Good question. I'm not sure. Maybe it's economics, or maybe a combination of economics and zoning. The one area in SF which got the 'stamp of approval' for that vision, is the China Basin/Mission Bay area. Those tend to be 6 to 15 floor developments. I think that's a good direction. It's not super tall but also does not despoil land with awful low-rise ininspired developments with the collapse-prone first floors (the ones with 'garages' on the first floors).
On the economic side, I think cities prefer single family devs because they can levy more taxes (as they do it per acre, I think). I don't see why they don't tax by livable (inhabitable) space and land, that way they can compensate for the greater density in required services.
Anyway, I've begun reading Jane Jacobs's "The Death and Life of Great American Cities"[1]. It provides interesting insight into the suburbanization of America (and other places, of course, but she looks at the American side of it) and its impact on quality of life and how it may be time to rethink the suburbanization and revitalize cities to make the inner cores actual livable places, not just places where people drive in for work. It's an old tome, but it's still very relevant today.
W:re Soviet style (and even section 8 in the US and Council Estates in the UK) the planners were kind of utilitarian and naive. They more or less saw them as solutions for housing people as if they were storing objects. Little in the way of allowances for human nature. The plans were a bit too abstract. For example, let's say they thought it'd be nice to have a community area. They'd afford a room somewhere in a building, but put little thought on where might be optimum or how people might use it and have equally easy access to it. So they might end up being dingy unused areas which might just get defaced or used by low level criminals.
On the economic side, I think cities prefer single family devs because they can levy more taxes (as they do it per acre, I think). I don't see why they don't tax by livable (inhabitable) space and land, that way they can compensate for the greater density in required services.
Anyway, I've begun reading Jane Jacobs's "The Death and Life of Great American Cities"[1]. It provides interesting insight into the suburbanization of America (and other places, of course, but she looks at the American side of it) and its impact on quality of life and how it may be time to rethink the suburbanization and revitalize cities to make the inner cores actual livable places, not just places where people drive in for work. It's an old tome, but it's still very relevant today.
W:re Soviet style (and even section 8 in the US and Council Estates in the UK) the planners were kind of utilitarian and naive. They more or less saw them as solutions for housing people as if they were storing objects. Little in the way of allowances for human nature. The plans were a bit too abstract. For example, let's say they thought it'd be nice to have a community area. They'd afford a room somewhere in a building, but put little thought on where might be optimum or how people might use it and have equally easy access to it. So they might end up being dingy unused areas which might just get defaced or used by low level criminals.
[1] http://www.amazon.com/Death-Life-Great-American-Cities/dp/06...