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LIVE · Studio ·Vol. I ·California Residential Design-Build ·ADUs · Custom Homes · Multifamily ·License & insurance details on request ·CSLB #1156772 ·Starting $250K ·10–16% ROI ·San Francisco · HQ ·Bay Area ·Los Angeles ·LIVE · Studio ·Vol. I ·California Residential Design-Build ·ADUs · Custom Homes · Multifamily ·License & insurance details on request ·CSLB #1156772 ·Starting $250K ·10–16% ROI ·San Francisco · HQ ·Bay Area ·Los Angeles ·
GoldenStateADU
Desk 02 · Los Angeles · Garage to ADU

Los Angeles Garage Conversion Contractor. the fastest LA path to rental income.

Garage conversions are the most common ADU we build in LA — and the fastest path from idea to tenant. A standard one-car or two-car garage in Silver Lake, Mar Vista, Highland Park, Culver City, or the South Bay typically becomes a 1BR or studio ADU within 9–12 months of brief.

Licensed California contractor · CSLB #1156772 · Los Angeles desk · LADBS

Begin a Los Angeles garage conversion brief →← Back to Los Angeles desk

About Garage Conversion in Los Angeles

LADBS treats garage conversions favorably: no new foundation, existing setbacks usually grandfathered, and a defined plan-check pathway. The work is in the upgrades — slab, insulation, fire separation from the main house, MEP, and the panel.

We deliver garage conversions as a fixed-scope contract so the LA rental math is real numbers, not estimates that move during construction.

Los Angeles permit notes · Garage Conversion

What we resolve before drawings begin.

  • 01

    Existing slab and foundation

    We core the slab and confirm the existing foundation can take the conversion. Many older LA garages need slab work or a perimeter foundation upgrade.

  • 02

    Fire separation from the main house

    Attached garages require 1-hour rated assemblies between the new ADU and the primary residence. We design for this during feasibility, not at framing.

  • 03

    Panel, sewer lateral, and water service

    Older LA neighborhoods often need a 200A panel upgrade, sewer cleanout, or water service tap. We scope these into the fixed contract.

ADU intel · the build stack we ship · Los Angeles spec

A 2025 LA detached ADU is 12–16 weeks of construction over 6–9 months of permit and design. The fastest path is the pre-approved-plan path — when the design fits.

The manufacturers we actually specify.

  • ZIP System (Huber)

    premium

    USA

    Structural sheathing with integrated weather barrier

    Eliminates a separate WRB step + tape system catches install errors visually. Our preferred default on ADU walls and roof decks.

  • Mitsubishi / Daikin / LG

    premium

    Japan · Japan · Korea

    Mini-split heat pumps for ADU HVAC

    Right-sized inverter heat pumps hit Title 24 and CalGreen with zero ductwork — the cleanest, cheapest HVAC for an ADU < 1,000 sf.

  • Rinnai / Navien

    workhorse

    Japan · Korea

    Tankless water heaters

    Wall-mount tankless saves 9 sq ft of floor and qualifies for SoCalGas rebates when CSA-approved gas units are still permitted; we switch to heat-pump electric where local code requires.

  • Square D / Eaton

    workhorse

    USA

    Sub-panel + load center for ADU service

    Standard 100A or 125A sub-panel from main; tap conductor sizing per CEC 705.12(B).

Material tiers · what you're actually choosing between.

MaterialLifespanInstalled in CABest forTrade-offs
2x6 stick-frame on continuous footing75+ years$340–$520 / sq ft turnkeyMost LA infill ADUs.12–16 weeks construction once permits issue.
Panelized / off-site framing kit75+ years$320–$480 / sq ftTight side-yard sites or fire-rebuilds.Crane access required; not feasible on every lot.
Modular box (Abodu / Cover / Boxabl)50+ years$300–$500 / sq ft delivered + siteworkOwners who want speed and accept the design constraint.Crane + crane-truck access required; foundation still has to be poured first.

Specification gotchas we resolve before contract.

  1. 01

    Pre-approved plans (LA + city catalogs).

    LA City, Santa Monica, Pasadena, Long Beach all maintain pre-approved plan catalogs. Plan check drops to 30 days or less when the plan is in the catalog.

  2. 02

    Utility separation (SB 9 / AB 2221 nuance).

    Separate utility meters are no longer required to permit, but they're often required for refinance or sale. We pull the right meter strategy for the owner's exit plan.

  3. 03

    Fire setbacks + sprinklers.

    ADUs under 1,200 sf often don't trigger sprinklers; over 1,200 or with specific roof tie-ins, NFPA 13D applies.

Sources · CA HCD ADU handbook (2025) · LADBS ADU information bulletin

Other Los Angeles services.

All Los Angeles services →

Los Angeles city directory · 314 cities served

Garage Conversion, written for your city.

Each link opens a dedicated page calibrated to the city's permit authority, lot conditions, and price band — not a generic regional landing.

Los Angeles · Garage Conversion FAQ

Questions Los Angeles homeowners ask first.

Start an LA garage conversion brief. We'll walk LADBS feasibility, slab condition, fire separation, panel capacity, and rental income for your specific address.

  1. How long does an LA garage conversion take?
    9–12 months typical: 2 months design, 3–4 months LADBS plan-check, and 4–5 months construction. Faster than a detached ADU because no new foundation work.
  2. What does a Los Angeles garage conversion cost?
    Most LA garage conversions land between $180K and $290K all-in, including LADBS permits, MEP, panel upgrades, and rental-ready finishes.
  3. Can I convert a detached garage in LA?
    Yes — detached garages convert easily under California ADU law. We've delivered conversions across LA City, Glendale, Burbank, Pasadena, and unincorporated LA County.
  4. Do I lose required parking?
    California ADU law generally waives the replacement parking requirement for garage conversions within ½ mile of transit, which covers most of LA. We confirm during feasibility.
  5. Can the converted garage be a JADU?
    Yes — if the garage is attached to the main house, it can be permitted as a JADU (under 500 sqft, shared bath optional). JADUs follow a different LADBS path.
Begin

Begin your projectin twenty minutes.

A short feasibility review of your lot — what you can build, roughly what it costs, and how long it will take. Free of charge. No sales call afterwards unless you ask for one.

Get started→or call +1 (510) 405-5921
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  • Reply within 24 hours
  • License & insurance on request
§ Los Angeles · Garage Conversion

Garage Conversion in Los Angeles. Tell us the parcel.

Garage Conversion runs differently in every Los Angeles jurisdiction. Send your address and we'll come back with the city-specific path, the realistic timeline, and an honest all-in.

  • Garage Conversion approval rate by city in Los Angeles
  • Realistic week-by-week timeline
  • All-in cost banded to your zip
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