Winnebago County's Unified Development Ordinance (Chapter 90) regulates fences in unincorporated areas through Article 18 (Temporary and Development Standards) and Article 15 (Use Standards). Corner-lot vision-clearance triangles restrict any fence, wall, hedge, or planting between 2.5 and 10 feet in height near street intersections.
Winnebago County's Planning and Zoning Division administers the Unified Development Ordinance (UDO) for unincorporated areas; municipalities such as Rockford, Loves Park, Machesney Park, and South Beloit enforce their own zoning. The UDO regulates fence location, materials, and height through use and development standards rather than a single posted height cap; typical residential fences in side and rear yards are permitted at customary heights, with stricter limits in front yards and on corner lots. On corner lots within the vision clearance triangle, no fence, wall, hedge, planting, or other obstruction may be constructed or maintained between 2.5 feet and 10 feet above the centerline of the adjoining street grades. Barbed wire, razor wire, and electrified fences are restricted in residential districts. Property owners should confirm exact height allowances and any required zoning permit with the Winnebago County Planning and Zoning Division before construction.
Contact your local code enforcement office for specific penalty information.
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See how Winnebago County's height limits rules stack up against other locations.
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