# The Friend Compound Field Guide

## California’s new housing laws make multi-home living on a single lot achievable—explore real Bay Area sites reimagined as friend and family compounds.

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.

## 17 Friend Compounds (that could have been)

AreaAll areas

Number of homesAny

Price per homeAny

Showing 17 of 17

\
Six New Single-Family Homes\
**Sixth Avenue** \
Menlo Park\
Cost:$8.7mTimeline:23 monthsHomes:6](/content/fieldguide/listings/menlo-park-sb684-compound/index.html)

\
A New Single Family Home and an Existing Primary Home\
**Hampton Road** \
Piedmont\
Cost:$4.3mTimeline:20 monthsHomes:2](/content/fieldguide/listings/piedmont-sb9-compound/index.html)

\
A New ADU and an Existing Primary Home\
**Young St** \
San Mateo\
Cost:$2.2mTimeline:10 monthsHomes:2](/content/fieldguide/listings/san-mateo-adu-compound/index.html)

\
New Duplex\
**Fifteenth Avenue** \
San Francisco\
Cost:$4.4mTimeline:21 monthsHomes:2](/content/fieldguide/listings/sanfrancisco-fifteenth-sb684-compound/index.html)

\
A New Single Family Home and Two New ADUs\
**Bay Street** \
Alameda\
Cost:$7.3mTimeline:22 monthsHomes:4](/content/fieldguide/listings/alameda-sb9-compound/index.html)

\
Two New Single Family Homes and an Existing Primary Home\
**Buena Vista Avenue** \
Alameda\
Cost:$4.0mTimeline:20 monthsHomes:3](/content/fieldguide/listings/alameda-sb684-compound/index.html)

\
A Single-Family Home and Two New ADUs with an Existing Primary Home\
**Wildwood Drive** \
San Mateo\
Cost:$6.5mTimeline:21 monthsHomes:4](/content/fieldguide/listings/wildwood-sb9-compound/index.html)

\
A New Single Family Home and an Existing Primary Home\
**Cortez Avenue** \
Burlingame\
Cost:$4.1mTimeline:20 monthsHomes:2](/content/fieldguide/listings/burlingame-sb9-compound/index.html)

\
Two New Single Family Homes and an Existing Primary Home\
**Carberry Avenue** \
Oakland\
Cost:$4.1mTimeline:20 monthsHomes:3](/content/fieldguide/listings/oakland-sb684-compound/index.html)

\
A New Single-Family Home and Two New ADUs with an Existing Primary Home\
**Pleasant Hill Road** \
Sebastopol\
Cost:$4.2mTimeline:21 monthsHomes:4](/content/fieldguide/listings/sebastopol-sb9-compound/index.html)

\
Four New Single-Family Homes\
**University Avenue** \
Mountain View\
Cost:$6.6mTimeline:24 monthsHomes:5](/content/fieldguide/listings/mountain-view-sb1123-compound/index.html)

\
Two New Single-Family Homes and an Existing Primary Home\
**Highland Avenue** \
San Mateo\
Cost:$3.5mTimeline:21 monthsHomes:3](/content/fieldguide/listings/san-mateo-sb684-compound/index.html)

\
Three New Duplex Townhomes\
**Alabama Street** \
San Francisco\
Cost:$7.1mTimeline:22 monthsHomes:3](/content/fieldguide/listings/sanfrancisco-sb684-compound/index.html)

\
New ADU with an Existing Primary Home\
**Jayne Avenue** \
Oakland\
Cost:$1.3mTimeline:10 monthsHomes:2](/content/fieldguide/listings/oakland-adu-compound/index.html)

\
A New ADU and Existing Primary Home\
**La Goma Street** \
Mill Valley\
Cost:$3.2mTimeline:10 monthsHomes:2](/content/fieldguide/listings/mill-valley-adu-compound/index.html)

\
Six New Single-Family Homes\
**Floribunda Avenue** \
Burlingame\
Cost:$8.2mTimeline:25 monthsHomes:6](/content/fieldguide/listings/burlingame-sb684-compound/index.html)

\
A New Single Family Home and an Existing Primary Home\
**Dowling Boulevard** \
San Leandro\
Cost:$2.4mTimeline:19 monthsHomes:2](/content/fieldguide/listings/san-leandro-compound/index.html)

## Interested in building your own?

Share your goals and we'll figure out next steps.

[Get started](https://f.livenearfriends.com/lnf-builds-you-a-compound-bay-area)