If a project is deleted through the Google console it will go into a pending state for 30 days within GCP.
Within 4 hours of that happening, CloudHealth will update the health status of that project to “Pending Deletion” and we will deactivate all resources for that project.
GCP does a soft delete for 30 days then it's a hard delete. The CloudHealth platform will wait until the hard delete takes place.
See documentation on deleting projects for more details:
https://cloud.google.com/resource-manager/docs/creating-managing-projects#shutting_down_projects