[paulddraper]

I was thinking shear walls, steel moment frames, foundation cap and stitch, etc.

You're right that bolt and brace is great.

CA average new construction is $680k. [1]

[1] https://www.costtobuildhouse.com/cost-to-build-a-house-in-ca...

[s1artibartfast]

Yes, and you can double or tripple that $/sqft in sismically active areas like the bay area.