I remember our last place, which was also my first, cost the previous owner £58K to buy. We paid £128K for it just two years later in 2003. Not quite as impressive a set of figures as yours, but it does show how the market leapt in the early Noughties.
One guy I was chatting with at work a few years back said he bought his place for about £6K in the Sixties, and was then worth about £300K. I did some back of fag packet maths and worked out that, if house prices rose by the same amount over the next forty years or so, that my house would be worth about £14M which seems bonkers But then, I'm guessing £300K also seemed bonkers back in the Sixties so who knows?