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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OC Master ADU Construction builds ADUs across Orange County, offering detached units, garage conversions, JADUs & attached additions. Services include design, permitting & full construction management for rental income or family housing.
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ADU Homes is a full-service ADU contractor in Los Angeles & Orange County offering design-build solutions. They handle design, permitting & construction with fixed pricing. Options include studios, 1-3 bed units & carriage units.
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Create Construction is a licensed, family-owned ADU contractor serving Los Angeles, Orange, and Ventura Counties. They specialize in garage conversions, granny flats, and attached ADUs, managing design, permits, and construction from start to finish.
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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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Willbii is a California ADU contractor specializing in granny flats, garage conversions, and in-law suites. They guide homeowners from consultation to construction, handling permits and design. ADUs can generate up to $5,000/month in rental income.
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Sierra Construction & Design builds custom ADUs, including guest houses, in-law suites, garage conversions & JADUs. Services cover design, permits & inspections. Boost property value & rental income with an experienced ADU contractor.
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Woollard Construction is a family run general contractor specializing in ADUs and bathroom remodels. Formed over 25 years ago in Temecula, California, we deliver professional building projects with care and precision in Temecula and Murrieta.
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SKS Construction, founded in 1987 in Los Angeles, offers ADU construction, seismic retrofitting, balcony inspections (SB 326 & SB 721 compliance), and structural engineering. With 200+ projects and 80% repeat clients, they deliver expert design-build solutions.
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ADU Builder LA is a full-service ADU contractor in Los Angeles, managing every phase of accessory dwelling unit projects. They offer transparent pricing, expert guidance, and handle all permitting. Services include detached ADUs, attached ADUs, garage conversions, and JADUs.
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Coastal Builders is a Long Beach, CA ADU contractor specializing in detached, attached, garage conversion, basement, and attic ADUs. They offer design consultation, ADA-compliant builds, and custom units like granny flats and in-law suites.
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Golden ADU, serving Southern California since 2021, specializes in custom ADU construction including garage conversions and detached backyard cottages. They offer flexible financing with no upfront costs, completing most projects in 6–12 months.
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Okopod's 215 ft² backyard studio ADU features a dual pitch standing seam roof, Natural Thermowood cladding, aluminum doors, a full bathroom, and an anthracite grey pergola with adjustable louvres and slab flooring.
read moreTustin, California, is a city known for its unique blend of historic charm and modern suburban development. Home to the iconic Tustin Blimp Hangars — two of the largest wooden structures in the world — and the ongoing redevelopment of the former Marine Corps Air Station Tustin, this Orange County city presents a distinctive landscape for ADU contractors in Tustin. As housing demand continues to rise across Southern California, accessory dwelling units have become an increasingly popular solution for Tustin homeowners looking to maximize their property's potential.
Before breaking ground, experienced ADU contractors in Tustin, CA must navigate the city's specific zoning codes and building regulations. Tustin follows California state ADU law while also enforcing its own local standards. Key considerations include:
Skilled ADU builders in Tustin work on a variety of unit types to suit different property configurations and homeowner goals. The most common types include detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs). Given Tustin's mix of older single-family neighborhoods and newer planned communities — including areas within the Tustin Legacy development — contractors must be well-versed in adapting designs to fit both traditional and contemporary architectural styles.
Working with a licensed ADU contractor familiar with Tustin offers significant advantages. Local contractors understand the nuances of the city's permitting process through the Tustin Community Development Department, can efficiently handle plan checks, and maintain relationships with local inspectors. This local expertise can dramatically reduce construction timelines and avoid costly mistakes.
Whether you're looking to generate rental income, house extended family, or increase your property value, building an ADU in Tustin is a smart investment. Connect with a qualified ADU contractor in Tustin, California to discuss your vision, review your lot's potential, and begin the permitting process with confidence.