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ADU Builders in Carson, CA

98 builders ยท ranked by Google rating and review volume ยท 50 CSLB license verified

โ˜… Featured ADU builder

Featured ADU builder โ€” this spot is open

Put your ADU company at the top of this page, in front of Carson 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 Los Angeles County, Carson had a 2020 Census population of about 95,558. We found 98 ADU builders and contractors that show up for Carson homeowners on Google Maps, 3 of them based in the city itself. Their average Google rating is 4.8 stars. 37 market themselves specifically as ADU builders, and 7 mention garage conversions. 50 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are Home Remodeling Builders, SHINE INVEST and Envision More Renovations.

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.

#1

Home Remodeling Builders

5.0 (85 Google reviews)
โœ” CSLB License Verified #1131012

1500 Rosecrans Ave #500, Manhattan Beach, CA 90266

Serves Carson ยท based in Manhattan Beach
Remodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#2

SHINE INVEST

5.0 (62 Google reviews)
โœ” CSLB License Verified #1079290

1230 Rosecrans Ave, Manhattan Beach, CA 90266

Serves Carson ยท based in Manhattan Beach
Remodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#4

ADU West Coast

5.0 (37 Google reviews)
โœ” CSLB License Verified #1064076

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

Serves Carson ยท based in Seal Beach
ADU specialistHome builderGeneral contractor
CallWebsiteView profile
#5

Direct ADU

5.0 (36 Google reviews)

11853 S Inglewood Ave, Hawthorne, CA 90250

Serves Carson ยท based in Hawthorne
ADU specialistGarage conversionsHome builder
CallWebsiteView profile
#8

RS Construction

5.0 (26 Google reviews)
โœ” CSLB License Verified #944870

6052 Buell St, Bell Gardens, CA 90201

Serves Carson ยท based in Bell Gardens
Remodels & additionsGeneral contractor
CallWebsiteView profile
#15

MTZ Contractors

5.0 (17 Google reviews)
โœ” CSLB License Verified #1028881

3515 Atlantic Ave #1019, Long Beach, CA 90807

Serves Carson ยท based in Long Beach
Remodels & additionsGeneral contractor
CallWebsiteView profile
#18

Ga Design Build

4.9 (29 Google reviews)

16226 Clark Ave, Bellflower, CA 90706

Serves Carson ยท based in Bellflower
Design-buildRemodels & additionsHome builderGeneral contractor
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#20

Orr Construction Company

5.0 (13 Google reviews)
โœ” CSLB License Verified #1028720

1977 Obispo Ave, Signal Hill, CA 90755

Serves Carson ยท based in Signal Hill
Remodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#29

ADU Certified

5.0 (8 Google reviews)
โœ” CSLB License Verified #1041789

4201 Long Beach Blvd #422, Long Beach, CA 90807

Serves Carson ยท based in Long Beach
ADU specialistRemodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#31

Ohka Construction

5.0 (8 Google reviews)
โœ” CSLB License Verified #1131944

3711 Long Beach Blvd, Long Beach, CA 90807

Serves Carson ยท based in Long Beach
General contractor
CallWebsiteView profile
#33

Golden State Construction

4.8 (26 Google reviews)
โœ” CSLB License Verified #1142466

1565 Vรญa Leon, Palos Verdes Estates, CA 90274

Serves Carson ยท based in Palos Verdes Estates
Remodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#35

ADU Homes, Inc.

