Garage conversion service across San Diego County
We cover 67 cities and communities, from the coast to the backcountry. Click your city for local notes, service specifics, and a direct line to book. The county-wide answer: a garage conversion in San Diego needs a permit, a written scope from the crew, and a choice between habitable room, junior ADU, or full ADU.
How a garage conversion works in San Diego County
A garage conversion in San Diego County turns space you already have into permitted living space, without building an addition. Most San Diego County homeowners take one of three routes. A garage-to-bedroom or living space conversion adds square footage to the main house. A junior ADU stays under 500 square feet and shares plumbing and entry with the home. A full ADU garage conversion becomes an independent unit with its own kitchen, bath, and entrance.
Garage Convert SD is a referral service, not a contractor. You tell us your city and your plan, and we match you with insured local crews who already work that area. You hire and pay the licensed professional directly. Verify any license yourself at cslb.ca.gov.
What a garage conversion costs in San Diego County
A garage-to-bedroom or living space conversion typically runs $40,000-$70,000. A junior ADU typically runs $50,000-$90,000. A full ADU with kitchen, bath, and permits typically runs $75,000-$150,000. Permit fees, plumbing distance, and finish level move those numbers more than anything else. Those are published market bands. The licensed pro you hire confirms a written price. Garage Convert SD sets no prices.
State law requires the agency to approve or deny a completed ADU application within 60 days. Construction time after the permit issues is set by the licensed pro. This site does not publish a 9-18 month total or a city-by-city plan-check week average.
Coastal San Diego
North Coastal San Diego
Central San Diego
North County Inland San Diego
East County San Diego
South County San Diego
Backcountry San Diego
Frequently asked questions
How much does a garage conversion cost in San Diego County?
A garage-to-bedroom or living space conversion typically runs $40,000-$70,000. A junior ADU typically runs $50,000-$90,000, and a full ADU with kitchen, bath, and permits typically runs $75,000-$150,000. Those are published market bands, not a quote from Garage Convert SD. The licensed pro you hire confirms the price in writing.
Do I need a permit for a garage conversion in San Diego?
Yes. Converting a garage into habitable space requires a permit in every San Diego County jurisdiction. State law requires the agency to approve or deny a completed ADU application within 60 days. This site does not publish a city-by-city plan-check week average. Ask the department that reviews the address.
How long does a garage conversion take in San Diego?
State law gives the agency 60 days to decide a completed ADU application. Construction time is set by the licensed pro after the permit is issued. This site does not publish a 9-18 month total or an 8-16 week construction average.
What is the difference between an ADU and a junior ADU?
A full ADU is an independent unit with its own kitchen, bath, and entry. A junior ADU is capped at 500 square feet, must be within the existing home footprint including an attached garage, and can share plumbing and entry with the main house. A detached garage cannot become a JADU.
How do I find a garage conversion contractor in San Diego?
Tell us your city and what you want to build, and we match you with insured local crews who work that area. Garage Convert SD is a referral service, not the contractor. Verify any license yourself at cslb.ca.gov.
What does it cost to convert a garage to an ADU in San Diego?
The ranges above cover it. A junior ADU sits below a full ADU because it shares plumbing and entry with the main house. Permit fees, how far the plumbing has to run, and finish level move the number more than anything else. Your crew confirms a written price after seeing the garage.
Which San Diego County cities do you cover?
All 67, from Oceanside and Carlsbad on the coast to El Cajon and Santee inland, and out to Julian, Ramona, and the backcountry. Pick your city below for local permit notes and the crews that cover it.
Get matched with an insured local garage conversion crew
Call and we match you with insured local crews across San Diego County.