diff --git a/Directory.Build.props b/Directory.Build.props
index c1ce790ad1a9..49b7b757a3f8 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -242,6 +242,37 @@
     <ArchiveExtension Condition="'$(TargetOsName)' == 'win'">.zip</ArchiveExtension>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <OfficialBaseURL>https://dotnetcli.azureedge.net/dotnet/</OfficialBaseURL>
+    <!-- Allow overriding the public base URL for Unified Build scenarios to pull assets from a local build. -->
+    <PublicBaseURL Condition="'$(PublicBaseURL)' == ''">https://dotnetbuilds.azureedge.net/public/</PublicBaseURL>
+    <InternalBaseURL>https://dotnetbuilds.azureedge.net/internal/</InternalBaseURL>
+    <!-- Allow overriding where installers are pulled in from previously completed jobs in Unified Build scenarios. -->
+    <CrossArchitectureInstallerBasePath Condition="'$(CrossArchitectureInstallerBasePath)' == ''">$(InstallersOutputPath)</CrossArchitectureInstallerBasePath>
+  </PropertyGroup>
+
+  <!-- Try various places to find the runtime. It's either released (use official version),
+        public but un-released (use dotnetbuilds/public), or internal and unreleased (use dotnetbuilds/internal) -->
+  <ItemGroup Condition="'$(DotNetBuild) ' != 'true'">
+    <RemoteAssetBaseURL Include="$(OfficialBaseURL)" />
+    <RemoteAssetBaseURL Include="$(PublicBaseURL)" />
+    <!-- Include the token here as we'll generate the URLs to download based on this item group. -->
+    <RemoteAssetBaseURL Include="$(InternalBaseURL)"
+                        Condition=" '$(DotnetRuntimeSourceFeedKey)' != '' ">
+      <token>$(DotnetRuntimeSourceFeedKey)</token>
+    </RemoteAssetBaseURL>
+  </ItemGroup>
+
+  <!--
+    Only try downloading from the "public" base URL when doing a vertical build.
+    In a vertical build, the public URL will be overwritten to point to local build artifacts.
+  -->
+  <ItemGroup Condition="'$(DotNetBuild)' == 'true'">
+    <!-- MSBuild removes the '//' slashes when passing PublicBaseURL from the outer to the inner build. -->
+    <RemoteAssetBaseURL Condition="$(PublicBaseURL.StartsWith('file:')) and '$(OS)' != 'Windows_NT'" Include="$([System.Text.RegularExpressions.Regex]::Replace('$(PublicBaseURL)', '%28file:\/{1,}%29%28.+%29', 'file:///%242'))" />
+    <RemoteAssetBaseURL Condition="!$(PublicBaseURL.StartsWith('file:')) or '$(OS)' == 'Windows_NT'" Include="$(PublicBaseURL)" />
+  </ItemGroup>
+
   <PropertyGroup>
     <!-- PackageReadmeFile specifies the package readme file name in the package. PackageReadmeFilePath points to the package readme file on disk. -->
     <EnableDefaultPackageReadmeFile Condition="'$(EnableDefaultPackageReadmeFile)' == '' and '$(IsShipping)' != 'false'">true</EnableDefaultPackageReadmeFile>
diff --git a/eng/Build.props b/eng/Build.props
index 57f53a3ce17b..b6a70dfd94ee 100644
--- a/eng/Build.props
+++ b/eng/Build.props
@@ -71,7 +71,13 @@
       </ItemGroup>
     </When>
     <Otherwise>
-      <ItemGroup Condition=" '$(BuildInstallers)' == 'true' AND '$(TargetOsName)' == 'win' AND ('$(TargetArchitecture)' == 'x86' OR '$(TargetArchitecture)' == 'x64' OR '$(TargetArchitecture)' == 'arm64') ">
+      <PropertyGroup>
+        <_BuildWindowsInstallers Condition="'$(BuildInstallers)' == 'true' AND '$(TargetOsName)' == 'win' AND ('$(TargetArchitecture)' == 'x86' OR '$(TargetArchitecture)' == 'x64' OR '$(TargetArchitecture)' == 'arm64') ">true</_BuildWindowsInstallers>
+        <_WixTargetPlatform Condition="'$(TargetArchitecture)' == 'x86' ">Win32</_WixTargetPlatform>
+        <_WixTargetPlatform Condition="'$(TargetArchitecture)' == 'x64' ">x64</_WixTargetPlatform>
+        <_WixTargetPlatform Condition="'$(TargetArchitecture)' == 'arm64' ">ARM64</_WixTargetPlatform>
+      </PropertyGroup>
+      <ItemGroup Condition="'$(DotNetBuild)' != 'true' and '$(_BuildWindowsInstallers)' == 'true' ">
         <!-- Build the ANCM custom action -->
         <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\AspNetCoreModule-Setup\CustomAction\aspnetcoreCA.vcxproj" AdditionalProperties="Platform=x64" />
         <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\AspNetCoreModule-Setup\CustomAction\aspnetcoreCA.vcxproj" AdditionalProperties="Platform=Win32" />
@@ -103,7 +109,26 @@
         <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\SharedFrameworkLib\SharedFrameworkLib.wixproj" AdditionalProperties="Platform=x86" />
         <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\SharedFrameworkLib\SharedFrameworkLib.wixproj" AdditionalProperties="Platform=arm64" />
 
