Simi Valley ADU Contractor — Licensed ADU Builder Near You
Simi Valley combines large suburban lots, strong schools, and Ventura County's more relaxed pace — a great match for garage conversions and detached ADUs that add rental income or space for family.
A Top-Ranked ADU Contractor Serving Simi Valley, Ventura County
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 Simi Valley, Ventura County. We are fully licensed (CSLB #1115842), 5.0-star rated on Google, with 30+ years of construction experience.
Looking for an ADU contractor near you in Simi Valley?
Vision ADU is a fully licensed Simi Valley ADU contractor and ADU builder serving every neighborhood in Simi Valley, Ventura County. Whether you're searching for a "Simi Valley ADU builder near me", a garage-conversion contractor, or a new-construction ADU specialist, we handle the entire project end-to-end — design, permits, construction, and final inspection. CSLB License #1115842; our team has helped hundreds of homeowners across Southern California.
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
Building an ADU in Simi Valley
Simi Valley offers wide suburban lots, attached two- and three-car garages, and a family-oriented market that makes ADUs a natural fit — whether that's a garage conversion for a returning adult child or a detached unit for rental income. Permitting runs through the City of Simi Valley in Ventura County, which reviews ADUs ministerially under state law. Vision ADU has completed work in Simi Valley and manages design, permits, and construction end to end.
Why Hire a Simi Valley ADU Contractor?
Key advantages for Simi Valley homeowners
- Generous suburban lots with room for detached ADUs
- Attached two- and three-car garages are ideal conversion candidates
- Ministerial ADU approval under California state law
- Strong family rental demand from the East Ventura County corridor
- Close to the 118 freeway for San Fernando Valley commuters
- Permitted ADUs add lasting equity — values vary by property and market
Our ADU Services in Simi Valley
Garage Conversion ADU in Simi Valley
Transform your existing garage into a fully permitted ADU. Most affordable option with the fastest completion times.
New Construction ADU in Simi Valley
Build a brand-new detached ADU from the ground up. Maximize space and customize every detail.
Junior ADU (JADU) in Simi Valley
Convert part of your existing home into a separate living unit up to 500 sq ft.
Home Remodeling in Simi Valley
Full-service home renovation and remodeling to complement your ADU project.
Recent ADU Projects in Simi Valley
Real completed Vision ADU projects in Ventura County
Simi Valley ADU Permits
Simi Valley reviews ADU applications ministerially under California state law, so no public hearing is required and the city must act on a complete application within 60 days. Standard state rules apply: detached ADUs up to 1,200 square feet, no added parking within a half mile of transit, and no owner-occupancy requirement for ADUs permitted through 2025 and beyond under current law. Vision ADU prepares the drawings, submits to the city, and handles plan-check corrections. Fees vary by project, and we provide a written estimate up front (an estimate only, not a guarantee).
ADU Regulations in Simi Valley
Overview of ADU zoning rules in Simi Valley based on California state law and local ordinances — setbacks, size limits, height, parking, and more.
As of August 2026. Source: California HCD ADU Handbook (March 2026) & 2025–26 state legislation (SB 543, SB 1211, AB 976, AB 1154, AB 462, AB 1033, AB 2533). California state law sets the minimum floor — local jurisdictions in Simi Valley may add design, setback, or other requirements on top of these state standards. Always verify current rules with your city or county planning department before building. Get a free consultation →
Neighborhoods We Serve in Simi Valley
Vision ADU builds ADUs across all Simi Valley neighborhoods
Frequently Asked Questions About ADUs in Simi Valley
How much does an ADU cost in Simi Valley?
Garage conversions in Simi Valley are typically the most affordable path since they reuse the existing structure, while new detached ADUs cost more depending on size, finishes, and site conditions. Vision ADU provides a written, itemized quote after a free feasibility check.
Does Simi Valley allow garage conversion ADUs?
Yes. California law requires cities to approve conversions of existing garages into ADUs, and no replacement parking can be required. Simi Valley's common attached two-car garages convert well into one-bedroom units.
How long does ADU permitting take in Simi Valley?
Simi Valley must act on a complete ADU application within 60 days under state law; in practice reviews typically take 4-6 weeks. Vision ADU handles the paperwork and all city interactions.
Has Vision ADU worked in Simi Valley?
Yes — our portfolio includes a completed garage conversion in Simi Valley, and we serve the wider Ventura County and San Fernando Valley area.
Ready to Build Your ADU in Simi Valley?
Get a free, no-obligation consultation with our ADU experts. We handle everything from design to permits to construction.
Book Free Consultation (866) 668-4264