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ADU Builders in Los Angeles, CA

118 builders · ranked by Google rating and review volume · 35 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 Los Angeles 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, Los Angeles had a 2020 Census population of about 3,898,747. We found 118 ADU builders and contractors that show up for Los Angeles homeowners on Google Maps, 23 of them based in the city itself. Their average Google rating is 4.9 stars. 103 market themselves specifically as ADU builders, and 10 mention garage conversions. 35 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are GreatBuildz, A1 ADU Contractor and ADU West Coast.

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

GreatBuildz

5.0 (98 Google reviews)

17141 Ventura Blvd, Encino, CA 91316

Serves Los Angeles · based in Encino
Garage conversionsRemodels & additionsHome builderGeneral contractor
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#2

A1 ADU Contractor

5.0 (42 Google reviews)

13701 Riverside Dr #200, Sherman Oaks, CA 91423

Serves Los Angeles · based in Sherman Oaks
ADU specialistGarage conversionsRemodels & additionsHome builderGeneral contractor
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#3

ADU West Coast

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

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

Serves Los Angeles · based in Seal Beach
ADU specialistHome builderGeneral contractor
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#4

Direct ADU

5.0 (36 Google reviews)

11853 S Inglewood Ave, Hawthorne, CA 90250

Serves Los Angeles · based in Hawthorne
ADU specialistGarage conversionsHome builder
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#7

AP Remodeling Inc.

4.9 (158 Google reviews)
✔ CSLB License Verified #1049032

5972 Washington Blvd, Culver City, CA 90232

Serves Los Angeles · based in Culver City
Garage conversionsRemodels & additionsHome builderGeneral contractor
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#8

ADU Concepts

5.0 (30 Google reviews)
✔ CSLB License Verified #1018294

18375 Ventura Blvd, Tarzana, CA 91356

Serves Los Angeles · based in Tarzana
ADU specialist
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#9

NEO Builders Inc

4.9 (135 Google reviews)
✔ CSLB License Verified #1114778

12725 Califa St, Valley Village, CA 91607

Serves Los Angeles · based in Valley Village
ADU specialistRemodels & additionsHome builderGeneral contractor
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#15

ADU Builders Today

4.9 (61 Google reviews)

1346 Foothill Blvd #407, La Cañada Flintridge, CA 91011

Serves Los Angeles · based in La Cañada Flintridge
ADU specialistGeneral contractor
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#19

M.E.Development, Inc.

5.0 (17 Google reviews)
✔ CSLB License Verified #992342

6015 Washington Blvd, Culver City, CA 90232

Serves Los Angeles · based in Culver City
Remodels & additionsHome builderGeneral contractor
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#22

Backyard Estates

4.9 (30 Google reviews)
✔ CSLB License Verified #1076065

2335 W Foothill Blvd #18, Upland, CA 91786

Serves Los Angeles · based in Upland
Home builder
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#23

Vision ADU

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

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

Serves Los Angeles · based in Anaheim
ADU specialist
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#30

A+ Home Additions

4.8 (130 Google reviews)

9675 Brighton Way #292, Beverly Hills, CA 90210

Serves Los Angeles · based in Beverly Hills
Remodels & additionsGeneral contractor
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#35

AV Builders

5.0 (11 Google reviews)
✔ CSLB License Verified #1129440

4821 Lankershim Blvd Ste. F #445, North Hollywood, CA 91601

Serves Los Angeles · based in North Hollywood
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#36

ADU by Kn Remodeling

5.0 (11 Google reviews)

19709 Ventura Blvd Unit 202, Woodland Hills, CA 91364

Serves Los Angeles · based in Woodland Hills
ADU specialistRemodels & additionsHome builder
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#37

EG Modern Construction

5.0 (10 Google reviews)
✔ CSLB License Verified #1115851

421 E Elmwood Ave H, Burbank, CA 91501

Serves Los Angeles · based in Burbank
ADU specialistRemodels & additionsHome builderGeneral contractor
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#42

Westlake ADU LLC

5.0 (9 Google reviews)
✔ CSLB License Verified #1119001

10720 Haskell Ave, Granada Hills, CA 91344

Serves Los Angeles · based in Granada Hills
ADU specialistGeneral contractor
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#45

ADU Certified

5.0 (8 Google reviews)
✔ CSLB License Verified #1041789

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

Serves Los Angeles · based in Long Beach
ADU specialistRemodels & additionsHome builderGeneral contractor
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#52

ADU Homes, Inc.

