diff --git a/zuul.d/base.yaml b/zuul.d/base.yaml
index 3c27742694..87083604f3 100644
--- a/zuul.d/base.yaml
+++ b/zuul.d/base.yaml
@@ -540,6 +540,9 @@
     name: openstack-helm-blazar
     parent: openstack-helm-deploy
     timeout: 7200
+    files:
+      - blazar/.*
+    abstract: true
     vars:
       gate_scripts:
         - ./tools/deployment/common/prepare-bashrc.sh
@@ -562,6 +565,8 @@
     name: openstack-helm-cloudkitty
     parent: openstack-helm-deploy
     timeout: 7200
+    files:
+      - cloudkitty/.*
     abstract: true
     vars:
       gate_scripts:
@@ -584,6 +589,8 @@
     name: openstack-helm-freezer
     parent: openstack-helm-deploy
     timeout: 10800
+    files:
+      - freezer/.*
     abstract: true
     vars:
       gate_scripts:
diff --git a/zuul.d/project.yaml b/zuul.d/project.yaml
index 7b5c91caf4..1fb4a5e752 100644
--- a/zuul.d/project.yaml
+++ b/zuul.d/project.yaml
@@ -40,6 +40,9 @@
         - openstack-helm-compute-kit-2025-1-ubuntu_jammy  # 1 node + 3 nodes
         - openstack-helm-skyline-2025-1-ubuntu_jammy  # 3 nodes
         - openstack-helm-octavia-2025-1-ubuntu_jammy  # 4 nodes
+        - openstack-helm-blazar-2025-1-ubuntu_jammy  # 3 nodes; run only if blazar changed
+        - openstack-helm-cloudkitty-2025-1-ubuntu_jammy  # 3 nodes; run only if cloudkitty changed
+        - openstack-helm-freezer-2025-1-ubuntu_jammy  # 3 nodes; run only if freezer changed
         # 2025.1 Ubuntu Noble
         - openstack-helm-cinder-2025-1-ubuntu_noble  # 5 nodes rook
         - openstack-helm-compute-kit-2025-1-ubuntu_noble  # 1 node + 3 nodes