This is, as other posters have observed, subjective. I am fortunate to have a little choice about where I live and not to have grown up in an overheated/overcrowded area, but the small town I moved to 10 years ago has plans for 4500+ new houses. I don't object to people having homes, but there are no plans for any significant road or public transport improvements. It is the short-sighted fastbuck nature of everything where developers regard contributing to the infrastructure as "a burden" that I dislike.
^And this sort of attitude to afforable housing
www.section-106.co.uk/?gclid=CNvc0b7Glc0CFRITGwodUvYOsA^
The whole "planning" system is a joke, it's a cosy cartel run by a few jargon-touting folk for their own benefit.
Big builders (particularly retirement property builders) are using bully boy tactics and their huge financial clout to force local authorities to build where ever they like.
I know of one instance where a developer boasts that they can get 'planning permission' anywhere. They employ the best lawyers and fly in their top personal to intimidate at planning meetings.
Most don't stand up to it. Or don't have the resources to do so. To be honest I see the problem is that local councillors often can't do very much.
It comes down to national level policy not backing them up.
Incidentally do try and put any concerns you have or what you would like to see in your area in writing to local and borough councillors. Or even stand as one with a view to get onto planning committees. This adds weight to anyone trying to get affordable developments rather that developments that are purely for profit.
Its OUR future. We can do more good by getting actively involved rather than opting out of things and blaming x, y and z.
As for the UK being overcrowded. Its not.
We could deal with problems if we made a concerted positive effort.
The problem is not a UK one anyway its an international one, that we need to work together to resolve.
London needs someone working full time in that capacity....