diff --git a/roles/_init/defaults/main.yml b/roles/_init/defaults/main.yml
index b0fa647b..66af7dd2 100644
--- a/roles/_init/defaults/main.yml
+++ b/roles/_init/defaults/main.yml
@@ -12,6 +12,7 @@ lock_file: /tmp/ce-deploy-lock
 provision_lock_file: /tmp/ce-provision-lock # must match _init.lock_file in ce-provision
 skip_build_path_check: false # by default we're checking if track number matches
 keep_builds: 10  # the number of builds to keep in the build history, includes associated databases
+build_cleanup_pattern: "{{ project_name }}_{{ build_type }}_build_*" # name pattern of the builds to be checked for cleanup
 # Application specific variables.
 drupal:
   drush_verbose_output: false
diff --git a/roles/_init/tasks/main.yml b/roles/_init/tasks/main.yml
index f5fac276..b2be45d8 100644
--- a/roles/_init/tasks/main.yml
+++ b/roles/_init/tasks/main.yml
@@ -152,18 +152,20 @@
         _build_numbers_clean: []
         _build_numbers_to_delete: []
 
-    - name: Find all directories in this project deploy directory.
+    - name: Find the relevant directories in this project deploy directory.
       ansible.builtin.find:
         paths: "{{ deploy_base_path }}"
         recurse: false
         file_type: directory
+        patterns: "{{ build_cleanup_pattern }}"
       register: _build_directories_general
 
-    - name: Find all directories in the build directory if SquashFS.
+    - name: Find the relevant directories in the build directory if SquashFS.
       ansible.builtin.find:
         paths: "{{ build_base_path }}"
         recurse: false
         file_type: directory
+        patterns: "{{ build_cleanup_pattern }}"
       register: _build_directories_squashfs
       when:
         - deploy_code.mount_type is defined