OCA Builders is a trusted Santa Cruz general contractor specializing in ADU construction, custom homes, kitchen & bathroom remodeling, room additions, and commercial build-outs, delivering quality craftsmanship with deep local zoning expertise... read more
Home by Tom is a Bay Area ADU contractor with 21+ years of experience serving Walnut Creek. They build detached ADUs, attached ADUs, and garage conversions, managing design, permits, and construction for rental income or multi-generational living.... read more
ON Design & Remodeling is a Bay Area ADU builder offering home additions, garage conversions, granny flats, and in-law suites. They help homeowners expand living space, boost property value, and generate rental income.
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ExpandADU is a California-based prefab ADU builder offering full-service accessory dwelling unit construction, including consultation, design, planning, and build. Serving the Bay Area and beyond, they specialize in detached ADUs, granny flats, an... read more
Geico Builders offers ADU services including detached ADUs, attached ADUs, Junior ADUs, garage conversions, and home additions. Ideal for rental income, family housing, or maximizing space on your existing property.
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Rosegold Builders builds custom ADUs across the Bay Area and Los Angeles, handling permits, zoning, and construction. Services include garage conversions, backyard cottages, and rental units designed to boost property value.
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AK Builders Inc is a White Salmon, WA contractor serving the Columbia River Gorge. They offer new home builds, remodels, ADU projects, and custom woodworking across Oregon and Washington.
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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 ho... read more
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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Element Home Remodeling is a Mountain View ADU contractor offering full design-build services in Silicon Valley. They specialize in garage conversions, backyard cottages, in-law suites & rental units, serving Palo Alto, Sunnyvale & San Jos... read more
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.read more
Bay Area design-build ADU specialists. One project, one point of contact — design, engineering, permitting, and construction from start to finish. CSLB #1130783.
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Golden View Renovation offers ADU design, room additions & full construction services in San Jose & the Bay Area. Services include permits, JADUs, remodeling & free consultations for homeowners seeking to expand living space.
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Tucan Builder is a family-owned general contractor in Redwood City, CA, serving San Mateo County. Specializing in ADU construction, room additions, kitchen remodeling, and home renovations, they bring 30+ years of combined experience.
read moreHalf Moon Bay, nestled along the stunning San Mateo County coastline, presents a unique set of challenges for ADU contractors. Much of the city falls within the California Coastal Zone, which means that accessory dwelling unit projects may require not only standard local permits but also a Coastal Development Permit (CDP) issued in compliance with the California Coastal Act. Experienced ADU contractors in Half Moon Bay understand how to navigate these additional regulatory layers, ensuring your project moves forward without costly delays.
Half Moon Bay follows California state ADU law while also enforcing its own Municipal Code and Local Coastal Program (LCP). Homeowners in residential zones such as R-1 and R-2 are generally permitted to build ADUs, but contractors must carefully review setback requirements, lot coverage limits, and height restrictions that can vary by parcel. The city typically allows ADUs up to 1,200 square feet for detached units, and Junior ADUs (JADUs) up to 500 square feet within existing primary structures. Key considerations include:
Working with an ADU contractor experienced in Half Moon Bay is essential due to the city's complex regulatory environment. A knowledgeable contractor will handle the permitting process with the City of Half Moon Bay Community Development Department, coordinate with the California Coastal Commission when necessary, and ensure your ADU meets all building codes including seismic safety standards relevant to this coastal region. Attempting to manage these requirements without professional guidance can result in permit denials, project delays, and significant financial setbacks.
Given the character of Half Moon Bay's residential neighborhoods — many featuring larger lots with existing single-family homes — the most popular ADU types include:
Half Moon Bay's desirable location along the San Mateo County coast means that a well-built ADU can command strong rental rates and significantly increase property value. By partnering with a licensed, local ADU contractor who understands the city's coastal regulations, zoning codes, and construction environment, homeowners can confidently move from concept to completed unit — and start enjoying the financial and lifestyle benefits of their new accessory dwelling unit.