Attached ADU in California

King Home Remodeling builds detached, attached, garage conversion, basement, and junior ADUs in Montebello. Services include design, permitting, construction, and inspections. Local zoning, size limits, and parking rules apply.

Homes by Hedges is an experienced ADU contractor in North San Diego County, building granny flats, casitas & garage conversions. Serving Valley Center, Escondido & more for 25+ years, managing permits & local zoning regulations.

Zume Builders, based in San Mateo, CA, specializes in custom homes, ADUs, and prefab construction across the Peninsula, serving Atherton, Palo Alto, Hillsborough & more.

iHome Design & Remodel specializes in custom ADU and casita construction, offering full-service builds from design to completion. Services include garage conversions, detached ADUs, permit handling, and free 3D consultations for homeowners.read more

John Christopher Construction is a Southern California general contractor specializing in ADU design and building. Serving Huntington Beach, Newport Beach, Costa Mesa & more, they offer custom and pre-engineered ADU plans for rental units, in-... read more

JP Homes is a licensed ADU contractor in Southern California, serving Los Angeles, Orange County, Riverside & San Bernardino. They offer full-service ADU construction including detached units, garage conversions & more.

Valley Boutique Builders is a licensed Bay Area ADU contractor offering full-service accessory dwelling unit construction, custom home additions, kitchen and bathroom remodeling, and new construction with free initial consultations.

Inspired ADUs is an architect-led ADU design firm serving the Bay Area and Southern California. With 20+ years of experience and 250+ ADUs permitted, they offer custom, panelized, and modular ADU solutions, plus interior design and SB9 lot split s... read more

Accessory Dwelling Units (ADUs) offer California property owners passive income, elderly care solutions, and property value growth. Since 2020 legislation, ADU permits are easier to obtain. Construction costs range $350–$450/sq ft, with rental i... read more

In N Out Builders & Home Remodeling offers full-service ADU design and construction in San Diego County, handling detached ADUs, garage conversions, granny flats, and JADUs, managing permits, planning, and builds under one roof.

Parsa Construction offers residential & commercial remodeling, ADU construction, and retrofit services. Specializing in kitchen, bathroom, room additions, and accessory dwelling units like granny flats and detached ADUs, they manage permits, d... read more

Enjoy Build, a licensed San Diego County general contractor (CSLB #1141989), offers design-build ADU construction including detached, attached, garage conversion, two-story, and JADU options. Services span site assessment, design, permitting, and ... read more

Creative Innovation Developers is a residential construction and remodeling company offering design through build services, including home additions, kitchen remodels, bathroom remodels, flooring, and painting, using 3D renderings for clear projec... read more

Integrity Home Improvements is a San Diego remodeling company founded in 2003 by Ryan Parkinson. Specializing in kitchen & bathroom remodels, home additions, and outdoor living, they serve communities across the greater San Diego area.