ADU Builders Near Me — Southern California Service Areas

A Top-Ranked ADU Contractor Serving Los Angeles, Orange County & the Inland Empire

Vision ADU ranks in the top 2% of all licensed contractors in California, as independently scored by BuildZoom — and we hold that same standard on every ADU we build in Los Angeles, Orange County & the Inland Empire. We are fully licensed (CSLB #1115842), 5.0-star rated on Google, with 30+ years of construction experience.

How to choose an ADU builder near you

Whether you're searching for an "ADU builder near me", a garage-conversion specialist, or a Junior ADU (JADU) builder, the right local contractor should show you three things: a current CSLB license, real completed projects near your city, and a written itemized estimate before you sign anything. Vision ADU serves every neighborhood across LA, OC, and the Inland Empire — we handle the full ADU process (design, permits, construction, inspection), we know the local building department in every city we work, and every project starts with a free feasibility check of your lot. Popular starting points: the Los Angeles ADU builder page, Long Beach, Santa Ana, and the Orange County hub.

Vision ADU LLC · 1440 S State College Blvd, 6H, Anaheim, CA 92806 · (866) 668-4264 · Open Mon–Fri 8am–6pm, Sat 9am–5pm · 5.0-star rated on Google

What Are ADU Impact Fees?

Development impact fees are one-time charges cities collect to offset the infrastructure cost of new housing — roads, parks, utilities, and schools. Before 2020, these fees often made ADU construction economically unviable for California homeowners.

Statewide Waiver: ADUs Under 750 Sq Ft (Gov. Code §66310)

California Government Code §66310 prohibits any city or county from imposing impact fees on ADUs under 750 square feet. This applies statewide — no local ordinance can override it. If your ADU is under 750 sq ft, development impact fees are waived by law.

Proportional Fees for ADUs 750 Sq Ft and Above

ADUs at or above 750 sq ft are subject to proportional impact fees, capped by state law at a fraction of the fee charged for a primary dwelling. The fee scales with the ADU’s square footage relative to the main home.

Fees That May Still Apply

Even for ADUs under 750 sq ft, school fees (levied by school districts — separate from impact fees and not waived by §66310) and actual utility connection or new meter costs may still apply. Vision ADU reviews every potential fee and gives you an estimated total of all expenses during your free feasibility analysis — before you commit to anything.

Potential Local ADU Fees by City

Potential impact fees and permit timelines vary by city. Click a city for local details: