Not The Normans
According to the author Kevin Cahill, the main driver behind the absurd expense of owning land and property in Britain is that so much of the nation's land is locked up by a tiny elite. Just 0.3% of the population – 160,000 families – own two thirds of the country.
Now Kevin may say that, but the linked website, doesn't only that lots of rich people own lots of land.
It is, of course, complete bollocks. It isn't because their Noble Lordships refuse to sell off building plots; most would welcome an influx of the readies. It is because land only becomes building plots when the man from the council gives planning permission. Blame the bureaucrats, not the Normans.