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ADU Builders in Laguna Niguel, CA

44 builders · ranked by Google rating and review volume · 21 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 Laguna Niguel 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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Laguna Niguel is home to about 64,355 people (2020 Census) in Orange County. We found 44 ADU builders and contractors that show up for Laguna Niguel homeowners on Google Maps, 12 of them based in the city itself. Their average Google rating is 4.8 stars. 12 market themselves specifically as ADU builders, and 1 mention garage conversions. 21 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are Dreamcatcher Remodeling, SOCAL HOME RENOVATION and Renovex Construction.

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.

#1

Dreamcatcher Remodeling

5.0 (49 Google reviews)

31831 Camino Capistrano Ste 101 / Office 107, San Juan Capistrano, CA 92675

Serves Laguna Niguel · based in San Juan Capistrano
Remodels & additionsGeneral contractor
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#2

SOCAL HOME RENOVATION

5.0 (46 Google reviews)
✔ CSLB License Verified #1103895

32400 Crown Valley Pkwy, Dana Point, CA 92629

Serves Laguna Niguel · based in Dana Point
Remodels & additionsHome builder
CallWebsiteView profile
#4

Bud Remodeling

5.0 (26 Google reviews)
✔ CSLB License Verified #1067878

22772 Centre Dr #100, Lake Forest, CA 92630

Serves Laguna Niguel · based in Lake Forest
Remodels & additionsGeneral contractor
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#6

Kol & Co.

5.0 (24 Google reviews)

23431 Blue Bird Dr, Lake Forest, CA 92630

Serves Laguna Niguel · based in Lake Forest
Remodels & additionsHome builderGeneral contractor
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#8

Modern Creation Inc.

5.0 (16 Google reviews)
✔ CSLB License Verified #1070430

23046 Avenida De La Carlota #600, Laguna Hills, CA 92653

Serves Laguna Niguel · based in Laguna Hills
Remodels & additions
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#10

OC Quality Builders

4.9 (30 Google reviews)
✔ CSLB License Verified #1148925

22981 Triton Way Unit C, Laguna Hills, CA 92653

Serves Laguna Niguel · based in Laguna Hills
Remodels & additionsHome builderGeneral contractor
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#11

Eskan Design Build

5.0 (13 Google reviews)
✔ CSLB License Verified #1008641

26941 Cabot Rd #114, Laguna Hills, CA 92653

Serves Laguna Niguel · based in Laguna Hills
Design-buildGeneral contractor
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#20

Kash Construction Inc

5.0 (7 Google reviews)
✔ CSLB License Verified #1028459

23301 Ridge Rte Dr, Laguna Hills, CA 92653

Serves Laguna Niguel · based in Laguna Hills
Remodels & additionsGeneral contractor
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#21

SDB

5.0 (6 Google reviews)
✔ CSLB License Verified #1072529

27601 Forbes Rd #16, Laguna Niguel, CA 92677

Based in Laguna Niguel
Home builderGeneral contractor
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#22

Riviera Construction

5.0 (5 Google reviews)
✔ CSLB License Verified #824639

921 Calle Amanecer H, San Clemente, CA 92673

Serves Laguna Niguel · based in San Clemente
General contractor
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#25

Plus Home ADU

5.0 (3 Google reviews)
✔ CSLB License Verified #1062063

Service-area business · Aliso Viejo

Serves Laguna Niguel · based in Aliso Viejo
ADU specialistRemodels & additionsHome builderGeneral contractor
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#27

CCS ADU Services

5.0 (2 Google reviews)

Service-area business · San Clemente

Serves Laguna Niguel · based in San Clemente
ADU specialistHome builder
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#32

Renovateworks Inc

5.0 (2 Google reviews)

33542 Street of the Blue Lantern, Dana Point, CA 92629

Serves Laguna Niguel · based in Dana Point
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#34

DWELLO ADU INC

5.0 (1 Google reviews)

23361 Madero Ste 235, Mission Viejo, CA 92691

Serves Laguna Niguel · based in Mission Viejo
ADU specialistGeneral contractor
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#35

OC Coastal Builder

5.0 (1 Google reviews)
✔ CSLB License Verified #992307

Service-area business · Mission Viejo

Serves Laguna Niguel · based in Mission Viejo
Remodels & additionsGeneral contractor
CallView profile
#36

EA Design And Build

4.2 (5 Google reviews)
✔ CSLB License Verified #1080602

Service-area business · Rancho Santa Margarita

Serves Laguna Niguel · based in Rancho Santa Margarita
Design-build
CallWebsiteView profile
#42

Seagull Construction OC

No rating yet (0 Google reviews)
✔ CSLB License Verified #1154091

28351 Via Alfonse, Laguna Niguel, CA 92677

Based in Laguna Niguel
Remodels & additionsHome builderGeneral contractor
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Permits and pre-approved plans in Laguna Niguel

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

Planning an ADU in Laguna Niguel? Start here

How to Legalize an Unpermitted ADU in California (AB 2533)ADU Rental Income and Property Taxes in California: What to ExpectThe ADU Permit Process in California: Step by Step (2026)How Much Does It Cost to Build an ADU in Southern California?

All ADU guides →

Laguna Niguel ADU FAQ

How many ADU builders serve Laguna Niguel?

Our directory lists 44 ADU builders and contractors that appear for Laguna Niguel on Google Maps, including companies based in nearby Orange County communities.

Do I need a permit to build an ADU in Laguna Niguel?

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

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 Laguna Niguel 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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