If you are taking over a site from another owner, after you verify
ownership you can unverify previous owners by removing their
verification token (for example, removing the HTML tag from the site,
for HTML-tag-verified owners)
To remove a verified owner
If all verified owners are removed, then all remaining users will lose
access to the property after a grace period. Data for the property
will continue to be collected, but nobody will have access to it until
someone verifies ownership of the property.
You must delete all tokens used to verify a specific user's ownership
of the property. A user might use multiple methods to verify their
Determine the verification method(s) used for the owner. Be sure to
determine the unique token value used for the user that you wish to
Remove all verification tokens for that user for the property. For
instance, if "HTML Tag" is listed, you must remove the HTML tag
for that person from the site. If "HTML File" is listed, you must
remove the HTML verification file for that person from the site. If
you don't remove all verification tokens for a user, they can be
reverified as an owner using any remaining tokens.
HTML file upload: Look for the HTML file associated with the user at the root location for your site. The file will have a long
alphanumeric name, and a single line of text that includes the string
"google-site-verification". Remove this tag. Make sure that you remove
only the tag assigned to the person you wish to remove.
HTML tag: Look in the page source of your homepage for the user's tag, which looks something like this: . You must remove
the tag from the page source. Make sure that you remove only the tag
associated with the user that you wish to remove.
Domain name provider: You must find and remove the DNS record associated with the user.
Google Analytics account: In order to permanently disable this verification mechanism for this user, you must either switch Google
Analytics accounts for this site, or else revoke edit rights given to
this person in the Google Analytics account for this site. To
determine which Google Analytics account is used for this site, look
at the rendered source of the page (in Chrome, right-click and choose
Inspect), and search for "UA-" or "G-" in the page code, which should
correspond to your Google Analytics account.
Google Tag Manager account: In order to permanently disable this verification method for this user, you must either switch Google Tag
Manager accounts used on this site, or remove the person's Publish or
Admin permission in the associated Google Tag Manager account.
Google Sites/Blogger account: The owner of a Google Site or Blogger website will always have access to the associated property in
Search Console. To completely remove access, the owner of the Google
Site or Blogger website must be switched (because a Google Site or
Blogger account must always have one and only one owner).
Google Domains account: Remove the user as administrator from the associated Google Domains account.
After removing the former owner's tokens from the site, open the Users
and permissions page.
Click Unverify next to the owner's name to unverify the unwanted
owner. The owner's verification token must be gone, or else the
unverify request will fail. (Even if you don't unverify ownership
using the Users and permissions page, Search Console will eventually
notice the removed token, and that owner will then lose access to the
Search Console property.)