Garage conversion planning resources
Use these sheets to sort eligibility, permits, and budget for a San Diego garage before anyone prices the work.
Garage conversion planning guides
How to measure a garage for a conversion estimate
A rough sketch and photos can help explain your idea to a professional. These homeowner measurements are a starting point, not a substitute for a site survey or design drawings.
How to check garage ADU eligibility
An address-specific eligibility discussion starts with the reviewing agency, the existing building, and the proposed unit. Use official guidance to prepare your questions rather than assuming that a nearby project has the same rules.
How to prepare a garage for conversion work
Agree on a start plan with the professional you hire. Moving personal belongings, documenting the space, and discussing access can make the work area easier to review.
How to follow garage conversion permits and inspections
Once a permit is issued, keep the approved documents and inspection information together. The reviewing agency and project scope determine the inspection sequence and final steps.
Signs the homework is finished
These six situations mean the next step is a licensed look at the building, not another article. Scope, approval, and price all move once any of them is true.
- Unclear permit requirements
Ask the reviewing agency and a qualified professional about your proposed use and address.
- A damaged or damp slab
Ask a professional to assess the condition before selecting a floor assembly.
- Electrical capacity questions
Have a qualified electrician evaluate the existing service and proposed loads.
- Changes to the garage opening
Ask the designer and contractor to assess the framing and approved scope.
- A proposed bathroom or kitchen
Discuss fixture locations, water, drainage, and ventilation with qualified trades.
- Questions about the intended unit
Ask the reviewing agency and designer which rules apply to the project.
Further reading
California HCD ADU handbook
State guidance on accessory dwelling units.
City of San DiegoCity of San Diego ADU guidance
City guidance for ADUs and junior ADUs.
County of San DiegoCounty ADU information
Guidance for properties in unincorporated areas.
CSLBCalifornia Contractors State License Board
Search for contractor license information.
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