Milwaukee County does not regulate fence heights - all 19 municipalities (10 cities, 9 villages) adopt their own fence rules under Wis. Stat. sec. 62.23 and sec. 61.35. Common pattern: 4 ft maximum in front yards, 6 ft maximum in side and rear yards. City of Milwaukee permits 6 ft fences in side/rear yards and 4 ft in front yards. Wauwatosa allows up to 6 ft in side/rear yards (4.5 ft without a permit), with front yard fences capped at 3 ft and requiring a permit. West Allis allows 6 ft side/rear and prohibits fences in required front yards (Revised Municipal Code sec. 13.31). Vision-triangle restrictions at corners typically cap fences at 3 ft.
Wisconsin has no statewide residential fence-height limit; authority is delegated to municipalities through Wis. Stat. sec. 62.23 (city zoning) and sec. 61.35 (village zoning, which incorporates the city statute by reference). Milwaukee County itself does not regulate fences on private residential lots - the county code addresses parks, public lands, and county facilities, not neighborhood fence heights. City of Milwaukee Code Chapter 295 (Zoning) and Chapter 200 (Building Code) govern fences inside city limits: 4 feet maximum in required front yards and 6 feet in side and rear yards is the standard residential pattern, with permits required for taller or commercial installations. Wauwatosa Chapter 15.28 of the Municipal Code permits residential fences up to 4.5 feet in side and rear yards without a permit (per Ordinance O-13-10 amending Chapter 15.28 to allow rear yards up to 6 feet); front yard fences require a permit and are capped at 3 feet. Fences abutting alleys must be set back 18 inches. West Allis Revised Municipal Code sec. 13.31 allows fences up to 6 feet in side and rear yards along the property line; fences are not permitted in required front yards. The vision triangle at street and alley intersections caps fence height at 3 feet on residential lots throughout most Milwaukee County jurisdictions. Barbed wire, razor wire, and electrified fencing are generally prohibited in residential zones across the county. Always confirm with the specific city or village before construction - rules vary materially among Cudahy, Franklin, Glendale, Greenfield, Oak Creek, St. Francis, South Milwaukee, the villages of Bayside, Brown Deer, Fox Point, Greendale, Hales Corners, River Hills, Shorewood, West Milwaukee, Whitefish Bay, and the City of Milwaukee.
Building over the local height cap or without a required permit triggers a stop-work order and a zoning citation from the city or village building department. Typical municipal forfeitures range from $100 to $500 per violation, and continuing violations accrue daily. After-the-fact permits cost more than standard permits. Non-conforming fences may be ordered removed or lowered.
See how Milwaukee County's height limits rules stack up against other locations.
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