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Most popular 2-Car Garage Conversion Plan — exterior rendering of a CALI ADU Signature plan in Los Angeles
Signature Garage Conversion · True conversion

2-Car Garage Conversion Plan

A real one-bedroom home, hiding in your garage.

A sample of our most popular 2-car conversion layouts — every plan is customized to how you'll use the space.

1 bed · 1 bath · ~400–440 sqft

The walls, roof, and slab are already built. We design the home inside them around your life — and walk the permit through the city for you.

Plans + permitting $7,490 fixed
Est. cost to build from $150,000

15-minute Backyard Review · No site visit · No obligation

Why this plan

The case for the 2-Car Garage Conversion Plan.

Most Los Angeles garages are two-car — which is exactly why this is the volume seller of the line. The plan turns that standard footprint into a genuine one-bedroom home: a separate bedroom, a full bathroom, and an open living-and-kitchen space, all inside the walls you already have. No new foundation, no lost yard, and the fastest, most permit-friendly path to a backyard rental or in-law suite.

  • No new foundation Converts the standard two-car footprint as-is.
  • A real one-bedroom A bedroom, full bath, and open living + kitchen.
  • No replacement parking AB 68 / SB 1211 ended that requirement.
  • Keeps its setbacks Even under four feet from the property line.
  • ~60-day ministerial review The fastest, most permit-friendly ADU path.
Customized to you

Your plan, tailored to how you’ll use it.

Every plan here is a starting point. We reshape the layout — rooms, windows, doors, and the privacy between your ADU and the main house — around how you’ll actually live. All of it included in your fixed plan fee.

2-Car Garage Conversion Plan — The Rental Layout
Long-term rental

The Rental Layout

A private entrance to the side yard, with the bedroom and windows placed away from the main house for maximum separation and sound privacy.

2-Car Garage Conversion Plan — The Family Layout
Guest · playroom · entertaining

The Family Layout

An open plan with a wide slider facing the main-house patio and an optional pass-through — the ADU reads as an extension of the home.

2-Car Garage Conversion Plan — The Suite Layout
Multigenerational

The Suite Layout

A semi-private one-bedroom with its own entrance but a connecting path and shared outdoor space — independence without isolation.

Floor plan

2-Car Garage Conversion Plan — floor plan

2-Car Garage Conversion Plan floor plan
Rendered floor plan. The full study set adds dimensions, elevations, and finish specs — request it below.

Get the full study set

Take the 2-Car Garage Conversion Plan home to think it over.

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Renderings

Inside the 2-Car Garage Conversion Plan

What your plan fee includes

$7,490, fixed — expert in-house design and full permit processing.

  • Floor plans and elevations designed in-house by expert ADU designers
  • Structural engineering and Title 24 energy compliance coordination
  • Your interior and exterior finish selections, specified in the plans
  • Done-for-you permit processing and expediting with your city
  • Unlimited plan-check corrections until your permit is issued
  • A builder-ready set any licensed contractor can price and build
Why the build price is a “from”

Every garage is different.

The plan and the plan fee are fixed. The build starts at $150,000 — the final number depends on what your specific garage is hiding. An on-site assessment gives you a real number, not a guess.

Ceiling height
Code requires 7′0" finished, and you lose 4–6" to floor and ceiling assemblies. Below about 7′6" raw, the roof has to be raised.
Slab & footings
Older garages often have shallow, unreinforced footings that need underpinning, plus leveling and vapor-barrier work on thin slabs.
MEP
Most garages have no plumbing and limited panel capacity; new electrical and plumbing runs can approach new-build cost.
Insulation & Title 24
Garages carry little to no insulation or ventilation, so a full envelope upgrade is required to pass energy code.
Fire separation
Attached garages need one-hour rated assemblies between the ADU and the main house.

Want a real number instead of a guess?

Get a real number for my garage

15-minute Backyard Review · No site visit · No obligation

Questions

2-Car Garage Conversion Plan — frequently asked

How big is a 2-car garage conversion ADU?
A typical Los Angeles two-car garage is about 400–440 sqft. That is enough for a comfortable one-bedroom layout: a bedroom that fits a queen bed, a full bathroom, and an open living-and-kitchen area with room for a small dining table.
How much does a 2-car garage conversion cost?
The permit-ready plan set is a fixed $7,490. The build starts at $150,000 with an independent licensed general contractor and is confirmed for your specific garage after an assessment — ceiling height, slab, and existing wiring are what move the final number.
Can I build it myself or use my own contractor?
Yes. You own the permit-ready plans. Build it yourself, bring your own licensed contractor, or build with one of our vetted construction partners — whichever you prefer.
Do I need replacement parking if I convert my garage?
No. AB 68 / SB 1211 (effective January 2025) eliminated replacement-parking requirements for garage-to-ADU conversions statewide. You keep your driveway and yard.
What happens to my setbacks?
A legally established existing garage keeps its current location and setbacks, even if it sits under four feet from the property line. That is one of the reasons a conversion is the easiest ADU to permit.
Why is the build price a "from" number instead of a fixed price?
The plan and the plan fee are fixed. The build starts at our published number, but the final price depends on what your specific garage is hiding — its ceiling height, its slab, its wiring. An on-site assessment gives you a real number instead of a guess that balloons later.

Signature Garage Conversions are designed in-house by our expert ADU design team and carry the same curated finishes as our detached Signature Homes. Your plan fee is fixed. Because every garage is different — ceiling height, slab condition, existing wiring — the cost to build is an estimate that starts at the figure shown and is confirmed for your specific garage; it is not a single guaranteed price. Construction is performed by an independent licensed general contractor.

Ready when you are

See what your garage can become.

Book a 15-minute Backyard Review — we'll look at your garage and your lot, and tell you which plan fits.

Designed in-house · Transparent pricing · Your choice of builder

The CALI ADU permit guarantee

Approved, or every dollar of your plan fee back.

California ADU review is ministerial: a plan that meets state and local standards must be approved. Our plans are engineered to those standards, which is why we can put money behind the outcome.

Money-back permit guarantee
Once our feasibility study says we can permit your ADU, if your city refuses to issue the permit, you get every dollar of your plan fee back.
Unlimited corrections, one fixed fee
If your city comes back with plan-check corrections, we handle every round of revisions and resubmittals at no added fee until the plan is approved.
14-day submission on Signature plans
Choose a Signature Home with no design changes and your plan set is completed and submitted to the city within 14 days. City review itself typically takes 6–8 weeks.

126 Los Angeles ADU projects taken through permitting. Zero denied.