Portland, ME Fence Regulations: Fence Permit Requirements (2026)

Portland's Land Use Code, effective July 1, 2026, addresses fences under § 7.5.4(A), a supplemental dimensional standard within Article 7 (Dimensional Standards). In residential zones, a wall or fence within 15 feet of the street may not exceed four feet in height; that cap lifts once the fence is set back into the side or rear yard, where owners may build taller fencing without a Land Use Code height violation. The 15-foot line is measured from the street, so a fence built close to the road faces the tightest limit even on a deep residential lot.

Article 7.6.5(A)(1), the section governing permitted encroachments into required setback areas, separately exempts fences from setbacks: fences, retaining walls, raised garden beds, and similar structures do not have to observe the setback that a house, garage, or deck would. That means a fence itself can sit at or near the lot line even where the underlying zone requires a 10- or 15-foot building setback. The two provisions work together: placement is essentially unrestricted by setback math, but height is capped near the street to preserve sightlines and streetscape character.

The same § 7.5.4 subsection also regulates outdoor swimming pools at § 7.5.4(B), keeping them out of front yards and at least 10 feet from the principal structure and from side or rear lot lines, useful context because yard fencing and pool siting are governed by the same supplemental-standards section of the Code, in adjacent subsections. Property owners planning a fence taller than four feet near a street frontage, or unsure which yard classification applies on an odd-shaped or corner lot, should confirm the applicable line with the City's Planning and Urban Development Department before installing fencing, since the front-yard four-foot cap is a firm numeric ceiling.