LA building permit guides
Plain-English answers to the permit questions LA homeowners actually ask. Every guide is LA-specific, code-cited, and updated for 2026.
Do I Need a Permit to Replace a Water Heater in LA?
Yes — LADBS requires a permit for nearly every water heater replacement in LA. Most qualify for an Express Plumbing Permit issued online for $80–$120.
Do I Need a Permit to Remodel My Kitchen in LA?
Yes — LADBS requires a permit for nearly every kitchen remodel in LA. Permit cost for a $30K–$60K remodel runs $1,200–$2,500. Cabinet-only swaps are exempt.
Do I Need a Permit to Remodel My Bathroom in LA?
Yes — almost every bathroom remodel in LA needs a permit. Total permit cost for a $15K–$30K bathroom remodel runs $800–$1,800. Vanity-only swaps may be exempt.
Do I Need a Permit for an ADU in LA? (2026)
Yes — every ADU in LA requires a building permit, plus zoning clearance, sewer fees, and an LAHD covenant. State law caps neighbor-input objections; LADBS must approve a complete application within 60 days.
How Much Does an ADU Permit Cost in LA? (2026)
ADU permit fees in LA run $4,000–$15,000 in 2026 depending on type and valuation. Garage conversions are cheapest; detached new construction is the priciest. Full breakdown by type below.
How Much Does an LADBS Building Permit Cost in 2026?
LADBS building permit fees in 2026 are calculated as a percentage of project valuation under LAMC §98.0403. Plan check adds 90%. Total fees typically run 5–8% of project value.
LADBS Express Permit vs Standard Permit: Which Do You Need?
Express Permits issue same-day for simple swaps with no drawings or plan check. Standard Permits cover everything structural, with plan check at 90% of the building permit fee.
What Happens If You Remodel Without a Permit in LA?
Unpermitted work in LA triggers a $356 Code Violation Inspection Fee, retroactive permitting at 2× original fees under LAMC §91.107.5.1, and lender/insurance complications at resale.
Do I Need a Permit for Solar Panels in LA?
Yes — every rooftop solar PV system in LA requires a building and electrical permit from LADBS. Total permit cost typically $400–$800 for residential installs.
Do I Need a Permit to Replace Windows in LA?
Yes — LADBS requires an Express Building Permit for window replacement in LA. Same-size, same-type swaps cost $100–$200 total and issue in 1–3 days.