... see for yourself:
I don't fancy anything younger than 1968.
Having said that, there's a few structural issues with my gaff and that was thrown together in 1960.
Apparently the purlins are horribly undersized, but the whole estate is like that. I can't be the only owner with the problem, which is a spreading roof.
My O/Hs sister's place was pretty similar. Nice and warm though.