An ADU is a secondary residential unit on the same property as a primary home. JL Biber Construction Inc., a licensed ADU builder in Riverside, California, offers full-service garage conversions, granny flats, and detached ADU construction.
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Next Level ADU Builders, serving Los Angeles, Riverside & Pico Rivera since 1997, specializes in ADU construction—detached units, granny flats & casitas—plus HVAC, remodeling & roofing, with financing options available.
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Perfect ADU & Remodeling Inc specializes in ADU construction, including detached ADUs and garage conversions. Services cover design, permitting, and build. ADUs boost property value, enable rental income, and support multi-generational living.... read more
Lion Builder Construction is a Southern California contractor serving Orange, LA, and Riverside Counties, plus Maricopa County, AZ. They specialize in new homes, ADUs, and kitchen remodels, offering a one-stop-shop approach.
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A.G.A. Construction Inc is a Los Angeles ADU contractor specializing in accessory dwelling units & JADUs. Services include custom design, permits, plumbing, electrical & energy-efficient construction to maximize property value.
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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
Royalty Builders is a full-service ADU builder in Los Angeles offering in-house design, engineering & construction. They provide competitive pricing, permit management & turnkey delivery for detached ADUs from 500–750 SF.
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ADU Hotline offers affordable ADU design and permitting in Southern California. From granny flats to garage conversions, they handle the full process in 3–4 weeks, helping homeowners add rental income or family housing efficiently.
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Papaya Construction Group is a licensed design-build ADU contractor in Orange County, CA. Founded in 2018, they offer detached ADUs, garage conversions, attached units & above-garage builds across Irvine, Anaheim & more.
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California Backyard Homes Inc specializes in prefab ADUs, tiny houses, and modular homes across California. Starting from $44,500, they offer turnkey installation including permits and utility connections, with financing available up to 23 years.<... read more
Construction Masters™ is a trusted ADU contractor offering full-service design, engineering, and construction of accessory dwelling units. They build granny flats, in-law suites, and detached ADUs, boosting property value with a free consultatio... read more
Raudes Construction builds ADUs including garage conversions, granny flats & detached units. They handle permits, zoning compliance & full construction. Costs range from $50K to $300K+, with timelines of 3–6 months.
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My Space Remodeling Inc. is a licensed ADU contractor in Westlake Village, CA, specializing in ADU design, construction, and garage conversions. They offer free estimates, financing, and hold an A+ BBB rating.
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Prime Team Builders is a general contracting company serving the Inland Empire, including Pomona, Ontario, Riverside & more. They specialize in kitchen remodeling, bathroom remodeling, and residential renovations throughout Southern California... read more
South Pasadena, California is one of the most historically rich cities in the San Gabriel Valley, known for its Craftsman bungalows, Victorian homes, and Spanish Colonial Revival architecture. This unique character means that ADU contractors working in South Pasadena must be especially mindful of design compatibility and local historic preservation guidelines. Building an Accessory Dwelling Unit here requires a contractor who understands not just state ADU law, but also the specific aesthetic and regulatory expectations of this tight-knit 3.4-square-mile city.
Like all California cities, South Pasadena must comply with California state ADU law (AB 68, AB 881, SB 13), which has significantly streamlined the permitting process statewide. However, the city still enforces its own local standards within the framework allowed by state law. Key regulations that experienced ADU contractors in South Pasadena must navigate include:
Skilled ADU contractors in South Pasadena offer a range of construction options tailored to the city's diverse housing stock. Given the prevalence of older homes with detached garages, garage conversions are among the most popular ADU projects in the area. Other common ADU types include:
Hiring a contractor with direct experience in South Pasadena is a significant advantage. Local ADU contractors are familiar with the city's Building and Safety Division, understand the permit submission process, and have established relationships with local inspectors. They also understand how to design ADUs that complement the city's historic neighborhoods, reducing the risk of design review delays.
Whether you're looking to create a rental income unit, multigenerational housing, or a home office, working with a qualified ADU contractor in South Pasadena ensures your project meets all local and state requirements while adding lasting value to your property.