Eco Renovate Pros
5.0 (38 Google reviews)
✔ CSLB License Verified #10547543970 Atlantic Ave #203, Long Beach, CA 90807
Serves Bellflower · based in Long BeachRemodels & additionsGeneral contractor
ADU Builders in Bellflower, CA
21 builders · ranked by Google rating and review volume · 9 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 Bellflower homeowners who are comparing builders right now. Includes your logo, project photos, a direct call button and a link to your website.
Bellflower is home to about 79,190 people (2020 Census) in Los Angeles County. We found 21 ADU builders and contractors that show up for Bellflower homeowners on Google Maps, 3 of them based in the city itself. Their average Google rating is 4.8 stars. 15 market themselves specifically as ADU builders, and 3 mention garage conversions. 9 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are Eco Renovate Pros, Mariam Long Beach ADU Builders and Rockwood Remodels.
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.
No builders match that filter here yet. Try another one.
Mariam Long Beach ADU Builders
4.9 (88 Google reviews)
4806 Falcon Ave, Long Beach, CA 90807
Serves Bellflower · based in Long BeachADU specialistGeneral contractor
Rockwood Remodels
5.0 (17 Google reviews)
✔ CSLB License Verified #93441910017 Walnut St, Bellflower, CA 90706
Based in BellflowerRemodels & additionsHome builder
Ga Design Build
4.9 (29 Google reviews)
16226 Clark Ave, Bellflower, CA 90706
Based in BellflowerDesign-buildRemodels & additionsHome builderGeneral contractor
Tech Master Construction Inc
4.8 (85 Google reviews)
✔ CSLB License Verified #105460120106 Pioneer Blvd Unit F, Cerritos, CA 90703
Serves Bellflower · based in CerritosDowney ADU Builders
5.0 (8 Google reviews)
8607 Imperial Hwy., Downey, CA 90242
Serves Bellflower · based in DowneyADU specialistHome builder
ADU Certified
5.0 (8 Google reviews)
✔ CSLB License Verified #10417894201 Long Beach Blvd #422, Long Beach, CA 90807
Serves Bellflower · based in Long BeachADU specialistRemodels & additionsHome builderGeneral contractor
All Building & Construction
5.0 (8 Google reviews)
✔ CSLB License Verified #10403359744 Maple St Ste 102, Bellflower, CA 90706
Based in BellflowerNewGen ADU Builders
5.0 (7 Google reviews)
✔ CSLB License Verified #108716618000 Studebaker Rd #700, Cerritos, CA 90703
Serves Bellflower · based in CerritosADU specialistHome builder
THE ADU BUILDER INC
4.8 (21 Google reviews)
✔ CSLB License Verified #11448933639 Atlantic Ave, Long Beach, CA 90807
Serves Bellflower · based in Long BeachADU specialist
Wall Set Construction
4.8 (20 Google reviews)
✔ CSLB License Verified #107300211101 Duncan Ave, Lynwood, CA 90262
Serves Bellflower · based in LynwoodManny Walls - ADU Contractor / Garage Conversions
5.0 (3 Google reviews)
12149 1/2 Paramount Blvd, Downey, CA 90242
Serves Bellflower · based in DowneyADU specialistGarage conversionsRemodels & additionsGeneral contractor
Anaheim Master ADU Builders
5.0 (2 Google reviews)
Service-area business · Stanton
Serves Bellflower · based in StantonADU specialistHome builder
ADU Contractor & Garage Conversion
5.0 (2 Google reviews)
5440 Beach Blvd B, Buena Park, CA 90621
Serves Bellflower · based in Buena ParkADU specialistGarage conversionsHome builder
Anaheim ADU Builders
4.5 (8 Google reviews)
421 N Brookhurst St, Anaheim, CA 92801
Serves Bellflower · based in AnaheimADU specialistHome builder
ADU Contractor & Legal Garage Conversion
4.5 (2 Google reviews)
11506 Ratliffe St, Norwalk, CA 90650
Serves Bellflower · based in NorwalkADU specialistGarage conversions
Abundance Design Construction Remodeling | 리모델링 ADU 솔라
3.5 (8 Google reviews)
6904 Oran Cir, Buena Park, CA 90621
Serves Bellflower · based in Buena ParkADU specialistRemodels & additions
Buena Park ADU
No rating yet (0 Google reviews)
6925 Aragon Cir, Buena Park, CA 90620
Serves Bellflower · based in Buena ParkADU specialistHome builder
The ADU Builder
No rating yet (0 Google reviews)
✔ CSLB License Verified #11448933646 Long Beach Blvd, Long Beach, CA 90807
Serves Bellflower · based in Long BeachADU specialist
ADU MAXX
No rating yet (0 Google reviews)
4401 Atlantic Ave #200, Long Beach, CA 90807
Serves Bellflower · based in Long BeachADU specialist
ADU Construction Experts Experts
No rating yet (0 Google reviews)
15100 Paramount Blvd Ste 15124, Paramount, CA 90723
Serves Bellflower · based in ParamountADU specialist
Permits and pre-approved plans in Bellflower
ADU permits in Bellflower 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 Bellflower whether it has approved plans you can use. See our pre-approved plans guide and California ADU law summary.
Planning an ADU in Bellflower? Start here
Bellflower ADU FAQ
How many ADU builders serve Bellflower?
Our directory lists 21 ADU builders and contractors that appear for Bellflower on Google Maps, including companies based in nearby Los Angeles County communities.
Do I need a permit to build an ADU in Bellflower?
Yes. ADUs need a building permit from the City of Bellflower, 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 Bellflower?
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 Bellflower 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.