Tree Protection in Allegheny County, PA (2026)
2 county-level rules, plus city-specific rules for 1 city in Allegheny County, Pennsylvania.
Verified from official government sources
Heritage & Protected Trees
Allegheny County flatly bars approval of any subdivision or land development plan that would destroy a tree listed on its official Register of Bicentennial Trees.
Allegheny County Bicentennial Tree Ban
Heavy RestrictionsAllegheny County Code § 780-506.C
Preservation of bicentennial trees. No subdivision or land development shall be approved which includes the destruction of a tree listed in the Allegheny County Register of Bicentennial Trees.
Parkway Planting
Allegheny County requires street trees along both sides of new subdivision and land development streets, with minimum trunk calipers and spacing set by tree size under the county land-development code.
Allegheny County Street Tree Planting Rules
Some RestrictionsAllegheny County Subdivision and Land Development Ordinance § 780-512.D
Street trees shall be provided along the entire length of the street right-of-way on both sides of the street if the street lies within the development. (2) Street trees in residential subdivisions shall be located within five feet of the right-of-way and in nonresidential developments between the right-of-way and the building line. An easement shall be granted to the municipality for the pu...
Tree Protection by City in Allegheny County
1 cities in Allegheny County have their own tree protection rules. Each link goes to that city's dedicated page with code citations.
All Allegheny County ordinances
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