Reef Builders Inc is a Los Angeles ADU contractor founded in 2012, specializing in detached ADUs, garage conversions, JADUs & attached units. They manage permits, design, and full construction for homeowners seeking rental income or extra living space.
read more
Milanco Building Group (MBG) is a certified general contracting company that offers extremely competitive prices while working under all the proper licenses and insurances.
We are a full turn-key company that performs projects in the commercial, residential, industrial markets and more. We have a management team that has 30+ years of experience to ensure a smooth project, such as full communication with the client, timely scheduling, great customer service and attention to details.
read more
Alto Builders specializes in ADU construction in Los Angeles & Ventura County. Services include detached ADUs, garage conversions & JADUs. Costs range $300–$600/sq ft, with timelines of 5–12 months.
read more
Angelus Construction is a Los Angeles ADU contractor with 30+ years of experience. They offer full-service ADU design, permitting, and construction, plus residential remodeling across Los Angeles and Ventura Counties.
read more
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.
read more
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.
read more
Ofir Construction Inc. is a Los Angeles ADU contractor with nearly 20 years of experience. They specialize in ADU builds, garage conversions, and in-law suites, managing permits, planning, and construction while following California building codes.
read more
California Backyard Homes Inc specializes in prefab ADUs, tiny houses, and modular homes across California. Starting from $44,500, they offer turnkey installation including permits and utility connections, with financing available up to 23 years.
read more
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.
read more
ADUs (granny flats/backyard cottages) boost property value & rental income. Bunch Design, LA, offers custom & pre-designed ADUs: Garage Studio ($300K+), Cottage ($400K+), Stop Making Sense ($425K+), and Step ADU ($425K+).
read more
Buildoly is an ADU contractor offering full-service construction for detached ADUs, garage conversions, granny flats, JADUs, and backyard cottages. They manage design, permitting, and building, helping homeowners add rental income or family housing.
read more
ADU Ventura County builds accessory dwelling units including detached ADUs, garage conversions, granny flats, and Casitas. With 10+ years of experience, they offer free consultations, budget estimates, and full construction management for Ventura County homeowners.
read more
The ADU Guru is a full-service ADU contractor in Los Angeles & Orange County, specializing in garage conversions, detached ADUs & granny flats. With 100+ units completed, they offer $0 down, free 3D design & tenant placement.
read more
EAM Development & Construction is a California-based licensed contractor specializing in ADU and JADU garage conversions. Services include design, permitting, structural work, energy-efficient systems, and full construction compliant with California building codes.
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.