@Heronwatcher - Thanks for this. Yeah, the noise thing could for sure be an issue. I don't love it, but I think that's all I can afford for the time being if I want to be commutable to work, friends, etc. The only way I could afford detached would put me miles out of London. Sadly! Do you know if it's possible to extend on an ex-council flat like that? I just assumed that was out of the question. Gosh, I'd love to eventually (it'd be a while since I'm throwing my life savings into this place). I fully agree that it should be used as much as possible.
@WaitingForSunnyDays - Oh that's a good point about the boiler and the slightly older house and setup with less sockets. I'd have to get creative with extenders in the short term. It's worth watching out for, for sure, and will likely be an expense to save for down the line. Thanks for flagging! Can I check how much the boiler was (eek)? I'll be scraping by for a few months after I buy!