-        <!-- Windows hosting bundled -->
+        <!-- Windows hosting bundle -->
+        <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\WindowsHostingBundle\WindowsHostingBundle.wixproj" AdditionalProperties="Platform=x86" />
+      </ItemGroup>
+
+      <!-- In a vertical build, only build the MSIs for the current vertical in the first pass and build the hosting bundle in the second pass -->
+      <ItemGroup Condition="'$(DotNetBuild)' == 'true' and ('$(DotNetBuildPass)' == '' or '$(DotNetBuildPass)' == '1') and '$(_BuildWindowsInstallers)' == 'true'">
+        <!-- Build the ANCM custom action -->
+        <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\AspNetCoreModule-Setup\CustomAction\aspnetcoreCA.vcxproj" AdditionalProperties="Platform=$(_WixTargetPlatform)" />
+        <!-- Build the ANCM msis -->
+        <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\AspNetCoreModule-Setup\ANCMIISExpressV2\AncmIISExpressV2.wixproj" AdditionalProperties="Platform=$(_WixTargetPlatform)" />
+        <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\AspNetCoreModule-Setup\ANCMV2\ANCMV2.wixproj" AdditionalProperties="Platform=$(_WixTargetPlatform)" />
+        <!-- Build the targeting pack installers -->
+        <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\TargetingPack\TargetingPack.wixproj" AdditionalProperties="Platform=$(_WixTargetPlatform)" />
+        <!-- Build the SharedFramework installers -->
+        <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\SharedFrameworkBundle\SharedFrameworkBundle.wixproj" AdditionalProperties="Platform=$(_WixTargetPlatform)" />
+        <!-- Build the SharedFramework wixlib -->
+        <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\SharedFrameworkLib\SharedFrameworkLib.wixproj" AdditionalProperties="Platform=$(_WixTargetPlatform)" />
+      </ItemGroup>
+
+      <ItemGroup Condition="'$(DotNetBuild)' == 'true' and ('$(DotNetBuildPass)' == '2') and '$(BuildInstallers)' == 'true' AND '$(TargetOsName)' == 'win' and '$(TargetArchitecture)' == 'x64'">
         <ProjectToBuild Include="$(RepoRoot)src\Installers\Windows\WindowsHostingBundle\WindowsHostingBundle.wixproj" AdditionalProperties="Platform=x86" />
       </ItemGroup>
 
diff --git a/src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.csproj b/src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.csproj
index 48725d72139d..4907647519ee 100644
--- a/src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.csproj
+++ b/src/Framework/App.Runtime/src/Microsoft.AspNetCore.App.Runtime.csproj
@@ -556,16 +556,9 @@ This package is an internal implementation of the .NET Core SDK and is not meant
   Targets related to creating .zip/.tar.gz
   #########################################
   -->
-  <Target Name="_DownloadAndExtractDotNetRuntime" Condition="'$(DotNetBuild)' != 'true'">
-    <!-- Try various places to find the runtime. It's either released (use official version),
-         public but un-released (use dotnetbuilds/public), or internal and unreleased (use dotnetbuilds/internal) -->
+  <Target Name="_DownloadAndExtractDotNetRuntime">
     <ItemGroup>
-      <UrisToDownload Include="https://dotnetcli.azureedge.net/dotnet/$(DotNetRuntimeDownloadPath)" />
-      <UrisToDownload Include="https://dotnetbuilds.azureedge.net/public/$(DotNetRuntimeDownloadPath)" />
-      <UrisToDownload Include="https://dotnetbuilds.azureedge.net/internal/$(DotNetRuntimeDownloadPath)"
-          Condition=" '$(DotnetRuntimeSourceFeedKey)' != '' ">
-        <token>$(DotnetRuntimeSourceFeedKey)</token>
-      </UrisToDownload>
+      <UrisToDownload Include="@(RemoteAssetBaseURL->'%(Identity)$(DotNetRuntimeDownloadPath)')" />
     </ItemGroup>
 
