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Garage conversion ADUs in San Francisco
Turn an attached or detached garage into a permitted home with insulation, windows, a kitchen and a bathroom.

Why convert a garage?
The structure is already there, so a conversion often costs less and moves faster than a new cottage. California law also says the lost garage parking does not have to be replaced.

What does a garage need?
- A slab check, sometimes a new floor over it
- Insulation, drywall and windows
- Plumbing for a kitchen and bathroom, often through the slab
- Electrical capacity and a separate entry
What can surprise owners?
An old slab without a moisture barrier, a sewer line that sits higher than the new bathroom, or framing that does not meet current code. We check all three before pricing.
Housing services in tenant-occupied buildings
In buildings with tenants, an ADU cannot take away a garage, laundry room or storage space tenants use without a just-cause reason. Plan the layout around that before design.
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Is your lot ready for an ADU?
Send your address and a sentence about what you want. We look up the zoning, setbacks and utility routes and reply with the ADU types that fit.
We build in San Francisco, CA.