Garage Conversion to ADU Eligibility Checker - Los Angeles
Find out if your Los Angeles garage can be legally converted to an ADU or living space - free instant check
Check Your Property
Enter a property address to check garage conversion eligibility
ADU Conversion
Convert your garage to a fully permitted Accessory Dwelling Unit for rental income or family.
Add Property Value
Garage conversions can add significant value to your property and generate rental income.
No Parking Replacement
Under current CA law, most garage conversions don't require replacement parking spaces.
Can You Convert a Garage to an ADU in Los Angeles?
In most cases, yes. California state law (AB 2221 and SB 897) and Los Angeles city ordinances now make it easier than ever to convert an attached or detached garage into a legal Accessory Dwelling Unit (ADU). Garage conversions are typically the most affordable path to adding a rental unit or in-law suite to your property.
Our free eligibility checker looks up your property's zoning, lot size, existing structures, and local ADU rules to tell you whether your garage qualifies - and if so, what size and type of ADU you can build.
Garage Conversion Cost in Los Angeles (2026)
Converting a garage to an ADU in LA typically costs between $80,000 and $175,000 depending on the garage size, finish level, and whether plumbing needs to be added. This is significantly less than building a detached ADU from scratch ($200,000-$400,000+).
- 1-car garage (400 sf): $80,000 - $120,000
- 2-car garage (500-600 sf): $110,000 - $160,000
- 2-car garage with bathroom addition: $130,000 - $175,000
- Permits and fees: $8,000 - $25,000 additional
Frequently Asked Questions - LA Garage Conversion
Do I need a permit to convert my garage to an ADU in LA?
Yes. All garage-to-ADU conversions in Los Angeles require building permits. The work must be inspected by LADBS and must meet current building codes for habitable space - including insulation, ventilation, electrical, and if adding a bathroom, plumbing.
Can I convert my garage without losing parking?
Yes. California state law prohibits local jurisdictions from requiring replacement parking when a garage is converted to an ADU. You do not need to provide a new parking space to replace the converted garage.
What is the minimum size for a garage conversion ADU?
California law requires ADUs to be at least 150 square feet. Most single-car garages are 200-250 sf and most two-car garages are 400-600 sf, so the majority of garages meet the minimum size requirement.
How long does a garage conversion permit take in Los Angeles?
Under California SB 543, LADBS must review ADU permit applications within 15 business days. Simple garage conversions using pre-approved plans can sometimes be permitted in 1-2 weeks. Full construction typically takes 3-6 months after permit approval.
What if my garage conversion is already done without a permit?
LA's ADU Amnesty Program was specifically designed for this situation. Many unpermitted garage conversions can be legalized by bringing them up to current code and obtaining retroactive permits. CCS Inc specializes in legalizing unpermitted garage conversions - contact us for a free assessment.
Ready to Convert Your Garage?
Our team of experts can help you navigate the permit process and complete your garage conversion project from start to finish.
