Off-topic, but TrueBlue - whoah-hoah! which one on that website is yours and was it seriously £60k? 'Cos we have an Edwardian semi, which is great, but I would like to investigate pushing out the side return and getting a bigger kitchen/laundry room with dog bath/extra lav and more light. It would kill our neighbour, but she's moving soon so maybe now's the time to investigate?
I've done house and city centre flat living and much as I loved our tiny cosy flat in Paris (with parquet, floor to ceiling windows and great storage) it is hard work always having to travel to get to green space and never being able to just sit quietly in your own garden. Always stepping straight from home onto a street. Flat living in London - mmm, not so great. Bins don't work, noise insulation doesn't work, neighbours don't seem good at living in denser neighbourhoods, hallways filled with crap, no-one wants to take care of the communal areas or pay someone properly to do so well. But I'm sure there are good (and probably extremely expensive) examples of fully serviced buildings. Maybe something like the mansion blocks in South Kensington?
I love our house and garden, although yeah, you do have to love spending time and money to keep them nice. And much as I like my neighbours, I do not like their silver birch trees, dripping filthy catkins all over my borders coming into leaf right now! But I love having a garden to clear up.
I suppose what I'm saying is, you need to make the best of the situation you find yourself in. Buy as much space as you can afford while you're young, I'd say, as a general rule.