Cambridge, MA Fence Regulations: Material Restrictions (2026)

Cambridge regulates fence materials through zoning, Chapter 8.20 property maintenance, and historic district rules. Barbed wire, razor wire, and concertina wire are prohibited in all residential zones and most mixed-use districts; they may be allowed on industrial sites with special permits. Electric fences are prohibited except for livestock (which are also prohibited in most zones, making electric fences effectively unavailable). Within the 9 local historic districts, the Cambridge Historical Commission reviews and must approve all fence materials. Approved materials typically include painted wood (picket, board, shadowbox), wrought iron, and cast iron; PVC/vinyl, chain-link, and composite fences are often denied in historic districts for being anachronistic. Non-historic neighborhoods allow a wider range including chain-link, vinyl, and composite, though chain-link is discouraged in front yards. All fences must be maintained and not deteriorate into blight.