Ultra-Unit Architectural Studio, based in Long Beach, CA, offers architecture and construction services for ADUs, residential, multifamily, and commercial projects. Led by Cameron Crockett AIA, LEED, with 25+ years experience. Free initial consultations available.
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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 of Occupancy.
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Prefab vs. stick-built ADUs explained. Homeplex offers the Clever ADU, an HCD-certified modular unit built all-electric in a factory, saving 5–6 months vs. traditional construction. Costs vary based on site conditions.
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Otto ADU is a licensed Los Angeles ADU builder specializing in garage conversions, detached ADUs, JADUs & granny flats. Serving LA County with 100+ completed units, adding avg. $185K in home value.
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New Dawn Construction is an ADU contractor specializing in detached ADUs, garage conversions, in-law suites, granny flats, JADUs, and backyard cottages. They guide homeowners through design, permitting, and construction for flexible housing solutions.
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ADUs are secondary units built on existing lots. ORR Construction builds detached ADUs, garage conversions, JADUs & in-law suites in California. Costs range $50–$300/sq ft. California laws like SB 897 simplify the permitting process.
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RD Fast Construction offers ADU garage conversions in Los Angeles, helping homeowners add property value, rental income, guest space, or housing for adult children using existing infrastructure for cost-effective results.
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OakADU is a full-service ADU contractor in Los Angeles & Southern California, offering design, permitting, construction & property management for detached ADUs, garage conversions, attached ADUs & interior conversions.
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BuildForm Design is a Los Angeles general contractor offering full-service ADU design, build, and value engineering. With 15 years of experience, they handle basement conversions, detached ADUs, garage conversions, and more across Southern California.
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Trusted ADU builder in Los Angeles County specializing in granny flats, in-law suites & garage conversions. Boost property value, earn rental income & add living space with expert, code-compliant ADU construction.
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RnD Builders is a top-rated ADU builder and design-build firm serving Ventura County and Los Angeles County, specializing in ADU construction, home additions, remodels, and outdoor projects with a client-focused approach.
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ADU Design + Build is a Los Angeles County general contractor specializing in ADU planning, design, and construction. Services include detached ADUs, garage conversions, and backyard cottages. ADUs can boost property value and generate $2,000+/month in rental income.
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Y.O.R. Construction & Investments is a licensed Southern California general contractor (Lic. #978430) offering residential & commercial services including remodeling, room additions, pool construction, and ADU/garage conversions.
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Progressive Builders LA offers full-service ADU construction in Los Angeles, handling detached ADUs, garage conversions, granny flats & in-law suites. Custom design, quality materials, on-time delivery & accessible pricing for all project sizes.
read moreSanta Monica, California is one of the most desirable coastal cities in Los Angeles County, and it comes with a unique set of challenges for ADU contractors in Santa Monica. A significant portion of the city falls within the California Coastal Zone, which means that ADU projects may require a Coastal Development Permit (CDP) in addition to standard building permits. Experienced ADU contractors familiar with Santa Monica's specific requirements are essential for homeowners looking to add accessory dwelling units to their properties.
The City of Santa Monica has adopted local ADU ordinances that align with California state law while incorporating city-specific standards. Santa Monica ADU contractors must be well-versed in the following key regulations:
Working with a licensed ADU contractor in Santa Monica who understands local building codes, the Santa Monica Department of Planning and Community Development, and the nuances of coastal construction is critical. Santa Monica enforces strict design standards to preserve neighborhood character and protect environmental resources. Local contractors are familiar with the city's requirements for energy efficiency, which must comply with California's Title 24 standards, as well as any additional green building requirements the city may impose.
Due to the high cost of living and construction in the Los Angeles area, ADU construction costs in Santa Monica tend to be higher than the state average. Homeowners should expect to budget between $300 and $500 per square foot or more, depending on the complexity of the project, site conditions, and finish levels. Permit processing times can also be longer in Santa Monica, particularly for properties in the Coastal Zone, so working with an experienced contractor who can efficiently navigate the approval process is invaluable.
When searching for the best ADU contractors near Santa Monica, homeowners should look for professionals who are:
Investing in a qualified Santa Monica ADU contractor ensures your project is completed on time, within budget, and in full compliance with all local and state regulations.