I've been pondering the question for a few days of why Labour doesn't back Land Value Tax (LVT). Consider the effect of it on the electorate:-
1) The Labour base. They would be reasonably OK with this. They live in small flats in cheap parts of cheap areas of the country. They'd be better off.
2) The floating voters (C2s). Basically unaffected by LVT.
3) Productive business owners. Would find little unwelcoming about it (and they're the businessmen that the public like).
4) The aristos and large land owners. Pissed off to hell, but they're never going to vote Labour anyway. And of course, you can get your class warfare out of this.
It would also be economically good too, encouraging growth and therefore doing good for Labour.
There's 3 possible reasons that Labour aren't doing it.
1) They're not aware of it.
2) They're too dumb to work out it's a good idea
3) The Labour Party is no longer run for blokes with flat caps and whippets, but for Guardian-reading Hampstead liberals, who are as much into homeownerism as everyone else.