The Friend Compound Field Guide

California passed a wave of housing laws — SB 9, SB 684, SB 1123 — that make it so you can now build multiple homes on a single residential lot in most Bay Area cities.

That means a friend compound isn't a fantasy. It's a project you can pull off with good certainty on cost and timelines.

To show what's possible, we found 18 properties that sold across the Bay Area in the last year and asked: what if a group of friends or family had bought this instead? Each case study is a project that could have been — a real lot, at its real sale price, with the compound we would have designed for it.

Browse them. Get inspired. And when you're ready to build your own, we're here to help.