4.9 (11 Google reviews)
✔ CSLB License Verified #1098802

245 E 3rd St, Long Beach, CA 90802

Serves Los Angeles · based in Long Beach
ADU specialistHome builder
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#54

NewGen ADU Builders

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

18000 Studebaker Rd #700, Cerritos, CA 90703

Serves Los Angeles · based in Cerritos
ADU specialistHome builder
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#61

The ADU Company

5.0 (6 Google reviews)
✔ CSLB License Verified #1118354

504 E Navilla Pl, Covina, CA 91723

Serves Los Angeles · based in Covina
ADU specialistRemodels & additionsHome builderGeneral contractor
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#66

XactBuilt ADU & Construction

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

11721 Whittier Blvd suite 170, Whittier, CA 90601

Serves Los Angeles · based in Whittier
ADU specialistRemodels & additionsHome builderGeneral contractor
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#68

The ADU Pro

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

15338 Central Ave, Chino, CA 91710

Serves Los Angeles · based in Chino
ADU specialistHome builderGeneral contractor
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#76

ADU Company

5.0 (3 Google reviews)

5718 Woodman Ave #4, Van Nuys, CA 91401

Serves Los Angeles · based in Van Nuys
ADU specialistGeneral contractor
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#82

A.D.U. Builders

5.0 (2 Google reviews)
✔ CSLB License Verified #1080549

217 E Victoria Ave, Montebello, CA 90640

Serves Los Angeles · based in Montebello
ADU specialist
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#84

Eazy ADU

5.0 (2 Google reviews)
✔ CSLB License Verified #1057881

5670 Wilshire Blvd Ste 1801, Los Angeles, CA 90036

Based in Los Angeles
ADU specialistHome builderGeneral contractor
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#87

D-Best ADU Company

5.0 (2 Google reviews)

2626 Foothill Blvd, La Crescenta-Montrose, CA 91214

Serves Los Angeles · based in La Crescenta-Montrose
ADU specialist
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#89

Otto ADU

4.6 (13 Google reviews)
✔ CSLB License Verified #1081287

2926 Denby Ave Unit B, Los Angeles, CA 90039

Based in Los Angeles
ADU specialist
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#93

ADU Services

5.0 (1 Google reviews)

8748 Holloway Dr Ste 120, West Hollywood, CA 90069

Serves Los Angeles · based in West Hollywood
ADU specialistHome builder
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#94

ADU Design

5.0 (1 Google reviews)

1116 N Spaulding Ave, West Hollywood, CA 90046

Serves Los Angeles · based in West Hollywood
ADU specialistGeneral contractor
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#102

BlackRock Builder

4.4 (7 Google reviews)
✔ CSLB License Verified #1042149

Service-area business · Los Angeles

Serves Los Angeles · based in Los Angeles
Remodels & additionsHome builderGeneral contractor
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#103

MF ADU

3.0 (2 Google reviews)

1979 Lake Ave, Altadena, CA 91001

Serves Los Angeles · based in Altadena
ADU specialistHome builder
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#105

ADU Design

3.0 (2 Google reviews)

1262 Sunset Plaza Dr, Los Angeles, CA 90069

Based in Los Angeles
ADU specialistGeneral contractor
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#107

Buena Park ADU

No rating yet (0 Google reviews)

6925 Aragon Cir, Buena Park, CA 90620

Serves Los Angeles · based in Buena Park
ADU specialistHome builder
CallView profile
#108

The ADU Builder

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

3646 Long Beach Blvd, Long Beach, CA 90807

Serves Los Angeles · based in Long Beach
ADU specialist
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#109

ADU MAXX

No rating yet (0 Google reviews)

4401 Atlantic Ave #200, Long Beach, CA 90807

Serves Los Angeles · based in Long Beach
ADU specialist
CallWebsiteView profile
#112

The ADU Factory

No rating yet (0 Google reviews)

1504 S Fairfax Ave Unit 10, Los Angeles, CA 90019

Based in Los Angeles
ADU specialistPrefab / modular
CallView profile
#114

Kavo ADU

No rating yet (0 Google reviews)

5919 W 3rd St Ste 2B, Los Angeles, CA 90036

Based in Los Angeles
ADU specialistRemodels & additionsHome builderGeneral contractor
CallWebsiteView profile

Los Angeles ADU programs and pre-approved plans

Links verified November 2026. Program details change, so confirm current status with the city. See all SoCal pre-approved ADU plan programs.

Planning an ADU in Los Angeles? Start here

How Long Does It Take to Build an ADU in Southern California?ADU Rental Income and Property Taxes in California: What to ExpectAB 1033: Can You Sell an ADU Separately in California?How to Legalize an Unpermitted ADU in California (AB 2533)

All ADU guides →

Los Angeles ADU FAQ

How many ADU builders serve Los Angeles?

Our directory lists 118 ADU builders and contractors that appear for Los Angeles on Google Maps, including companies based in nearby Los Angeles County communities.

Do I need a permit to build an ADU in Los Angeles?

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

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 Los Angeles 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

Long Beach 119Santa Clarita 27Glendale 117Lancaster 12Palmdale 12Pomona 67Torrance 98Pasadena 100Downey 28West Covina 68El Monte 24Inglewood 46
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