The San Diego ADU Eligibility Census

We ran 515,890 single-family lots across San Diego County through the same rules engine, setbacks, and hazard data that power our live tool. 69.5% can fit a detached ADU. Pick your neighborhood, or score your exact lot.

Eligibility by neighborhood

NeighborhoodLotsCan build
Poway9206412,52287.7%
La Mesa919418,28085.6%
Imperial Beach919322,68385%
El Cajon920208,64984.8%
Santee9207111,33784.1%
Bonita919024,72184%
Vista920835,19383.7%
Solana Beach920752,71183.6%
Alpine919014,29883%
La Mesa919426,86282.9%
Escondido920295,50682.2%
Bonsall920031,27881.4%
Del Mar920143,92781.4%
Lakeside920408,49480.3%
Lemon Grove919455,19280.2%
El Cajon920218,74080%
Encinitas9202412,09579.6%
Spring Valley9197711,39179.4%
Vista920849,20479%
San Diego921158,48478.7%
El Cajon920199,14178.4%
Escondido920256,36778.2%
San Diego9211414,39078%
Ramona920659,29477.9%
Chula Vista9191111,35577%
Carlsbad9200910,18876.2%
Carlsbad920085,41773.3%
Clairemont9211712,77573.3%
Chula Vista9191011,45072.9%
San Diego921208,01772.8%
Rancho Peñasquitos9212912,75672.3%
San Diego921103,41272%
San Marcos920698,43071.5%
University City921224,70471.2%
San Diego921117,45269.4%
San Diego921196,50269.3%
San Diego921234,78768.7%
Oceanside9205615,54768.6%
Chula Vista919143,93968.3%
Scripps Ranch921318,64767%
Vista920815,80866.3%
Oceanside920545,99166.1%
San Diego921023,65365.9%
Escondido9202611,26965.4%
Escondido9202710,74065.4%
San Diego921056,69165%
San Diego9215411,72864.9%
Carlsbad920115,71464.2%
San Diego921134,04762.4%
San Ysidro921732,04062.3%
San Marcos920788,39361.8%
Hillcrest921033,50061.6%
Cardiff920072,91760.4%
Mira Mesa9212613,08960.2%
San Diego921396,28560.1%
North Park921044,33859.3%
Spring Valley919781,70058.7%
Oceanside9205714,95358.3%
San Diego921244,64957.6%
San Diego921064,90056.6%
San Diego921289,39756.6%
Pacific Beach921094,94956.3%
Rancho Bernardo921279,99055.9%
Normal Heights921164,29455.7%
La Jolla920378,36054.2%
Point Loma921074,34451.5%
Chula Vista919139,72750.9%
Chula Vista919154,59543%
San Diego9210820225.7%
San Diego9213011,25614.9%
San Diego9210123412.8%

Every parcel evaluated with the same rules engine, setback inset, building footprints, CAL FIRE Fire Hazard Severity Zones, and FEMA flood data that power check.evoadu.com. Zoning is verified against the City of San Diego layer; outside the City of San Diego, eligibility is based on California state ADU law, parcel geometry, and hazard overlays without a city-specific zone code (the same way the live tool treats those addresses). Rules engine v1.0.0, generated 2026-07-05. More neighborhoods are added as the analysis completes.