Why convert a garage?
Because it reuses walls, roof and slab. And when a garage is converted to an ADU, California does not let cities require replacement parking.

What does a garage need?
- Moisture and level checks on the slab
- New wall and ceiling insulation
- Egress windows and an entry door where the garage door was
- Sewer and water lines and an upgraded panel
What can surprise owners?
Older garages often sit right on the property line. Conversions of existing structures can keep that setback, but fire rules still apply to walls near the line.
Converting an Oakland garage
Older detached garages often sit close to the property line. A conversion can keep that footprint, but separation from the main house and fire rules still apply, and Changes of Occupancy rules can come into play.
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 Oakland, CA.
