Greenberg Construction builds custom ADUs, including detached units & garage conversions. Services include 3D renderings, dedicated project management, eco-friendly options & expert design guidance to add value & living space to your p... read more
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.
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S.D White Construction Inc, a licensed Bay Area ADU contractor with 20+ years experience, builds detached, attached, garage conversion & above-garage ADUs in Richmond, CA. Full-service from design & permits to final inspection, completed i... read more
Licensed ADU contractor Full Steam Ahead Construction serves East Bay homeowners with custom accessory dwelling units, including garage conversions, backyard cottages & in-law suites. Serving Concord, Oakland, Berkeley & more.
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AKD Homes is a Bay Area ADU contractor with 20+ years of experience. They offer full-service ADU design and build, including detached ADUs, custom designs, and conversions from Berkeley to San Jose.
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Jaws Construction Services builds ADUs, garage conversions, and JADUs. They handle permits, HOA coordination, and offer site-built or prefab options. East Bay ADUs rent for $1,500–$3,500+/month, potentially boosting property value.
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Atra Construction is a Bay Area ADU contractor offering full-service design and build. They handle permits, planning, and construction management. Floor plans range from 240 sq ft studios to 1,200 sq ft three-bedroom units.
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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... read more
DNM Architecture is a California-based firm specializing in ADU design and permitting. Their ADUxDNM program covers site analysis, design, permitting, and construction management, offering detached ADUs, garage conversions, and more.
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Deharo Construction is a trusted ADU builder serving Livermore, Pleasanton, and Dublin. Specializing in accessory dwelling units, new construction, and home additions, they deliver custom granny flats, detached ADUs, and in-law suites across the T... read more
Santa Cruz Green Builders offers design+build services in Santa Cruz with 17 years of experience. Specializing in ADUs, remodels, new homes & green building, they handle everything from design to construction using sustainable practices.
read moreSan Lorenzo is a census-designated place (CDP) in Alameda County, California, meaning it is an unincorporated community without its own city government. This is a critical distinction for homeowners seeking ADU contractors in San Lorenzo, as all permitting, zoning, and building regulations fall under Alameda County's jurisdiction rather than a standalone city authority. Working with experienced ADU contractors who understand Alameda County's specific rules is essential for a smooth and compliant construction process.
Because San Lorenzo falls under Alameda County's unincorporated zoning codes, ADU contractors must navigate the county's Planning Department and Building Services Division. Key regulations that your ADU contractor must be familiar with include:
San Lorenzo's neighborhoods consist largely of post-World War II single-family homes, many built in the late 1940s and 1950s as part of planned suburban development. This means ADU contractors frequently encounter older infrastructure, including aging electrical panels, outdated plumbing, and foundations that may require upgrades before an ADU can be permitted. Hiring a knowledgeable local ADU contractor ensures these challenges are identified early, keeping your project on budget and on schedule.
Given the typical lot sizes and home layouts found throughout San Lorenzo, the most common ADU types constructed by local contractors include:
Whether you're looking to add rental income, house extended family, or increase your property value, working with a qualified ADU contractor in San Lorenzo, CA is the first step. Make sure your contractor has direct experience with Alameda County permitting processes to ensure your project meets all local requirements efficiently and effectively.