My uninformed solution is, at least in SF, they should re-zone all of the financial district and union square. If the first floors were cafes and shops and the

My uninformed solution is, at least in SF, they should re-zone all of the financial district and union square. If the first floors were cafes and shops and the upper floors where apartments and the top floors restaurants, patios, lounges, they'd revitalize that part of town. It's dead at the moment.