9 county-level rules, plus city-specific rules for 1 city in Philadelphia County, Pennsylvania.
Verified from official government sources
Philadelphia County is coextensive with the City of Philadelphia; Philadelphia Code Title 10 Chapter 10-400 sets nighttime quiet hours from 10 PM to 7 AM weekdays and 11 PM to 8 AM weekends. Residential sound limits apply countywide.
Construction noise in Philadelphia County is restricted to 7 AM to 8 PM Monday through Saturday per Philadelphia Code §10-403(3). Sunday and holiday construction generally prohibited without a special permit from L&I.
Barking dogs in Philadelphia County are regulated under Philadelphia Code §10-404 as a public nuisance when barking persists more than 10 minutes continuously or intermittently for 30 minutes. PA Dog Law applies countywide.
Philadelphia County restricts gas-powered leaf blowers under Bill No. 210957-A; commercial use limited to 8 AM to 6 PM weekdays and 9 AM to 5 PM Saturdays. A phased ban on gas leaf blowers begins 2026.
Amplified music and sound equipment in Philadelphia County require a permit under Philadelphia Code §10-408. Sound cannot exceed 5 dBA above ambient at the property line; outdoor amplification prohibited after 10 PM.
Aircraft noise in Philadelphia County is primarily federal jurisdiction (FAA). Philadelphia International Airport (PHL) operates a Noise Compatibility Program and complaint hotline; local ordinances cannot regulate aircraft in flight.
Commercial noise in Philadelphia County is capped at 65 dBA daytime and 55 dBA nighttime at residential property lines per Philadelphia Code §10-403. HVAC, delivery, and mechanical equipment must comply.
Philadelphia uses a "background-plus" decibel system rather than fixed dB ceilings. Residential properties must stay within 3 dB above background at the property line. Non-residential sources are allowed 5 dB above background at the nearest residential boundary and 10 dB at non-residential boundaries. Concert venues and stadiums are capped at 70 dB at the nearest residential property boundary. Amplified sound devices are limited to 65 dB beyond the property line.
Vehicle noise in Philadelphia County is regulated by Philadelphia Code §10-403 and PA Vehicle Code Title 75 §4303. Modified exhaust, loud stereos, and engine revving prohibited; dirt bikes and ATVs banned on city streets.
1 cities in Philadelphia County have their own noise ordinances rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Philadelphia County — parking, noise, fences, fires, animals, pools, and more.
Philadelphia County Ordinance Hub →