Garage to Bedroom Conversion Cost across San Diego County
Converting a garage to a bedroom or general living space without a kitchen or separate ADU status runs $40,000-$70,000 in San Diego County. This is the most affordable conversion path because it skips the plumbing and separate-unit requirements that drive up ADU costs.
What moves the price
- Whether a closet or egress window needs to be added to meet bedroom code
- Flooring upgrade from bare slab to finished flooring
- HVAC extension from the main house system vs. a new mini-split
- Exterior wall infill where the garage door used to be
What's included
- Insulation and drywall for a conditioned living space
- Egress window if required for bedroom code compliance
- Flooring, electrical outlets, and lighting
- Garage door removal and matching exterior wall finish
- HVAC extension or standalone unit for year-round comfort
Common questions
Does a garage-to-bedroom conversion require a permit?
Yes. Any conversion that changes a garage to conditioned living space requires a building permit, even without new plumbing. Skipping the permit creates a problem at resale when the square footage does not match county records.
Can I still park in a converted garage later?
No. Once converted, the garage is living space, so the car must park elsewhere. California law doesn’t require you to replace the lost garage space. In the City of San Diego, a remaining driveway less than 18 feet from the sidewalk must be closed. For coastal parcels, confirm parking and driveway treatment with Development Services.
Is a bedroom conversion worth it if I am not adding an ADU?
For growing families needing an extra bedroom without the cost of a kitchen and second entry, yes. It is the lowest-cost way to add legally permitted square footage to a home.
Need a written bedroom cost for your project?
Insured local crews across San Diego County put the scope in writing.