In a lot of these sorts of situations land ownership is a bit different. In the UK (and I assume in the US) there just isn't anywhere you could construct someth

In a lot of these sorts of situations land ownership is a bit different. In the UK (and I assume in the US) there just isn't anywhere you could construct something like that without being moved on. Here in the UK, the major issue for home building seems to be less around the physical construction of houses (there are lots of low cost ways we can and do build), it's securing land to actually build on and that you can get planning permission for.