The dichotomy between "cheap housing" and luxury housing needs to end.

(I might be wrong but) if I had to bet why councils could build more places it's that they would have a streamlined approval process with councils (denying a social housing project would look bad) while the private developers have to follow the mood of the deparments and several "appeals" and "NIMBYs" (same as in the US today)

But a new "luxury apt" opens a place in a slightly cheaper property.