Our Services
A second unit on the lot: rental, parents, or a place to work. We handle design coordination, permits, and the build.
Why people build them
Rent, family, or a quiet room off the house. Same permit path either way.
A legal second unit can cover a chunk of the mortgage. We build to the permit so you can actually rent it.
Parents, adult kids, a guest room with its own door. Separate enough to be private.
Work, gym, or guest space that is not the dining table.
A permitted second unit is square footage the next buyer can use or rent. That is the value.
Types
Detached, garage conversion, or attached. The city path is different for each. We run it.
Its own building. Up to 1,200 sq ft. Own door, own kitchen and bath.
The garage is already there. Faster and cheaper than a new building, if the setbacks work.
Shares a wall with the house. Shared utilities, still its own entry.
Jobs
Tiburon and San Jose.
How we run it
The city process is the long part. We take that. You pick finishes.
We file, we revise, we meet the inspector. You do not sit at the counter.
Most ADUs are 6 to 12 months including permits. Garage conversions can be 3 to 6.
CA License #1042705. Insured, including workers comp.
Written scope. No hidden fees.
FAQ
ADU costs in the Bay Area typically range from $150,000 to $350,000 depending on size, finishes, and whether it's a detached unit, garage conversion, or attached addition. We provide detailed estimates with no hidden fees.
Most ADUs take 6 to 12 months from design through inspections, permits included. Garage conversions can be 3 to 6 months.
Yes. California requires a building permit. We file it and walk the inspections.
Next
Free consult. We look at setbacks, access, and the likely permit path.