Montgomery County regulates fence placement under Ch 59 Zoning Ordinance requiring setback compliance, finished side facing outward, and prohibited materials including barbed wire in residential zones. Fences must not obstruct drainage or stormwater flow in the Chesapeake Bay watershed.
Montgomery County Zoning Ordinance Ch 59 governs fence placement and construction standards. Fences must be set back from property lines to avoid encroachment on neighboring land; survey verification is recommended. The finished or decorative side must face outward toward neighboring properties and public areas. Barbed wire and razor wire are prohibited in all residential zones. Electric fences are only permitted in agricultural (AR) zones for livestock containment. Chain-link fences are allowed but many HOAs restrict them. Fences must not impede natural stormwater drainage patterns, which is especially enforced in Chesapeake Bay Critical Area buffer zones. Montgomery County requires that fences in floodplain areas allow water passage (no solid fences blocking flood flow). Construction debris from fence installation must be properly disposed of under county solid waste regulations. Shared boundary fences are governed by Maryland common law requiring mutual consent for modifications.
Zoning violation notice: 30-day correction period. Barbed wire in residential zone: immediate removal order. Drainage obstruction: DEP enforcement with fines up to $1,000 per day. Encroachment on neighbor property: civil action for removal.
See how Montgomery County's fence requirements rules stack up against other locations.
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