Maybe you can find a legal loophole. Something in British law granting freedom of choice of profession and livelihood, and the sue your way into peasanthood and land ownership.
(Half joking)
(Half joking)
There are plenty of loopholes if you just Google it but most of them are absolute nonsense and clickbait. There's one guy I know of who managed it through wood management building gray area. Looks most promising as it doesn't require 12 acres of land.