I live in a US city with a higher population density than SF that has barely any structures taller than 3-4 storeys. Most of SF is low density for a city of global importance. The Richmond, Sunset have essentially not changed since the early post-war era.
You can argue the global importance of Silicon Valley or even California generally. I'm not sure I get the "global importance" of the city of San Francisco specifically, which besides an attractive location and relatively easy access to Silicon Valley isn't especially unique among medium to large US cities.
San Francisco is the 5th densest county in the USA, the top four are also the four densest burroughs of New York City.
There is a good argument that San Francisco could and should be denser than it is, but its ludicrous to call it not dense at all.
I live in a US city with a higher population density than SF that has barely any structures taller than 3-4 storeys. Most of SF is low density for a city of global importance. The Richmond, Sunset have essentially not changed since the early post-war era.
You can argue the global importance of Silicon Valley or even California generally. I'm not sure I get the "global importance" of the city of San Francisco specifically, which besides an attractive location and relatively easy access to Silicon Valley isn't especially unique among medium to large US cities.