Domus Design Build
5.0 (32 Google reviews)
8041 Florence Ave Ste 208, Downey, CA 90240
Serves Bell · based in DowneyDesign-build
ADU Builders in Bell, CA
5 builders · ranked by Google rating and review volume · 2 CSLB license verified
★ Featured ADU builder
Featured ADU builder — this spot is open
Put your ADU company at the top of this page, in front of Bell homeowners who are comparing builders right now. Includes your logo, project photos, a direct call button and a link to your website.
Located in Los Angeles County, Bell had a 2020 Census population of about 33,559. We found 5 ADU builders and contractors that show up for Bell homeowners on Google Maps, most of them based in nearby communities. Their average Google rating is 4.9 stars. 3 market themselves specifically as ADU builders. 2 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are Domus Design Build, Cornejos Builders ADU Construction & Home Building and American Pride Builders Co..
Los Angeles leads California in ADU permits. Common projects here include garage conversions on older lots, detached backyard units on deep lots, and hillside sites where access and grading drive the cost.
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Cornejos Builders ADU Construction & Home Building
4.8 (39 Google reviews)
✔ CSLB License Verified #10651458909 Elmont Ave, Downey, CA 90240
Serves Bell · based in DowneyADU specialistRemodels & additionsHome builder
American Pride Builders Co.
4.8 (33 Google reviews)
✔ CSLB License Verified #10720943725 Firestone Blvd c, South Gate, CA 90280
Serves Bell · based in South GateGeneral contractor
Next Level Home Improvements LLC
4.8 (17 Google reviews)
8520 Florence Ave Ste E, Downey, CA 90240
Serves Bell · based in DowneyADU specialistRemodels & additionsGeneral contractor
ADU Contractor Orange County
5.0 (6 Google reviews)
Service-area business · Huntington Park
Serves Bell · based in Huntington ParkADU specialistGeneral contractor
Permits and pre-approved plans in Bell
ADU permits in Bell go through the city's building or planning department. Under AB 1332, every California city and county had to set up a pre-approved ADU plan program by January 1, 2025, so ask Bell whether it has approved plans you can use. See our pre-approved plans guide and California ADU law summary.
Planning an ADU in Bell? Start here
Bell ADU FAQ
How many ADU builders serve Bell?
Our directory lists 5 ADU builders and contractors that appear for Bell on Google Maps, including companies based in nearby Los Angeles County communities.
Do I need a permit to build an ADU in Bell?
Yes. ADUs need a building permit from the City of Bell, which must approve or deny a complete application within 60 days under state law. Many cities also offer pre-approved plans that speed up review.
How much does an ADU cost in Bell?
Most Southern California detached ADUs land around $350 to $550 per square foot all-in, garage conversions around $200 to $350, and JADUs around $50,000 to $150,000. Use our ADU cost estimator and get three itemized bids.
How are Bell ADU builders ranked here?
By Google rating weighted by the number of reviews, so a 4.9 with 200 reviews ranks above a 5.0 with 3. Featured placements are clearly labeled and don't affect the organic ranking.