Los Angeles sign permit — is your storefront sign over the limit?
Los Angeles sizes your legal wall sign by a formula tied to your street and building frontage — and caps the combined area of all your signs separately. Go over and a sign violation is a misdemeanor. Enter your frontage and get a clear read before you build.
This checks on-premise wall signs in LA commercial/manufacturing zones. Off-site signs, billboards, and supergraphics are not covered. Digital/LED displays need separate review.
Lot width along the street.
Width of the building wall facing the street.
How LA sizes your sign
Unlike many cities, Los Angeles doesn't give each zoning district its own sign table. Instead, LAMC §14.4.10 sets a formula: a single-story building's wall signs facing a street can total 2 sq ft per foot of street frontage plus 1 sq ft per foot of building frontage. Taller buildings earn 10% more per story, capped at 50% over the single-story figure. Individual-letter signs that use the wall as background get a 20% bonus.
On top of that, §14.4.10 A.5 caps the combined area of all your signs — wall, projecting, monument, pole, roof, window — at 4 sq ft per foot of street frontage. Owners who max out the wall-sign formula and then add a monument or window sign are the ones who blow past the combined cap. A sign violation in LA is a misdemeanor, so this is worth checking before you build.
How to apply for a Los Angeles sign permit
LA does not hand you a district table — it hands you a formula, and then a plan check that rewards a complete first submission.
1. Run the LAMC §14.4.10 formula
A single-story building’s wall signs facing a street can total 2 sq ft per foot of street frontage plus 1 sq ft per foot of building frontage. Taller buildings earn 10% more per story, capped at 50% over the single-story figure.
2. Check whether the individual-letter bonus applies
Individual-letter signs that use the wall as background get a 20% bonus.
3. Flag digital displays and overlay areas
Digital displays fall under LAMC 14.4.4 and need their own review, and many areas restrict or ban them. HPOZ and Sign District locations add review rounds.
4. Submit a complete LADBS package the first time
Site plan, elevation drawings, stamped structural calculations, owner consent, and Title 24 documents for illuminated signs. This is the single biggest way to avoid resubmission delays.
Steps assembled from the confirmed items on this page. Fees and processing time are covered in "Cost, timeline & temporary banners" below — not repeated here.
Questions owners ask
What's "street frontage" vs "building frontage"?
Street frontage is the width of your lot along the street. Building frontage is the width of your building wall facing that street. The formula uses both.
Does my zoning change the number?
For commercial and manufacturing zones (C1, C2, C4, CM, M1, etc.) the wall-sign formula is the same. Residential zones and specific-plan areas have different rules — if your address is in one, we'll tell you and route you to a pro.
Digital / LED sign?
Digital displays face separate restrictions (LAMC 14.4.4) and many areas restrict or ban them. This screen covers static and illuminated wall signs; a digital sign needs its own review.
Is this an official ruling?
No. It's a first-pass risk filter on the public LAMC formula, not a permit and not legal advice. Final dimensions are confirmed by a licensed LA sign professional and LADBS.
Cost, timeline & temporary banners
What does an LA sign permit cost?
LA doesn't use a flat sign fee. LADBS calculates the permit from the sign's construction valuation, then California adds four statewide surcharges (Strong Motion Instrumentation, Building Standards, Green Building, plus LADBS's own surcharges). LA is known for some of the highest sign-permitting costs in the country — owners often find the all-in cost runs 30–50% above the fabrication quote once fees, structural calculations, and Title 24 energy compliance (for illuminated signs) are added. HPOZ and Sign District locations add review rounds and cost.
How long does approval take?
A simple temporary banner can clear in about two weeks; a complex illuminated wall sign typically needs 4–8 weeks for full LADBS plan check. Signs needing a variance, digital displays, or HPOZ/Sign District review take longest. Submitting a complete package — site plan, elevation drawings, stamped structural calculations, owner consent, Title 24 docs — the first time is the single biggest way to avoid resubmission delays.
Can I hang a "Grand Opening" banner first?
Not automatically exempt. Temporary banners for a grand opening are generally limited to about 30 days and usually require a LADBS temporary sign permit (often with a bond). Signs under 20 sq ft with no electrical components, and window signs under 25% of the glass, are typically exempt — but verify before hanging, since a citation and forced removal costs more than the permit.
Source: Los Angeles Department of Building and Safety (LADBS) permit and temporary-sign guidance; California statewide permit surcharges. Fees and timelines change — confirm current figures with LADBS before filing.
Source URL not obtained. Los Angeles publishes its sign rules in the Municipal Code Article 4.4 and the LAMC zoning tables. No machine-readable copy was obtained on 21 August 2026 — the LADBS sign page is application guidance and carries only one of the figures quoted here, and no code library returned the article text. We attach no substitute link, because none carries the figures, and the numbers on this page therefore stay outside the weekly automated check.
Last inspected against the official code: June 2026 · confirm current rules with the city before you file