DSA Architects designed an 850 sq. ft. second-floor ADU in Berkeley Hills for multi-generational living. Features 2 beds, 1 bath, open layout, Tilden Park views, roof deck, solar PV, heat pumps, and gray-water system.
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Valley Home Builders Inc. is a Silicon Valley design-build contractor serving Santa Clara & San Mateo Counties. Founded in 2005, they specialize in kitchen remodeling, ADU construction, and home renovations across San Jose, San Mateo & beyond.
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prefabADU is a Bay Area ADU builder with 16+ years of experience offering affordable kits and plans from under $45K. With 12 state-approved plans valid across California, they simplify permits, design, and installation for homeowners.
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Step-up Construction is a San Jose ADU contractor specializing in garage conversions, attached additions, and detached backyard ADUs. Costs range from $80K to $475K. They guide homeowners through permits, zoning, and San Jose's ADU regulations.
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ADBC Architecture completed an 800 SF detached ADU in East Bay, CA in 2025, designed for multigenerational living. Built with thermally modified wood and steel, the backyard cottage features high ceilings and large windows for a spacious feel.
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Bay Villa Builders brings over 50 years of combined experience in crafting expertly designed ADUs that enhance both your home's functionality and its value. An Accessory Dwelling Unit, or ADU, serves as an additional living space on your property.
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Barcci Builders specializes in ADU construction across the Bay Area, offering design, permitting, and build services. With 40+ completed units, they handle JADUs, garage conversions, attached, and detached ADUs, with costs ranging from $60K to $400K+.
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Roof and Realm is a California-based steel-framed modular home and ADU builder offering fire, earthquake, and wind-resistant structures. Their eco-friendly builds use 98% recyclable materials, generate minimal waste, and support solar-ready, Net Positive energy designs.
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SFBay ADU is a Bay Area ADU contractor offering full-service design, permitting, and construction. Specializing in 600–1,200 sq ft units, they offer studio, 2-bed, garden cottage, and in-law suite options, with projects completed in as little as 6 months.
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Home Revive Builders is a licensed ADU contractor in the Bay Area, CA, specializing in garage conversions, detached ADUs, in-law suites, and more. Full-service projects include design, permits, plumbing, electrical, and finishing.
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ENE Smarthome, Inc. is a Bay Area contractor offering home remodeling, ADU construction, smart home upgrades, and accessibility improvements. Services include garage conversions, granny flats, aging-in-place remodels, and SB9-compliant ADU projects.
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E&E General Construction Inc (License #1067263) specializes in ADU construction and garage conversions in Richmond, CA. Services include detached ADUs, attached units, and garage conversions across the Bay Area. Free estimates available.
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Bay Star Garage transforms garages into functional spaces in Santa Clara & Livermore, CA. Services include remodeling, flooring, EV charging, lighting, conversions & cabinets. Licensed, bonded & insured contractor specializing in ADUs and garage upgrades.
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LiveLarge Home is a California prefab ADU builder offering full-service solutions from permits to final inspection. Build times start at 4–6 weeks, with fixed pricing from $412/sq. ft. Models range from studios to 2-bed/2-bath units with premium finishes.
read moreNewhall is one of the oldest and most historically rich communities within the City of Santa Clarita, California. Known for its charming Old Town district and its roots in the early California oil industry, Newhall presents a unique backdrop for Accessory Dwelling Unit (ADU) construction. Homeowners in Newhall looking to add an ADU must work with experienced ADU contractors familiar with Santa Clarita's specific building codes and the character-sensitive nature of this historic neighborhood.
Since Newhall falls under the jurisdiction of the City of Santa Clarita, all ADU projects must comply with Santa Clarita's ADU ordinance, which aligns with California state law (AB 68, SB 9, and related legislation). Key regulatory considerations include:
Working with a licensed ADU contractor experienced in Newhall and the greater Santa Clarita Valley is essential for a smooth permitting and construction process. The City of Santa Clarita's Building and Safety Division oversees all permit applications, inspections, and approvals. A knowledgeable contractor will handle:
Newhall's mix of older single-family homes and newer developments makes it suitable for a variety of ADU types. Garage conversion ADUs are particularly popular given the existing structures on many properties. Detached backyard cottages and Junior ADUs (JADUs) converted from existing interior spaces are also common choices for homeowners looking to add rental income or multigenerational living space.
Whether you're looking to generate rental income, house family members, or increase your property value, hiring a qualified ADU contractor in Newhall, CA is the first step. Make sure your contractor is licensed by the California Contractors State License Board (CSLB) and has verifiable experience with local Santa Clarita permitting processes.