Our house is brand new and I made it for my Sims (in Sims 3) and I'd thought about making it for Fallout as well, although I think it'll be harder. Our area is all large properties - we're rural - so that's easy
So, yes, I had thought about making my neighbourhood, but with several mods on the go doubt I'd get around to starting it, let alone finishing it. It seems more fun and easy to make in The Sims than here. My house is not a dirty old tin shed on the outside :laugh:
Maybe I'll try it, while waiting for my copy of NV to arrive from the UK, as I can't be bothered playing at the moment. So I may as well mod, instead.