874d434e_cisco_General_Plan____Downtown__Base_Case
[0] Banners [Second Level] Encouraged on Powell, Post, in the YBC area, and on Alleys. Elsewhere, event banners or banners attached to buildings. [Special Level] All types are encouraged. On California, banners are limited to temporary installations or on buildings. [Base Case] 
Only short-term, event banners or banners attached to buildings.
San Francisco General Plan :: Downtown
Base Case