Attached ADU in California

Experience a personalized approach to ADU construction with GO ADU. From initial design concepts to permits, construction, and financing, we offer a seamless, all-in-one solution customized to your needs. With owner involvement at every stage, your project is in caring and capable hands.

Northbay Home Solutions offers full-service ADU construction in San Rafael, San Francisco & North Bay. Services include detached ADUs, garage conversions & JADUs, covering design, permits & build.

Built Environment Inc. is a licensed Northern California ADU contractor with 20+ years of experience. They build detached, attached, internal, JADU, and garage conversion ADUs, guiding homeowners from consultation to completion per California building codes.

YAHUA Construction Inc. is a California-based licensed general contractor with 20+ years of experience. Specializing in ADUs, remodeling, MEP, roofing, and more, they serve the Bay Area with quality, sustainable construction.

Sacramento ADU Builder — Granite Bay & Roseville

Veteran-Owned Sacramento ADU Builders · Detached ADUs, Garage Conversions & Additions

Sacramento ADU Builders — 20+ Years, CSLB Licensed

A1 is a CSLB-licensed Sacramento ADU builder (#1094366) specializing in detached ADUs, garage conversions, and home additions across Sacramento County, Granite Bay, Roseville, Folsom, and Elk Grove. As local ADU builders in Sacramento, we handle zoning, permits, financing, and design end-to-end — turning underutilized garages, basements, and lots into permitted, income-generating living units.

OC Builders Group specializes in ADU construction in California, offering detached ADUs, garage conversions, granny flats & in-law suites. They help homeowners navigate permits, zoning & state regulations to add rental income or housing value.

Design Path Studio is a Southern California residential architecture firm specializing in modern, sustainable design. They focus on indoor-outdoor integration, clean lines, and natural light, with expertise in ADUs, garage conversions, and granny flats.

Zacarias Remodeling Construction Inc. builds custom ADUs in the Bay Area, including garage conversions, detached ADUs, and in-law suites. They handle permits, design, and construction, helping property owners add rental income or multigenerational living space.

JM Construction, based in Arroyo Grande, CA, offers custom home builds, remodels, additions, and ADU construction on California's Central Coast. Licensed A & B contractor handling full residential projects with free consultations available.

Imagine the possibilities that a beautifully crafted ADU (accessory dwelling unit) brings to your Berkeley or Bay Area property. Whether it’s creating a cozy retreat for guests, a comfortable living space for family members, or an additional source of income through rental, design your ADU to enrich your life.

Gather ADU is a Los Angeles-based ADU specialist with 10+ years of experience and 127+ completed projects. Services include feasibility analysis, permits, financing, and construction for detached ADUs, garage conversions, attached ADUs, and JADUs across LA County.

Fontana General Contractors builds custom ADUs, including detached units, garage conversions, and in-law suites. They handle permits, zoning, and full construction management, helping property owners add value and flexible living space.

Backyard Unlimited, founded 2009 in Rocklin, CA, specializes in Amish-crafted sheds, gazebos, pergolas, and ADUs for Greater Sacramento homeowners. They handle full ADU design, permitting, and installation in-house, with no subcontractors.

Oasis Builders is a trusted ADU contractor serving Greater Los Angeles, specializing in detached ADUs, attached ADUs, and garage conversions. Costs range from $100K–$300K, with timelines of 6–12 months. Full-service: permits, blueprints & turnkey construction.