Stephens Brothers Construction is Temecula & Murrieta's top ADU builder since 2011, offering detached ADUs, JADUs, garage conversions & casitas. Costs from $300–$350/sq ft. Licensed, hands-on, and serving all of Riverside County.
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Fontana General Contractors builds custom ADUs, including detached units, garage conversions, and in-law suites. They handle permits, zoning, and full construction management, helping property owners add value and flexible living space.
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Clever Tiny Homes, based in Rialto, CA, manufactures factory-built tiny homes for ADUs, backyard cottages, and granny flats. Featuring quartz kitchens and modern design, homes are built in 12 weeks with financing and delivery support included.
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Full Circle Builders offers custom ADU construction in Riverside County & the Inland Empire. Detached ADUs start at $185,000 (590 sq ft, 1BD/1BA). Container homes also available. Turn-key builds, permitting assistance included.
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ADU's by Design is an Inland Empire ADU contractor serving Riverside & San Bernardino County. They offer full-service accessory dwelling unit design & construction, including detached ADUs, garage conversions, remodeling & architectura... read more
Pomona General Contractors offers ADU construction in Pomona, including detached ADUs, attached ADUs, and garage conversions. Services cover permitting, 3D design, energy-efficient builds, and full construction management for granny flats, in-law ... read more
Peck General Construction builds ADUs in Orange County, Los Angeles & Inland Empire. Services include garage conversions, detached backyard cottages & granny flats. Full-service from permits to final inspection under a Design-Build model.<... read more
The Springfield by Superior ADUs is a 2-bed, 2-bath detached ADU with open-concept living, vaulted ceilings, mini-split HVAC, kitchen island, ample storage, and optional ethanol fireplace—ideal as a granny flat or in-law suite.
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ADU Custom Homes is a licensed California ADU contractor with 35+ years of experience serving LA, Orange & Riverside counties. They specialize in detached ADUs, garage conversions & additions, managing projects from permits to Certificate ... read more
The ADU Pro® is a licensed ADU contractor in Chino, CA, serving Fontana and Southern California. Specializing exclusively in ADU construction, they offer detached ADUs, garage conversions, and granny flats with a lifetime transferable warranty.read more
B&A Construction Inc. is a licensed general contractor in Manteca, CA, with 35 years of experience. Services include ADU construction, garage conversions, kitchen & bathroom remodeling, and room additions across San Joaquin and Central Val... read more
OC Builders Group specializes in ADU construction in California, offering detached ADUs, garage conversions, granny flats & in-law suites. They help homeowners navigate permits, zoning & state regulations to add rental income or housing va... read more
SouthStar USA offers ADU construction in Riverside & Orange County, CA. Services include detached ADUs, attached ADUs, garage conversions & JADUs. Quality builds, permit-compliant, with transparent pricing for every project stage.
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Easton Designs and Consulting (EDC) is an Orange County, CA home design, architecture, and remodeling firm. Services include ADU construction, kitchen remodels, room additions, pools, and outdoor living. Free consultations available.
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Bergstrom Construction Inc. builds custom ADUs in Apple Valley, Victorville & Hesperia. Serving San Bernardino County, they offer in-law suites, backyard cottages, home offices & garage additions tailored to High Desert homeowners.
read moreCalimesa is a small, charming city nestled in the San Gorgonio Pass area of Riverside County, California. Known for its semi-rural character, scenic hillside terrain, and proximity to both the San Bernardino Mountains and Palm Springs, Calimesa presents unique opportunities and challenges for ADU (Accessory Dwelling Unit) contractors. The city's relatively low-density residential neighborhoods and larger lot sizes make it an attractive location for homeowners looking to add ADUs, whether for rental income, multigenerational living, or increased property value.
ADU contractors working in Calimesa must navigate both California state ADU laws and the City of Calimesa's local zoning and building codes. California's statewide ADU legislation, including AB 68 and SB 9, has streamlined the approval process significantly, but local requirements still apply. In Calimesa, ADU projects must comply with the city's zoning ordinances, which are administered through the Calimesa Community Development Department. Key considerations include:
Given the city's landscape and lot configurations, experienced ADU contractors in Calimesa frequently work on a variety of ADU types. The most popular options include:
Hiring a licensed ADU contractor familiar with Calimesa is essential for a smooth construction process. Local contractors understand the specific soil conditions, grading challenges posed by the hilly terrain, and the fire hazard severity zones that affect parts of the city. They are also well-versed in working with local utility providers and the Calimesa Building and Safety Division to ensure timely permit approvals.
Whether you're looking to build a new detached ADU, convert your garage, or add a junior ADU to your Calimesa home, working with a knowledgeable local contractor can save you time, money, and stress. Always verify that your contractor holds a valid California contractor's license (CSLB) and carries proper insurance before beginning any ADU project.