That's mountain/cliff/etc housing everywhere. Some people like literally living on the edge. Daly City's got a similar area where the cliffsides are actively cr

That's mountain/cliff/etc housing everywhere. Some people like literally living on the edge. Daly City's got a similar area where the cliffsides are actively crumbling during earthquakes and el ninos http://www.californiacoastline.org/cgi-bin/maplocate.cgi?1,2013,164,0,328,0,37.663617,122.500435,0,0,12,85,64 http://www.californiacoastline.org/cgi-bin/maplocate.cgi?1,2...