ADU feasibility by city
ADU rules, costs & feasibility — by California city
Every city sets a different envelope for what you can build, and rents and costs swing the math. Pick your city for the 2026 rules and typical numbers, then run your exact address through the free analyzer.
Los Angeles
No parking, no owner-occupancy, 1,200 sq ftView Los Angeles rules & costs →San Diego
Bonus Program, condo sale, 1,200 sq ftView San Diego rules & costs →San Jose
Pre-approved plans, Bay Area costsView San Jose rules & costs →Sacramento
Low build cost, strong cost-to-rent ratioView Sacramento rules & costs →Oakland
Bay Area rents, lower cost than SFView Oakland rules & costs →Long Beach
400–500 ADU/yr goal, coastal rentsView Long Beach rules & costs →Fresno
Lowest build cost, pre-approved plansView Fresno rules & costs →Riverside
Zero parking required, 3-5 day permitsView Riverside rules & costs →Santa Ana
Orange County rents, tight rental marketView Santa Ana rules & costs →Bakersfield
Lowest build cost, own plan portalView Bakersfield rules & costs →Anaheim
800 sq ft by-right floor, OC rentsView Anaheim rules & costs →Irvine
Premium OC rents; check your PC zoneView Irvine rules & costs →Stockton
Low Central Valley build costView Stockton rules & costs →Modesto
Lowest build cost, same-day reviewView Modesto rules & costs →Pasadena
Standard Plans program, 18 ft near transitView Pasadena rules & costs →Glendale
LA-adjacent rents, 1,200 sq ftView Glendale rules & costs →Chula Vista
Up to 3 units on a single-family lotView Chula Vista rules & costs →Oceanside
1,000 sq ft cap, North County coastView Oceanside rules & costs →Encinitas
Coastal premium; ≤ primary homeView Encinitas rules & costs →Berkeley
East Bay rents, 25 ft attachedView Berkeley rules & costs →Fremont
Silicon Valley rents; 1,000 sf on small lotsView Fremont rules & costs →Culver City
800 sq ft cap, Westside premium rentsView Culver City rules & costs →Torrance
South Bay coastal, 1,200 sq ftView Torrance rules & costs →Burbank
Media district; 25 ft two-storyView Burbank rules & costs →Escondido
Inland SD value; parking waiver on conversionsView Escondido rules & costs →Santa Rosa
Sonoma County; attached ≤ 50%View Santa Rosa rules & costs →Sunnyvale
1,000 sq ft cap, Silicon Valley rentsView Sunnyvale rules & costs →Santa Monica
2 stories / 24 ft, top coastal rentsView Santa Monica rules & costs →More California cities on the way — run any U.S. address in the meantime.
Don't see your city?
The analyzer works on any address — it pulls your lot, setbacks, and local data and returns buildable size, cost, rent, and ROI.
New to ADU math? Read how to run the ADU numbers yourself, the detached garage cost & ROI guide, the guest house vs ADU guide, the backyard office & pool house cost guide, or the land-development pro forma guide.