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ADU Builders in Buena Park, CA

52 builders · ranked by Google rating and review volume · 25 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 Buena Park homeowners who are comparing builders right now. Includes your logo, project photos, a direct call button and a link to your website.

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Located in Orange County, Buena Park had a 2020 Census population of about 84,034. We found 52 ADU builders and contractors that show up for Buena Park homeowners on Google Maps, 4 of them based in the city itself. Their average Google rating is 4.8 stars. 31 market themselves specifically as ADU builders, and 5 mention garage conversions. 25 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are John Christopher Construction, Inc., ADU West Coast and Hybrid Renovations.

In Orange County, HOA and design-standard questions come up often. State law voids CC&Rs that ban ADUs, but HOAs can still apply reasonable objective standards. Compact lots make attached units and garage conversions popular.

#2

ADU West Coast

5.0 (37 Google reviews)
✔ CSLB License Verified #1064076

13001 Seal Beach Blvd #210, Seal Beach, CA 90740

Serves Buena Park · based in Seal Beach
ADU specialistHome builderGeneral contractor
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#3

Hybrid Renovations

4.9 (162 Google reviews)
✔ CSLB License Verified #1134177

10350 Heritage Park Dr Ste 204, Santa Fe Springs, CA 90670

Serves Buena Park · based in Santa Fe Springs
Remodels & additionsGeneral contractor
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#8

Ga Design Build

4.9 (29 Google reviews)

16226 Clark Ave, Bellflower, CA 90706

Serves Buena Park · based in Bellflower
Design-buildRemodels & additionsHome builderGeneral contractor
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#9

Vision ADU

5.0 (14 Google reviews)
✔ CSLB License Verified #1115842

1440 S State College Blvd #6h, Anaheim, CA 92806

Serves Buena Park · based in Anaheim
ADU specialist
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#25

NewGen ADU Builders

5.0 (7 Google reviews)
✔ CSLB License Verified #1087166

18000 Studebaker Rd #700, Cerritos, CA 90703

Serves Buena Park · based in Cerritos
ADU specialistHome builder
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#30

ADUscale

5.0 (4 Google reviews)

528 W Hampshire Ave, Anaheim, CA 92805

Serves Buena Park · based in Anaheim
ADU specialistHome builder
CallWebsiteView profile
#31

XactBuilt ADU & Construction

5.0 (4 Google reviews)
✔ CSLB License Verified #1092832

11721 Whittier Blvd suite 170, Whittier, CA 90601

Serves Buena Park · based in Whittier
ADU specialistRemodels & additionsHome builderGeneral contractor
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#33

The ADU Pro

4.7 (15 Google reviews)
✔ CSLB License Verified #1128679

15338 Central Ave, Chino, CA 91710

Serves Buena Park · based in Chino
ADU specialistHome builderGeneral contractor
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#43

KoBolt Construction

4.6 (11 Google reviews)
✔ CSLB License Verified #1024785

406 E Commonwealth Ave #3, Fullerton, CA 92832

Serves Buena Park · based in Fullerton
Remodels & additionsHome builderGeneral contractor
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#47

Apex Construction

3.7 (6 Google reviews)
✔ CSLB License Verified #1020301

Service-area business · La Habra

Serves Buena Park · based in La Habra
ADU specialistRemodels & additionsGeneral contractor
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#51

aducustomhomes

No rating yet (0 Google reviews)
✔ CSLB License Verified #530033

5199 CA-1, Long Beach, CA 90804

Serves Buena Park · based in Long Beach
ADU specialistHome builder
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Permits and pre-approved plans in Buena Park

ADU permits in Buena Park 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 Buena Park whether it has approved plans you can use. See our pre-approved plans guide and California ADU law summary.

Planning an ADU in Buena Park? Start here

ADU Rental Income and Property Taxes in California: What to ExpectHow to Legalize an Unpermitted ADU in California (AB 2533)SB 9 vs ADU: Lot Splits, Duplexes and Backyard Units in CaliforniaPrefab and Modular ADUs in California: Real Costs, Permits and Pitfalls

All ADU guides →

Buena Park ADU FAQ

How many ADU builders serve Buena Park?

Our directory lists 52 ADU builders and contractors that appear for Buena Park on Google Maps, including companies based in nearby Orange County communities.

Do I need a permit to build an ADU in Buena Park?

Yes. ADUs need a building permit from the City of Buena Park, 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 Buena Park?

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 Buena Park 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.

Nearby cities in Orange County

Anaheim 114Santa Ana 97Irvine 107Huntington Beach 88Garden Grove 97Fullerton 23Orange 95Costa Mesa 103Mission Viejo 59Westminster 53Lake Forest 60Newport Beach 96
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