To "house" people and the homeless....is only part of the equation...many of these people are drug addicted and physically and mentally ill.....and THAT also needs funds and to be addressed......and wasting HUGE sums in opportunity costs AND tax revenue by locating "low cost housing" on the most expensive land in the city, country and arguably the world, is NOT intelligent...reap some of the allowed excessive profits of rezoning really valuable land and use those funds to build twice the amount of social housing on "normal" priced land AND . you would have some $ left over for medical, both physical and mental treatment for these unfortunate people.