diff --git a/.gitlab/ci/docker-image-builds.yml b/.gitlab/ci/docker-image-builds.yml
index de26eab104f76456e4e95b539f3cef7c7f8d5736..31898b74acfb0eb9ccdd32588282c0caafa7d5ed 100644
--- a/.gitlab/ci/docker-image-builds.yml
+++ b/.gitlab/ci/docker-image-builds.yml
@@ -1,7 +1,11 @@
-# Copyright (c) 2022 Arm Limited or its affiliates. All rights reserved.
+# Copyright (c) 2022-2023 Arm Limited or its affiliates. All rights reserved.
 #
 # SPDX-License-Identifier: MIT
 ---
+# Conditions
+.if-new-merge-request: &if-new-merge-request
+  if: '$CI_MERGE_REQUEST_IID && ($CI_MERGE_REQUEST_PROJECT_ID != $CI_MERGE_REQUEST_SOURCE_PROJECT_ID)'
+
 Build-Kas-Docker-Arch-Image:
   extends: .build-docker-image
   parallel: &Build-Matrix
@@ -20,6 +24,7 @@ Build-Kas-Docker-Arch-Image:
         - .gitlab-ci.yml
         - .gitlab/ci/docker-image-builds.yml
         - .gitlab/Dockerfiles/kas-build-image/**/*
+    - <<: *if-new-merge-request
 
 Build-Kas-Docker-Image:
   extends:
@@ -43,6 +48,7 @@ Build-Utility-Docker-Arch-Image:
         - .gitlab-ci.yml
         - .gitlab/ci/docker-image-builds.yml
         - .gitlab/Dockerfiles/utility-image/**/*
+    - <<: *if-new-merge-request
 
 Build-Utility-Docker-Image:
   extends:
@@ -66,6 +72,7 @@ Build-Lava-Docker-Arch-Image:
         - .gitlab-ci.yml
         - .gitlab/ci/docker-image-builds.yml
         - .gitlab/Dockerfiles/lava-test-image/**/*
+    - <<: *if-new-merge-request
 
 Build-Lava-Docker-Image:
   extends: