To shut down a project using the Cloud Platform Console:
https://cloud.google.com/resource-manager/docs/creating-managing-projects#shutting_down_projects
Open the Settings page in the Google Cloud Platform Console. https://console.cloud.google.com/projectselector2/iam-admin/settings?_ga=2.60913644.-1559891757.1548749032&supportedpurview=project,organizationId,folder&orgonly=true
Click Select a project.
Select a project you wish to delete, and click Open.