California Construction Center Inc. specializes in garage conversions and ADU services in Concord and San Francisco County. They transform garages into guest suites, rental units, and home offices, ensuring code compliance and quality craftsmanship.
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Newform Builders specializes in ADU construction for multi-family and mixed-use properties. They handle permits, inspections, and code-compliant builds, including detached, attached, and space-conversion ADUs, ensuring safe, regulation-aligned results from planning to completion.
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K&S Design Build specializes in ADU construction and garage conversions, offering full design-build services from concept to completion. They handle permits, city regulations, and create granny flats, in-law suites, backyard cottages, and rental units.
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Los Angeles ADU contractor The ADU Builder offers 10+ years of experience in ADU construction, garage conversions, JADUs, custom homes & remodels. They guide clients through design, permits, financing & building with quality craftsmanship.
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Quality First Builders offers full-service ADU construction across LA County since 2014. They handle design, permits, and building in-house for detached ADUs, garage conversions, JADUs, and in-law suites.
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ADU Builders is a licensed Los Angeles ADU contractor with 15 years of experience. They build detached ADUs, garage conversions, attached ADUs, and JADUs, handling permits, design, and inspections for stress-free ADU construction.
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Revival Homes is a California ADU project manager handling planning, financing, design, permitting, and construction. They build detached ADUs, garage conversions, JADUs, and more, with costs ranging from $100K to $300K.
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Zieba Builders, a Southern California design-build firm, was named one of the top 7 ADU contractors in Long Beach by Home Builder Digest. They specialize in custom homes, garage conversions, granny flats & detached ADUs.
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Pasadena Master ADU Builder is a top ADU contractor in San Gabriel Valley, offering detached ADUs, garage conversions, and JADUs. With 20+ years experience, 150+ projects, and 98% satisfaction, they deliver compliant, high-quality builds boosting property value by 20–30%.
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Create Construction is a licensed, family-owned ADU contractor serving Los Angeles, Orange, and Ventura Counties. They specialize in garage conversions, granny flats, and attached ADUs, managing design, permits, and construction from start to finish.
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Legacy Builders LA is a trusted ADU contractor in Los Angeles with 20+ years of experience. They offer ground-up ADUs, JADUs, garage conversions & additions, delivering custom, high-quality accessory dwelling units tailored to each homeowner.
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J's Vision Construction offers residential & commercial remodeling, including kitchen & bathroom remodels, ADU garage conversions, swimming pools, room additions, roofing, plumbing, flooring, and more — all managed under one general contractor.
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Joel & Co. Construction, serving Los Angeles since 1983, offers expert residential & commercial construction, including custom homes, kitchen & bathroom remodels, ADUs, room additions, and general contracting across Beverly Hills, Santa Monica & beyond.
read moreSimi Valley, nestled in Ventura County at the eastern end of the Simi Valley corridor, is known for its master-planned neighborhoods, suburban charm, and strong sense of community. As one of the safer and more family-oriented cities in Southern California, Simi Valley has seen a growing demand for Accessory Dwelling Units (ADUs). Homeowners are increasingly turning to experienced ADU contractors in Simi Valley to maximize their property value, create rental income, or house extended family members.
ADU contractors working in Simi Valley must comply with both California state ADU laws and the City of Simi Valley's local development standards. The city follows state law under AB 68, SB 13, and AB 3182, which streamlined ADU approvals across California. However, Simi Valley has its own specific zoning ordinances that contractors must carefully follow:
Given the city's predominantly single-family residential neighborhoods, ADU contractors in Simi Valley most frequently work on the following types of projects:
Hiring a licensed and experienced ADU contractor familiar with Simi Valley is essential for a smooth permitting and construction process. Local contractors understand the nuances of working with the Simi Valley Community Development Department, which handles building permits and plan checks. They are also familiar with local HOA restrictions that may apply in certain neighborhoods, as well as Ventura County's fire safety requirements, which are particularly relevant given the region's wildfire risk zones.
Whether you're looking to add rental income or create a multigenerational living space, working with a qualified ADU contractor in Simi Valley, CA ensures your project meets all local codes, stays on budget, and is completed efficiently.