Realty Builders Inc. is a licensed ADU contractor specializing in custom accessory dwelling units, including in-law suites, granny flats, garage conversions & rental units, offering streamlined permitting & guaranteed workmanship.
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NorCal ADU Builders is a California-based full-service ADU contractor handling planning, permits, Title 24 compliance, and construction—including foundation, framing, roofing, plumbing, and interior finishes—for detached ADUs, garage conversions, and backyard cottages.
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GR Innovative Builders Inc. is a Bay Area ADU contractor specializing in accessory dwelling units, granny flats, and in-law suites. Completed projects in Richmond, Oakland, Lafayette & Pinole. Featured in Sunset Magazine.
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Mountain Top Construction is a Bay Area ADU builder serving San Rafael, San Francisco, and Las Vegas. They specialize in detached ADUs, backyard cottages, granny flats, and in-law suites, managing design, permitting, and construction.
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SOD Home Group builds attached & detached ADUs, including granny flats, in-law suites, garage conversions & backyard cottages. Licensed ADU contractor (Lic. 942085) helping homeowners expand living space efficiently.
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Intelligent Choice Builders is a licensed Bay Area ADU contractor serving Palo Alto, Cupertino, San Jose & Sunnyvale. They build detached ADUs, garage conversions, granny flats & more, managing permits, design & construction end-to-end.
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Custom Home is a Bay Area ADU contractor (CSLB #986048) with 160+ projects since 2005. They build detached, attached, junior ADUs & garage conversions across South Bay & Peninsula, with costs from $120K–$500K+.
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Edri Construction, Inc. is a Berkeley-based general contractor specializing in ADU construction across the Bay Area. Services include garage conversions, detached ADUs, attached additions, granny flats, and custom interiors, with full project management from permits to finishing.
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DevArt8 Builders specializes in ADU construction in Gilroy, offering floor plans from 350–650 sq. ft. They handle permits, ensure zoning compliance, and build detached ADUs, attached units, and garage conversions tailored to each property.
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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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ResCom ADU is a full-service ADU builder in Walnut Creek, CA, offering design, permits, engineering, construction & hookups. With 100+ years of combined experience, they deliver custom, cost-effective accessory dwelling units using SIPs & Net-Zero technology.
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ASL Remodeling is a California licensed ADU contractor (CSLB #1060310) with 20+ years experience and 300+ completed projects. Services include detached ADUs, garage conversions, granny flats, JADUs, and in-law suites with full design-build support.
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Masterful Construction is a San Mateo ADU contractor serving the Bay Area. They build detached ADUs, garage conversions, and in-law suites, handling design, permits, and construction. Discounts available for military and first responders.
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Apex ADU Builders is a Los Angeles-based contractor specializing in accessory dwelling unit construction. Services include new builds, garage conversions, permitting, and design. Costs range from $80K–$400K, with potential ROI 35% higher than homes without ADUs.
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AKD Homes is a SF Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design, permits, and construction, including detached ADUs, granny flats, and custom builds ranging from 400–750 sq. ft.
read moreRedwood City, located in San Mateo County along the San Francisco Peninsula, is one of the most desirable cities in the Bay Area. With its motto "Climate Best by Government Test" and its booming tech-driven economy, housing demand in Redwood City is exceptionally high. This makes Accessory Dwelling Units (ADUs) an increasingly popular solution for homeowners looking to maximize their property value, generate rental income, or house extended family members. Working with experienced ADU contractors in Redwood City is essential to navigating the city's specific building codes, zoning laws, and permit requirements.
Redwood City follows California's state ADU laws while also enforcing its own local guidelines. Homeowners and contractors must be well-versed in these rules before breaking ground. Key regulations include:
The permitting process in Redwood City is managed through the Community Development Department. Skilled ADU contractors in Redwood City will handle the submission of architectural plans, structural drawings, and energy compliance documentation (Title 24). The city has made efforts to streamline ADU approvals in alignment with California's push to address the housing crisis, but working with a knowledgeable local contractor significantly reduces delays and costly mistakes.
Hiring a contractor with direct experience in Redwood City offers several advantages:
With median home values in Redwood City consistently among the highest in the nation, adding an ADU can significantly boost your property's worth and rental potential. Whether you're considering a garage conversion, junior ADU (JADU), or a brand-new detached unit, partnering with a trusted and licensed ADU contractor in Redwood City ensures your project is completed on time, within budget, and fully compliant with all local and state regulations.