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ADU Builders in San Juan Capistrano, CA

30 builders · ranked by Google rating and review volume · 13 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 San Juan Capistrano 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, San Juan Capistrano had a 2020 Census population of about 35,196. We found 30 ADU builders and contractors that show up for San Juan Capistrano homeowners on Google Maps, 2 of them based in the city itself. Their average Google rating is 4.9 stars. 9 market themselves specifically as ADU builders, and 1 mention garage conversions. 13 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.

#2

SOCAL HOME RENOVATION

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

32400 Crown Valley Pkwy, Dana Point, CA 92629

Serves San Juan Capistrano · based in Dana Point
Remodels & additionsHome builder
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#5

Kol & Co.

5.0 (24 Google reviews)

23431 Blue Bird Dr, Lake Forest, CA 92630

Serves San Juan Capistrano · based in Lake Forest
Remodels & additionsHome builderGeneral contractor
CallWebsiteView profile
#7

OC Quality Builders

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

22981 Triton Way Unit C, Laguna Hills, CA 92653

Serves San Juan Capistrano · based in Laguna Hills
Remodels & additionsHome builderGeneral contractor
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#8

IGS Construction

5.0 (14 Google reviews)
✔ CSLB License Verified #1087602

23362 Madero # L, Mission Viejo, CA 92691

Serves San Juan Capistrano · based in Mission Viejo
Remodels & additionsHome builderGeneral contractor
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#9

Eskan Design Build

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

26941 Cabot Rd #114, Laguna Hills, CA 92653

Serves San Juan Capistrano · based in Laguna Hills
Design-buildGeneral contractor
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#15

Excel Design & Build

5.0 (6 Google reviews)
✔ CSLB License Verified #956734

25108 Marguerite Pkwy STE. A #4, Mission Viejo, CA 92692

Serves San Juan Capistrano · based in Mission Viejo
Design-buildGeneral contractor
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#16

SDB

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

27601 Forbes Rd #16, Laguna Niguel, CA 92677

Serves San Juan Capistrano · based in Laguna Niguel
Home builderGeneral contractor
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#18

Plus Home ADU

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

Service-area business · Aliso Viejo

Serves San Juan Capistrano · based in Aliso Viejo
ADU specialistRemodels & additionsHome builderGeneral contractor
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#20

CCS ADU Services

5.0 (2 Google reviews)

Service-area business · San Clemente

Serves San Juan Capistrano · based in San Clemente
ADU specialistHome builder
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#24

Renovateworks Inc

5.0 (2 Google reviews)

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

Serves San Juan Capistrano · based in Dana Point
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#26

DWELLO ADU INC

5.0 (1 Google reviews)

23361 Madero Ste 235, Mission Viejo, CA 92691

Serves San Juan Capistrano · based in Mission Viejo
ADU specialistGeneral contractor
CallWebsiteView profile
#29

Arch Construction

No rating yet (0 Google reviews)
✔ CSLB License Verified #944285

Service-area business · Dana Point

Serves San Juan Capistrano · based in Dana Point
CallWebsiteView profile
#30

Seagull Construction OC

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

28351 Via Alfonse, Laguna Niguel, CA 92677

Serves San Juan Capistrano · based in Laguna Niguel
Remodels & additionsHome builderGeneral contractor
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Permits and pre-approved plans in San Juan Capistrano

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

Planning an ADU in San Juan Capistrano? Start here

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San Juan Capistrano ADU FAQ

How many ADU builders serve San Juan Capistrano?

Our directory lists 30 ADU builders and contractors that appear for San Juan Capistrano on Google Maps, including companies based in nearby Orange County communities.

Do I need a permit to build an ADU in San Juan Capistrano?

Yes. ADUs need a building permit from the City of San Juan Capistrano, 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 San Juan Capistrano?

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 San Juan Capistrano 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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