In one scene, he briefly considers relocating to a rural or suburban area somewhere in southern England (no more than an hour's drive from London, I'd say.) It needs to be a safe, welcoming environment with a lot of trees and/or open spaces. It also needs to be affordable. However, he'd prefer an area that isn't entirely in the middle of nowhere, since he's a twenty-something and will miss urban life. Closer to London is better, since he's got friends there.
So, which places fitting this description would occur first to a Londoner?