Philadelphia sizes your wall sign by a simple formula: 2 square feet per foot of your storefront frontage. Go over and your permit gets rejected. 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.
Width of your storefront along the street.
How LA sizes your sign
Philadelphia keeps it simple: under §14-904, your accessory wall sign can total 2 square feet for every linear foot of ground-floor street frontage. A 25-foot storefront gets 50 sq ft of wall signage. You can add a bit more on the second floor (0.5 sq ft per foot of frontage), and freestanding signs follow their own height rules.
The catch is the special areas: Center City, Market Street East, and the Parkway buffer have their own rules and Art Commission review that override this formula. This tool applies the citywide §14-904 rule and flags when you should check with a pro.
Questions owners ask
What counts as my frontage?
The width of your ground-floor storefront along the street. Your wall-sign allowance is that number × 2 square feet.
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 (Phila. Code 14-904.4) 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 Phila. Zoning Code formula, not a permit and not legal advice. Final dimensions are confirmed by a licensed Philadelphia sign professional and Philadelphia L&I.
Cost, timeline & temporary banners
What does a Philadelphia sign permit cost?
Most signs need two permits: a zoning permit and a building permit. The zoning permit fee is $207 per accessory sign (advertising your own on-site business) or $325 per non-accessory sign (advertising something elsewhere). The building permit adds a $100 filing fee when plans are required (credited toward the final fee). Signs that meet the city's EZ Standard for Sign Installation skip the plans and the filing fee. Optional accelerated review costs extra.
How long does approval take?
Applications with plans are processed within 20 business days through L&I's eCLIPSE system. You can pay for accelerated review to get a decision in 5 business days, and EZ Standard applications are also handled in 5 business days (applications without plans are often processed while you wait). Center City signs almost always need separate Art Commission approval, and historic properties need Historical Commission sign-off before L&I will even accept the application — both add weeks.
Can I hang a "Grand Opening" banner first?
A temporary outdoor sign is exempt from a permit only if it's no more than 6 sq ft on a residential building or 12 sq ft on a commercial building; window signs covering 20% or less of the glass are also exempt. A larger banner needs a permit, and banners spanning a street or the public right-of-way go through the Special Events office, not just L&I.
Source: City of Philadelphia Department of Licenses & Inspections (zoning and building sign permits); Philadelphia Zoning Code. Fees and timelines change — confirm current figures with L&I before filing.
Last inspected against the official code: June 2026 · confirm current rules with the city before you file