A free report for any address in Southern California: the ADUs that fit, where they go, the fees, the plans already approved, and how ready the property is for fire season.
Free. On screen in seconds, no account needed. Full reports in Los Angeles County; Orange and San Diego counties get the state rules with the parcel, the home outline and the fire zone.
Every report says which rules it used, so you always know what we checked.
Tell me when my city is addedCity of Los Angeles and unincorporated LA County. More cities each month.
State rules now. City rules for Irvine, Anaheim, Santa Ana and Huntington Beach first.
State rules now. City of San Diego first.
Detached, attached and junior ADUs, conversions, and a backyard office. Where each one fits, with its height, setbacks and fees.
Check my propertyYour fire hazard zone, the Zone 0 rules for the first 5 ft around the home, and the work that matters most.
Check fire readinessCity pre-approved plans and backyard offices that fit the space behind your home, drawn to scale.
Browse plansEverything a designer would ask you on the first call, checked against your property and the rules in force today.
Zone, size and shape of the property, the existing home and garage, and whether you are in a hillside, fire, coastal or historic area.
A detached ADU, a garage conversion, an attached ADU and a junior ADU inside the home, each with the size and height allowed.
A drawing of your property with the space a detached ADU can use, 4 feet from the side and back.
Which fees apply and which do not. Since January 2026 there are no city impact fees on an ADU of 750 square feet or less.
The LA City and LA County plans that fit your property, ready to submit, so you skip most of the design time.
ADUCheck is a free report for any address in Los Angeles: which ADUs fit, where a detached ADU can go, which fees you pay and the pre-approved plans that fit. The video shows an example report.
Example report shown. A report is not a permit; the City decides every application.
LA City and LA County publish plans that are already approved. Pick one and the city reviews only how it sits on your property.
Free report in seconds: what fits, where it goes, what fees apply.
Filter the pre-approved plans by size, bedrooms and stories. Save the ones you like.
Ask our partner architects and builders for a price. You choose who to talk to.
The city has 15 business days to say if your application is complete and 60 days to decide.
New state laws took effect this year. Every report applies them.
Read the full guideNo impact fees on an ADU of 750 sq ft or less, or a junior ADU of 500 sq ft or less, measured as interior living space. No school fees at 500 sq ft or less.
15 business days to tell you if the application is complete, with a list of what is missing. A written appeal if you disagree.
On a single-family property you can build a converted ADU, a junior ADU and a detached ADU together.
If the junior ADU has its own bathroom, the owner no longer has to live on the property. Rentals must be longer than 30 days.
If your property is zoned RD or R3, or large enough to split, it may fit several new homes. Vivienda builds four homes on a typical 50 by 150 foot property and buys property to do it.
List your pre-approved plans for free and get requests from people who already know what fits.
