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ADU Builders in San Clemente, CA

12 builders · ranked by Google rating and review volume · 3 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 Clemente 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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San Clemente is home to about 64,293 people (2020 Census) in Orange County. We found 12 ADU builders and contractors that show up for San Clemente homeowners on Google Maps, most of them based in nearby communities. Their average Google rating is 4.8 stars. 5 market themselves specifically as ADU builders, and 1 mention garage conversions. 3 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 San Clemente · based in San Juan Capistrano
Remodels & additionsGeneral contractor
CallWebsiteView profile
#2

SOCAL HOME RENOVATION

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

32400 Crown Valley Pkwy, Dana Point, CA 92629

Serves San Clemente · based in Dana Point
Remodels & additionsHome builder
CallWebsiteView profile
#8

CCS ADU Services

5.0 (2 Google reviews)

Service-area business · San Clemente

Serves San Clemente · based in San Clemente
ADU specialistHome builder
CallView profile

Permits and pre-approved plans in San Clemente

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

Planning an ADU in San Clemente? Start here

Prefab and Modular ADUs in California: Real Costs, Permits and PitfallsHow Long Does It Take to Build an ADU in Southern California?The ADU Permit Process in California: Step by Step (2026)AB 1033: Can You Sell an ADU Separately in California?

All ADU guides →

San Clemente ADU FAQ

How many ADU builders serve San Clemente?

Our directory lists 12 ADU builders and contractors that appear for San Clemente on Google Maps, including companies based in nearby Orange County communities.

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

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

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 Clemente 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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