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ADU Builders in Lake Elsinore, CA

20 builders · ranked by Google rating and review volume · 10 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 Lake Elsinore homeowners who are comparing builders right now. Includes your logo, project photos, a direct call button and a link to your website.

Lake Elsinore is home to about 70,265 people (2020 Census) in Riverside County. We found 20 ADU builders and contractors that show up for Lake Elsinore homeowners on Google Maps, 2 of them based in the city itself. Their average Google rating is 4.8 stars. 2 market themselves specifically as ADU builders. 10 have a matched, active CSLB license shown with a verified badge. The top-rated by our review-weighted score are Box Construction, New Empire Design Center, Inc. and Stephens Brothers Construction Inc..

Inland lots in Riverside County tend to be larger, which suits detached ADUs and multigenerational layouts. Summer heat makes insulation, roof design and HVAC sizing worth discussing with your builder.

#1

Box Construction

5.0 (64 Google reviews)
✔ CSLB License Verified #1025899

30906 Wealth St, Murrieta, CA 92563

Serves Lake Elsinore · based in Murrieta
Remodels & additionsHome builderGeneral contractor
#4

D & K Builders

5.0 (17 Google reviews)

Service-area business · Lake Elsinore

Serves Lake Elsinore · based in Lake Elsinore
Remodels & additionsHome builderGeneral contractor
#7

Fairway Construction

5.0 (8 Google reviews)
✔ CSLB License Verified #1004144

33306 Willow Tree Ln, Wildomar, CA 92595

Serves Lake Elsinore · based in Wildomar
Remodels & additionsHome builderGeneral contractor
#11

Habchi Contractor

5.0 (6 Google reviews)
✔ CSLB License Verified #1101474

Service-area business · Lake Elsinore

Serves Lake Elsinore · based in Lake Elsinore
Remodels & additionsHome builderGeneral contractor
#12

BLD Builders, Inc.

5.0 (4 Google reviews)
✔ CSLB License Verified #1025606

25695 Jefferson Ave #16, Murrieta, CA 92562

Serves Lake Elsinore · based in Murrieta
Remodels & additionsGeneral contractor
#16

One Stop Home Repairs

5.0 (1 Google reviews)
✔ CSLB License Verified #1162650

Service-area business · Lake Elsinore

Serves Lake Elsinore · based in Lake Elsinore
Remodels & additionsGeneral contractor

Permits and pre-approved plans in Lake Elsinore

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

Planning an ADU in Lake Elsinore? Start here

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Lake Elsinore ADU FAQ

How many ADU builders serve Lake Elsinore?

Our directory lists 20 ADU builders and contractors that appear for Lake Elsinore on Google Maps, including companies based in nearby Riverside County communities.

Do I need a permit to build an ADU in Lake Elsinore?

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

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 Lake Elsinore 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 Riverside County

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