Allentown, PA Sign Regulations: Freeway-Facing Signs (2026)

A(2) sets a 30-foot maximum height for off-premise outdoor advertising signs generally, then carves out freeway-facing billboards: for signs located adjacent to and directed toward an interstate highway, where the lot is below the grade of the highway that the sign is directed towards, the total maximum height may be 25 feet above the grade of the highway centerline. Because that height is measured from the elevated highway's centerline rather than from the sign's own lower lot, the effective structure can end up taller than 30 feet as seen from the ground, giving billboard owners more visibility toward passing highway traffic.

The area limit gets a parallel boost: subsection A(4) caps off-premise sign area at 300 square feet citywide, except when such a sign is located within 200 feet of the right-of-way of and intended or designed to be viewed from Interstate Route 78 or United States Route 22, in which case the maximum sign area allowed is 672 square feet, more than double the standard cap. Both exceptions still sit inside the broader billboard framework of § 660-104: signs remain limited to IG- and IM-zoned lots or grandfathered former B-3 lots, must keep the standard 300-foot setback from N-zoned lots and other billboards (1,000 feet if dynamic), and can still convert to a digital display only by meeting § 660-105's operating rules. D.