At some point, you may need or want to delete one of your sites on Pantheon. The number of free sites you can create is increased after a free site is deleted, or after it has converted to a paid plan.
This action is permanent and irreversible. Export any needed content, code, or files from the site before starting this operation.
Before deleting a site, you must downgrade the site plan to Sandbox level. See Manage Site Plans for more information.
Select Settings > Delete Site.
Click the Delete Site button.
Enter the site title; this ensures you're aware of the site you're deleting.
Select the checkbox next to the site you want to delete.
Click Operations, and select Delete Site.
Click Delete Site(s).
Run the following Terminus command:
terminus site:delete <site>
<site> with your site name. You can see a list of all your sites by running
Refer to the Delete a Branch Environment section of our Multidev guide for more information.