[friend_Fernando]

I live in SF. The vast majority of new construction above 3 stories is reinforced concrete, including many high-rises such as the (infamous) 58-story Millenium Tower.[1] Seismically, modern reinforced concrete performs well.

As I explained in sibling threads, "speed bumps" are the most important thing here in CA. It's not about whether your structure can withstand a 1000-degree fire all around it. It's about whether your structure will set fire to three others within minutes of when it goes up in flames.

[1] https://en.wikipedia.org/wiki/Millennium_Tower_(San_Francisc...