I was looking at the Google blur thing and apparently once it's done it can't be undone, so tbf to the owners, perhaps it predates them?
Anyway it's a bit of an odd service. Would it devalue your house if you blurred it and then moved? The new owners might want to have the house searchable for eg- especially if it's rural or hard to find.
What if you wanted to 'revenge blur' someone? (You don't have to prove you live there to submit a blur request).
You could go around blurring all the people who'd irritated you. (Not sure why you'd want to, but it seems quite satisfyingly petty.)