290927d 100644
--- a/build/templates/UmbracoProject/UmbracoProject.csproj
+++ b/build/templates/UmbracoProject/UmbracoProject.csproj
@@ -3,9 +3,6 @@
     <PropertyGroup>
         <TargetFramework>net5.0</TargetFramework>
         <RootNamespace Condition="'$(name)' != '$(name{-VALUE-FORMS-}safe_namespace)'">Umbraco.Cms.Web.UI</RootNamespace>
-        <DefaultItemExcludes>$(DefaultItemExcludes);App_Plugins/**;</DefaultItemExcludes>
-        <DefaultItemExcludes>$(DefaultItemExcludes);umbraco/**;</DefaultItemExcludes>
-        <DefaultItemExcludes>$(DefaultItemExcludes);wwwroot/media/**;</DefaultItemExcludes>
     </PropertyGroup>
 
     <!-- Force windows to use ICU. Otherwise Windows 10 2019H1+ will do it, but older windows 10 and most if not all winodws servers will run NLS -->
@@ -26,16 +23,6 @@
         <ProjectReference Include="..\PackageTestSiteName\PackageTestSiteName.csproj" />
     </ItemGroup>
 
-    <ItemGroup>
-        <Content Include="App_Plugins/**" CopyToOutputDirectory="Always" />
-        <Content Include="umbraco/**" CopyToOutputDirectory="Always" />
-        <Content Remove="umbraco/Data/**" />
-        <Content Remove="umbraco/Logs/**" />
-        <Content Remove="umbraco/mediacache/**" />
-        <Content Remove="umbraco/models/**" />
-        <Compile Include="umbraco/models/**" Exclude="**/*.flag" />
-    </ItemGroup>
-
     <PropertyGroup>
         <CopyRazorGenerateFilesToPublishDirectory>true</CopyRazorGenerateFilesToPublishDirectory>
     </PropertyGroup>