Philadelphia, PA Tree Protection: Parkway Planting (2026)
Key Facts
- Trigger
- Lots over 5,000 sq ft; 3+ lot subdivisions
- Spacing
- One tree per 35 ft of frontage
- Trunk gap
- At least 15 ft between tree trunks
- Exempt
- Single-family and two-family home lots
- Enforced by
- L&I permit review; DPR bond required
Summary
New developments over 5,000 sq. ft. must plant one street tree every 35 feet of frontage, spaced at least 15 feet apart, under Philadelphia's zoning code.
At least one street tree per 35 ft. of linear frontage shall be provided. Street trees may be placed at regular or irregular intervals, provided that there is at least 15 ft. of space between tree trunks. Where any of these standards conflict with the regulations of the Streets Department or the Department of Parks and Recreation, the least restrictive regulation shall govern.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 Code: Electronic version of The Philadelphia Code and Home Rule Charter is current through August 19, 2026).
Full Breakdown
Philadelphia's zoning code requires new development on lots larger than 5,000 square feet, and subdivisions of three or more lots, to plant street trees along the property's frontage. Before the Department of Licenses and Inspections issues a building permit, the applicant must submit a site plan, prepared by a licensed architect, landscape architect, engineer, or certified arborist, showing at least one street tree per 35 feet of linear frontage, spaced no closer than 15 feet apart. Applicants must post a bond or deposit with the City to guarantee the trees get planted, and single-family and two-family homes are exempt.
Violations & Fines
Failing to plant, replace, or maintain required street trees is a Zoning Code violation subject to enforcement penalties under § 14-306, plus forfeiture of the posted bond or deposit.
Frequently Asked Questions
Does every new building in Philadelphia need street trees?
How far apart do street trees need to be?
Sources & Official References
Other rules in Philadelphia
Compare Philadelphia to another location·View the Pennsylvania tree protection overview
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