Fence Regulations in Allegheny County, PA (2026)
1 county-level rule, plus city-specific rules for 2 cities in Allegheny County, Pennsylvania.
Verified from official government sources
Retaining Walls
Allegheny County does not issue retaining wall permits: building authority rests with each of the 130 municipalities under the Pennsylvania Uniform Construction Code (Act 45 of 1999, 35 P.S. 7210.101). UCC at 34 Pa. Code Section 403.62 exempts retaining walls 4 feet or less in height (measured from the lowest grade to the top of the wall) unless the wall supports a surcharge or impounds Class I, II, or III-A liquids. Walls over 4 feet, walls supporting a driveway, building, or steep slope, and any earth disturbance over 5,000 sq ft also trigger Allegheny County Conservation District (ACCD) review under 25 Pa. Code Chapter 102.
Allegheny County Retaining Wall Permits
Some Restrictions34 Pa. Code § 403.62 - Permit requirements and exemptions (Uniform Construction Code)
§ 403.62. Permit requirements and exemptions. (a) An owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a residential building or erect, install, enlarge, alter, repair, remove, convert or replace an electrical, gas, mechanical or plumbing system regulated by the Uniform Construction Code shall first apply to the building code o...
Fence Regulations by City in Allegheny County
2 cities in Allegheny County have their own fence regulations rules. Each link goes to that city's dedicated page with code citations.
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