4.9 (11 Google reviews)
โœ” CSLB License Verified #1098802

245 E 3rd St, Long Beach, CA 90802

Serves Carson ยท based in Long Beach
ADU specialistHome builder
CallWebsiteView profile
#37

NewGen ADU Builders

5.0 (7 Google reviews)
โœ” CSLB License Verified #1087166

18000 Studebaker Rd #700, Cerritos, CA 90703

Serves Carson ยท based in Cerritos
ADU specialistHome builder
CallView profile
#39

T&N Remodeling PV

5.0 (7 Google reviews)

29224 Firthridge Rd, Rancho Palos Verdes, CA 90275

Serves Carson ยท based in Rancho Palos Verdes
Remodels & additionsGeneral contractor
CallWebsiteView profile
#47

Aztec's Construction

5.0 (5 Google reviews)
โœ” CSLB License Verified #1055405

Service-area business ยท Rancho Palos Verdes

Serves Carson ยท based in Rancho Palos Verdes
Home builder
CallWebsiteView profile
#55

Cover

4.7 (23 Google reviews)
โœ” CSLB License Verified #1039029

1415 W 178th St, Gardena, CA 90248

Serves Carson ยท based in Gardena
Prefab / modularHome builderGeneral contractor
CallWebsiteView profile
#56

MTR Construction, Inc.

4.7 (15 Google reviews)
โœ” CSLB License Verified #929602

1711 E 20th St, Signal Hill, CA 90755

Serves Carson ยท based in Signal Hill
Remodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#57

Rudy's Construction Inc.

4.7 (14 Google reviews)
โœ” CSLB License Verified #1036421

29000 S Western Ave, Rancho Palos Verdes, CA 90275

Serves Carson ยท based in Rancho Palos Verdes
Remodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#67

Builders Trust Construction

5.0 (2 Google reviews)
โœ” CSLB License Verified #1080695

Service-area business ยท Lawndale

Serves Carson ยท based in Lawndale
Remodels & additionsGeneral contractor
CallView profile
#71

Fiero Development

4.5 (4 Google reviews)
โœ” CSLB License Verified #1155500

11029 Atlantic Ave, Lynwood, CA 90262

Serves Carson ยท based in Lynwood
General contractor
CallView profile
#81

Buena Park ADU

No rating yet (0 Google reviews)

6925 Aragon Cir, Buena Park, CA 90620

Serves Carson ยท based in Buena Park
ADU specialistHome builder
CallView profile
#82

The ADU Builder

No rating yet (0 Google reviews)
โœ” CSLB License Verified #1144893

3646 Long Beach Blvd, Long Beach, CA 90807

Serves Carson ยท based in Long Beach
ADU specialist
CallWebsiteView profile
#83

ADU MAXX

No rating yet (0 Google reviews)

4401 Atlantic Ave #200, Long Beach, CA 90807

Serves Carson ยท based in Long Beach
ADU specialist
CallWebsiteView profile
#85

aducustomhomes

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

5199 CA-1, Long Beach, CA 90804

Serves Carson ยท based in Long Beach
ADU specialistHome builder
CallWebsiteView profile
#86

ADU

No rating yet (0 Google reviews)

13809 Actina Ave, Bellflower, CA 90706

Serves Carson ยท based in Bellflower
ADU specialist
View profile
#94

ADU Bros

No rating yet (0 Google reviews)

Service-area business ยท Hawthorne

Serves Carson ยท based in Hawthorne
ADU specialist
CallWebsiteView profile
#98

MaxxADU

No rating yet (0 Google reviews)

Service-area business ยท Lawndale

Serves Carson ยท based in Lawndale
ADU specialist
CallWebsiteView profile

Permits and pre-approved plans in Carson

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

Planning an ADU in Carson? Start here

How Long Does It Take to Build an ADU in Southern California?Garage Conversion ADU Cost in Southern California (and What Drives It)The ADU Permit Process in California: Step by Step (2026)How to Choose an ADU Builder in Southern California: 15-Point Checklist

All ADU guides โ†’

Carson ADU FAQ

How many ADU builders serve Carson?

Our directory lists 98 ADU builders and contractors that appear for Carson on Google Maps, including companies based in nearby Los Angeles County communities.

Do I need a permit to build an ADU in Carson?

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

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 Carson 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 Los Angeles County

Los Angeles 118Long Beach 119Santa Clarita 27Glendale 117Lancaster 12Palmdale 12Pomona 67Torrance 98Pasadena 100Downey 28West Covina 68El Monte 24
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