Permits / Service
Permits for a garage conversion ADU
Converting a garage reuses an existing structure, so the permit discussion starts with what is already there: its permit record, slab, walls, roof and distance to property lines.
What decides the path
Is the garage on the record?
A permitted garage is a different starting point than an unpermitted structure. Check the permit history first.
Existing building, current code
Habitable space needs insulation, egress, ventilation and utilities that most garages lack; the drawings show how each is met.
Slab and moisture
The slab's condition and moisture control often decide between converting and rebuilding.
How to prepare this submittal
1. Confirm the garage's permitted status
Find the permit record for the garage itself. A structure that was never permitted is handled differently from a permitted one.
Garage conversion or another ADU type →2. Measure what already exists
Ceiling height, slab condition, wall framing and distance to property lines decide how much of the existing shell can stay.
See how a structure check enters the budget →3. Draw the garage-door infill
The new wall, windows, egress and insulation replace the garage door; energy compliance is shown for the converted space.
Energy questions before design →4. Plan parking and storage
Ask the city how it treats the lost covered parking for your parcel, and decide where stored items go before work starts.
Find the parcel's reviewing authority →5. Route plumbing and power
A new bathroom or kitchen needs a sewer route and may need more electrical capacity; locate both before the layout is fixed.
See the conversion dependency map →
What is specific to this service
The shared stages (authority, planning check, plan check and inspections) are explained once on the permits index; this page records only what differs. See how review usually proceeds
Parking questions
Whether replacement parking applies depends on state law and the city's current standards; confirm it for your address.
Openings and fire separation
Replacing the garage door with a wall and windows, and separation from the house if attached, are reviewed items.
Checklist to bring
- Property address
- Garage permit history, if any
- Photos of slab, walls, roof framing
- Garage distance to property lines
- Electrical panel photo
Questions
- Can any garage become an ADU?
- Conversions are a recognized ADU type, but eligibility is decided by the city and practicality by the structure's condition.
- Is converting always cheaper than building new?
- Not always. A failing slab or roof can erase the advantage; we evaluate before recommending either.
Related services
Authority pages
- City of Los Angeles permits
- Beverly Hills permits
- Santa Monica permits
- Culver City permits
- Pasadena permits
- Burbank permits
- Long Beach permits
- West Hollywood permits
- Calabasas permits
- Glendale permits
- Malibu permits
- Inglewood permits
- Manhattan Beach permits
- Hermosa Beach permits
- Redondo Beach permits
- Palos Verdes Estates permits
- Torrance permits
- Garage conversion cost factors
- Garage conversion timeline
- Glossary of terms
- All permit pages
KB Remodeling · Greater Los Angeles
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