     <DownloadFile Condition=" !Exists('$(DotNetRuntimeArchive)') "
diff --git a/src/Installers/Windows/WindowsHostingBundle/Product.targets b/src/Installers/Windows/WindowsHostingBundle/Product.targets
index 3b1cf82c1076..f47da829492e 100644
--- a/src/Installers/Windows/WindowsHostingBundle/Product.targets
+++ b/src/Installers/Windows/WindowsHostingBundle/Product.targets
@@ -77,18 +77,12 @@
 
   <Target Name="FetchDependencies" BeforeTargets="Restore;CollectPackageReferences"
       Outputs="$(DepsPath)%(RemoteAsset.TargetFilename)">
-    <!--
-      Try various places to find the runtime. It's either released (use official version), public but
-      unreleased (use dotnetbuilds/public), or internal and unreleased (use dotnetbuilds/internal).
-    -->
+    <PropertyGroup>
+      <_CurrentRemoteAsset>%(RemoteAsset.Identity)</_CurrentRemoteAsset>
+    </PropertyGroup>
     <ItemGroup>
       <UrisToDownload Remove="@(UrisToDownload)" />
-      <UrisToDownload Include="https://dotnetcli.azureedge.net/dotnet/Runtime/%(RemoteAsset.Identity)" />
-      <UrisToDownload Include="https://dotnetbuilds.azureedge.net/public/Runtime/%(RemoteAsset.Identity)" />
-      <UrisToDownload Include="https://dotnetbuilds.azureedge.net/internal/Runtime/%(RemoteAsset.Identity)"
-          Condition=" '$(DotnetRuntimeSourceFeedKey)' != '' ">
-        <token>$(DotnetRuntimeSourceFeedKey)</token>
-      </UrisToDownload>
+      <UrisToDownload Include="@(RemoteAssetBaseURL->'%(Identity)Runtime/$(_CurrentRemoteAsset)')" />
     </ItemGroup>
 
     <DownloadFile Condition=" ! Exists('$(DepsPath)%(RemoteAsset.TargetFilename)') "
diff --git a/src/Installers/Windows/WindowsHostingBundle/WindowsHostingBundle.wixproj b/src/Installers/Windows/WindowsHostingBundle/WindowsHostingBundle.wixproj
index 2e5c010ed0e7..50f3607c55bd 100644
--- a/src/Installers/Windows/WindowsHostingBundle/WindowsHostingBundle.wixproj
+++ b/src/Installers/Windows/WindowsHostingBundle/WindowsHostingBundle.wixproj
@@ -104,17 +104,17 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <SharedFxInstallers Include="$(InstallersOutputPath)$(RuntimeInstallerBaseName)-$(SharedFxMsiVersion)-win-x64.msi">
+    <SharedFxInstallers Include="$(CrossArchitectureInstallerBasePath)$(RuntimeInstallerBaseName)-$(SharedFxMsiVersion)-win-x64.msi">
       <TargetPlatform>x64</TargetPlatform>
       <BundleNameProperty>SharedFxRedistInstallerx64</BundleNameProperty>
       <Version>$(SharedFxPackageVersion)</Version>
     </SharedFxInstallers>
-    <SharedFxInstallers Include="$(InstallersOutputPath)$(RuntimeInstallerBaseName)-$(SharedFxMsiVersion)-win-x86.msi">
+    <SharedFxInstallers Include="$(CrossArchitectureInstallerBasePath)$(RuntimeInstallerBaseName)-$(SharedFxMsiVersion)-win-x86.msi">
       <TargetPlatform>x86</TargetPlatform>
       <BundleNameProperty>SharedFxRedistInstallerx86</BundleNameProperty>
       <Version>$(SharedFxPackageVersion)</Version>
     </SharedFxInstallers>
-    <SharedFxInstallers Include="$(InstallersOutputPath)$(RuntimeInstallerBaseName)-$(SharedFxMsiVersion)-win-arm64.msi">
+    <SharedFxInstallers Include="$(CrossArchitectureInstallerBasePath)$(RuntimeInstallerBaseName)-$(SharedFxMsiVersion)-win-arm64.msi">
       <TargetPlatform>arm64</TargetPlatform>
       <BundleNameProperty>SharedFxRedistInstallerarm64</BundleNameProperty>
       <Version>$(SharedFxPackageVersion)</Version>