diff --git a/tools/pipeline-witness/infrastructure/bicep/appResourceGroup.bicep b/tools/pipeline-witness/infrastructure/bicep/appResourceGroup.bicep
index 1a5faffd34b7..1ad73a302ac5 100644
--- a/tools/pipeline-witness/infrastructure/bicep/appResourceGroup.bicep
+++ b/tools/pipeline-witness/infrastructure/bicep/appResourceGroup.bicep
@@ -6,6 +6,8 @@ param appStorageAccountName string
 param aspEnvironment string
 param cosmosAccountName string
 param location string
+param vnetPrefix string
+param subnetPrefix string
 
 var cosmosContributorRoleId = '00000000-0000-0000-0000-000000000002' // Built-in Contributor role
 
@@ -23,7 +25,7 @@ resource vnet 'Microsoft.Network/virtualNetworks@2023-11-01' = {
   properties: {
     addressSpace: {
       addressPrefixes: [
-        '10.8.0.0/16'
+        vnetPrefix
       ]
     }
     virtualNetworkPeerings: []
@@ -35,7 +37,7 @@ resource subnet 'Microsoft.Network/virtualNetworks/subnets@2023-11-01' = {
   parent: vnet
   name: 'default'
   properties: {
-    addressPrefix: '10.8.0.0/24'
+    addressPrefix: subnetPrefix
     networkSecurityGroup: {
       id: networkSecurityGroup.id
     }
diff --git a/tools/pipeline-witness/infrastructure/bicep/parameters.production.json b/tools/pipeline-witness/infrastructure/bicep/parameters.production.json
index d722a4090c35..4032347b4ded 100644
--- a/tools/pipeline-witness/infrastructure/bicep/parameters.production.json
+++ b/tools/pipeline-witness/infrastructure/bicep/parameters.production.json
@@ -40,6 +40,12 @@
     },
     "vnetName": {
       "value": "pipelinewitnessprod"
+    },
+    "vnetPrefix": {
+      "value": "10.9.0.0/16"
+    },
+    "subnet": {
+      "value": "10.9.0.0/24"
     }
   }
 }
\ No newline at end of file
diff --git a/tools/pipeline-witness/infrastructure/bicep/parameters.staging.json b/tools/pipeline-witness/infrastructure/bicep/parameters.staging.json
index 3fb27183a7d4..29b352339c5e 100644
--- a/tools/pipeline-witness/infrastructure/bicep/parameters.staging.json
+++ b/tools/pipeline-witness/infrastructure/bicep/parameters.staging.json
@@ -40,6 +40,12 @@
     },
     "vnetName": {
       "value": "pipelinewitnessstaging"
+    },
+    "vnetPrefix": {
+      "value": "10.8.0.0/16"
+    },
+    "subnet": {
+      "value": "10.8.0.0/24"
     }
   }
 }
\ No newline at end of file
diff --git a/tools/pipeline-witness/infrastructure/bicep/parameters.test.json b/tools/pipeline-witness/infrastructure/bicep/parameters.test.json
index ebfac490dc77..222471a15664 100644
--- a/tools/pipeline-witness/infrastructure/bicep/parameters.test.json
+++ b/tools/pipeline-witness/infrastructure/bicep/parameters.test.json
@@ -40,6 +40,12 @@
     },
     "vnetName": {
       "value": "pipelinewitnesstest"
+    },
+    "vnetPrefix": {
+      "value": "10.7.0.0/16"
+    },
+    "subnet": {
+      "value": "10.7.0.0/24"
     }
   }
 }
\ No newline at end of file
diff --git a/tools/pipeline-witness/infrastructure/bicep/resourceGroups.bicep b/tools/pipeline-witness/infrastructure/bicep/resourceGroups.bicep
index a0c76732cbf2..845f495c162e 100644
--- a/tools/pipeline-witness/infrastructure/bicep/resourceGroups.bicep
+++ b/tools/pipeline-witness/infrastructure/bicep/resourceGroups.bicep
@@ -7,6 +7,8 @@ param appServicePlanName string
 param webAppName string
 param networkSecurityGroupName string
 param vnetName string
+param vnetPrefix string
+param subnetPrefix string
 param cosmosAccountName string
 param appStorageAccountName string
 param aspEnvironment string
@@ -28,6 +30,8 @@ module pipelineWitness 'appResourceGroup.bicep' = {
   params: {
     location: location
     appServicePlanName: appServicePlanName
+    vnetPrefix: vnetPrefix
+    subnetPrefix: subnetPrefix
     webAppName: webAppName
     cosmosAccountName: cosmosAccountName
     appStorageAccountName: appStorageAccountName