California's ADU laws make it easier than ever to add a second unit to your lot, whether for rental income, aging parents or adult kids. We handle feasibility, design, permitting through LADBS or your city, utilities and construction so your ADU is a finished, rentable home rather than a two-year project.
Detached, attached or converted
Detached new-build ADUs offer the most flexibility in layout and privacy. Attached ADUs share a wall and can be more economical. Garage conversions reuse the existing slab and roof for the fastest, lowest-cost path to a legal unit. We help you compare all three against your lot, budget and goals.
What is included
Site and zoning feasibility, architectural plans, Title 24 energy compliance, structural engineering, permits, foundation and framing, full kitchen and bathroom, laundry, electrical sub-panel, plumbing and sewer tie-ins, HVAC (typically mini-split), insulation, drywall, flooring, paint and exterior finishes to match the main house.
Rental income and property value
Well-built ADUs in the San Fernando Valley and greater Los Angeles frequently rent for $2,000 to $3,500 per month and add meaningful appraised value. We design floor plans that live well for a tenant: real closets, in-unit laundry and a private entry.






What is included
- Zoning and feasibility review
- Architectural and structural plans
- Title 24 and permits
- Foundation, framing and roofing
- Kitchen, bathroom and laundry
- Electrical sub-panel and plumbing tie-ins
- Mini-split HVAC
- Flooring, paint and exterior finishes
ADUs & Garage Conversions questions, answered
How much does it cost to build an ADU in Los Angeles?
Garage conversions commonly run $80,000 to $200,000. New detached ADUs typically range from $250,000 to $450,000 depending on size, utilities and finishes. We provide a free feasibility review and estimate.
How big can my ADU be?
State law allows at least 800 square feet for a detached ADU on most lots, and up to 1,200 square feet in many cases, subject to setbacks and local rules. We confirm the maximum for your parcel during feasibility.
How long does an ADU take to build?
Garage conversions often finish in three to four months after permits. New detached ADUs usually take six to nine months of construction, plus two to four months of design and permitting.
ADUs & Garage Conversions near you
We regularly complete ADUs & garage conversions projects in Encino, Studio City, Van Nuys, Burbank, Pasadena, Altadena, Downey, Los Angeles and throughout Los Angeles County.