Shutting down a project within the console releases all resources used inside the project.
Only project owners can shut down or restore projects.
To shut down a project:
Go to the Cloud Platform Console.
Open the console left side menu and choose IAM & Admin, then choose Settings.
Find the name or project ID of the project you would like to shut down, then click shut down.
A confirmation screen describing what will happen appears.
To confirm, enter your project ID and click on shut down.
Shutting down a project stops all billing and traffic serving shuts down any Google Cloud Platform App Engine applications, and terminates all Compute Engine instances.
All project data related to Google Cloud and Google APIs services becomes inaccessible.
After a 30-day waiting period, the project and associated data are permanently deleted from the console.
Hope this helped!!
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