We bought a new build last year. It’s on a small-ish development (~70 houses) and it’s well proportioned, light, airy and has plenty of storage – so not all new builds are crap (some are def rabbit hutches though). It’s mainly big 3/4 bedroom houses plus quite a few big 5/6 bed houses and there are a few Maserattis (sp?) and Porsches (none of which are mine).
There are ~15 or so ‘social’ houses but all bar one are part ownership for ‘key workers’. So far, so good, everyone is friendly. Whilst we were waiting to move we rented for a bit on a bigger estate were there was more ‘not done a days work in their life housing’ and whilst it wasn’t great, it wasn’t scary with gangs of feral kids roaming around.
So from my limited experience I’d say factor in how big the development is (bigger prob = worse), the type of social housing (rented -v- shared ownership), the % of social -v- private, and the size of the houses and the % make up (if it’s lots of small 2/3 bed houses then they’re more likely to be BTL so could be rented out to anyone).
EDIT: just to add – it’s good that people learn that not everyone is like them so mixing housing stock is a good thing.
HTH.