Converting a garage into an ADU (Accessory Dwelling Unit) is the fastest and most cost-effective way to add livable square footage and rental income to your Los Angeles property. With California’s ADU-friendly laws and LA’s sky-high rental demand, a garage conversion ADU can pay for itself in just a few years. APLA Construction is a licensed general contractor (CA Lic #1136359) that has completed garage conversion ADUs across Sherman Oaks, Encino, Culver City, Pasadena, Torrance, and throughout Greater Los Angeles.
A garage conversion ADU transforms an existing attached or detached garage into a fully permitted, self-contained living unit. It includes its own kitchen or kitchenette, bathroom, sleeping area, and private entrance. Under California law, a converted garage counts as an ADU and is subject to the same streamlined permitting protections that apply to all ADUs statewide.
Unlike a new detached ADU built from the ground up, a garage conversion uses your existing structure — foundation, walls, and roof are already in place — which significantly reduces cost and construction time.
A garage conversion ADU in Los Angeles typically costs $80,000 to $160,000 for a standard single-car or two-car garage conversion. Here is how that breaks down:
APLA provides detailed, itemized written estimates so you know exactly what you are paying for before any work begins.
All garage conversion ADUs in Los Angeles require permits. The process involves:
APLA visits your property to assess the existing garage structure, lot setbacks, utility connections, and zoning. We identify any site-specific issues before you spend a dollar on drawings.
We coordinate with a licensed architect or designer to prepare permit-ready drawings. Plans must show floor plan, elevations, electrical, plumbing, and mechanical layouts.
Plans are submitted to LADBS (for City of LA properties) or to the relevant city building department (Glendale, Burbank, Pasadena, Culver City, etc.). Under SB 9 and AB 2221, ADU permits must be approved within 60 days of a complete application.
Once permits are in hand, construction typically takes 8–14 weeks for a standard garage conversion. APLA handles all trades in-house — framing, plumbing, electrical, insulation, drywall, tile, cabinets, and finishes.
After final inspections pass, the city issues a Certificate of Occupancy. Your ADU is now legally habitable and rentable.
Yes. California law (AB 2221, effective 2023) allows homeowners to demolish an existing non-conforming garage and replace it with a new ADU of the same footprint, even if the structure does not meet current setback requirements. This is a major advantage for older Los Angeles properties where the garage is close to the property line.
Rental rates for ADUs in Los Angeles vary by neighborhood and unit size:
At $1,800/month, a $130,000 garage conversion ADU pays for itself in approximately 6 years — before any appreciation in property value is considered. In high-demand neighborhoods like Santa Monica, Culver City, Studio City, or Manhattan Beach, rents and property value gains are even stronger.
Not sure which is right for your LA property? See our ADU vs Room Addition comparison guide.
No. Under California state law, you are not required to replace parking spaces removed to build an ADU if the property is within half a mile of public transit, which covers most of Los Angeles. APLA confirms your specific property’s requirements during the free consultation.
Yes. Detached garage conversions are actually simpler in some ways — there is no shared wall with the main house to navigate, and the unit can feel more private for tenants. APLA builds both attached and detached garage conversion ADUs throughout LA.
From initial consultation to certificate of occupancy, a typical garage conversion ADU in LA takes 4–8 months. This includes 4–8 weeks for permit approval and 8–14 weeks of construction.
Under Proposition 13, only the newly constructed ADU is reassessed — not your existing home. Your base home’s assessed value stays the same. The ADU adds a relatively small amount to your annual property tax bill.
Yes. California law allows one ADU and one JADU (Junior ADU, up to 500 sq ft within the existing home) on a single-family lot simultaneously. APLA can help you plan both if you want to maximize rental income on your property.
The minimum ADU size in California is 150 sq ft for a studio. Most single-car garages are 200–250 sq ft — enough for a comfortable studio ADU with a kitchenette, bathroom, and sleeping area.
APLA Construction builds fully permitted garage conversion ADUs throughout Greater Los Angeles. We handle everything from design coordination and permits through final inspection and certificate of occupancy.
Call: (818) 818-4419
Email: info@aplaconstruction.com
CA General Contractor License #1136359
Contact us for a free site evaluation and estimate. Learn more about all our ADU construction services.