I suppose if lawnorder breaks down and there's a mad scramble for land, things might rearrange themselves.
The UK has a population density 8 times that of the US, so people might get less than 1/20th of an acre. Can the last politician to go out the revolving door please turn the lights off?
Google says there are about 14 million arable acres in the UK, and 60 million people. Assuming families of 4 - a bit of a stretch - that's around one acre per family.