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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.

Beige roll-up garage door set in shingled siding

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.

Open garage with a concrete floor beside a brick wall
Open garage with a concrete floor beside a brick wall

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.

Related

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.

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