Fence Regulations in Waukesha County, WI (2026)
5 county-level rules, plus city-specific rules for 1 city in Waukesha County, Wisconsin.
Verified from official government sources
Height Limits
Waukesha County's zoning code excludes fences from its definition of "Structure," so ordinary offset and setback height rules do not apply to them, but a two-foot height cap kicks in inside the vision setback triangle at road and rail intersections.
Corner Fence Height Limits in Waukesha County
Light RestrictionsWaukesha County Basic Zoning Ordinance Sec. 3.09(1)(D)
(D) In the Vision Setback area no Structure of any kind shall be permitted which exceeds a height of two (2) feet above the elevation of the center of the intersection, except for necessary highway and traffic signs, public utility lines, and open fences through which there is clear vision, nor shall any plant material be permitted which obscures safe vision of the approaches to the intersection.
Fence Permit Requirements
The county treats a fence as excluded from its "Structure" definition, so no county zoning permit is required for an ordinary fence in unincorporated towns. Fences within 75 feet of a lake or river are regulated under the Shoreland Ordinance. Cities and villages may require their own permit.
Do You Need a Fence Permit in Waukesha County?
Some RestrictionsWaukesha County Shoreland & Floodland Protection Ordinance, Structure definition
The term "structure" does not include flag poles, mailboxes, fences (unless located within 75 ft. of the ordinary high water mark of a navigable waterway)...
Neighbor Fence Rules
Boundary-fence disputes in Waukesha County are governed by Wisconsin's partition-fence law, not the county. On adjoining farm or grazing land, both owners must build and maintain the line fence in equal shares. For residential lots, cost-sharing is usually a private matter unless a town fence viewer is involved.
Shared Fence Rules Between Neighbors in Wisconsin
Some RestrictionsWis. Stat. 90.03
The respective occupants of adjoining lands used and occupied for farming or grazing purposes... shall keep and maintain partition fences between their own and the adjoining premises in equal shares.
Retaining Walls
Waukesha County regulates retaining walls as Structures. A wall five feet or greater from a lot line generally needs a Minor Grading zoning permit and an owner agreement; a wall closer than five feet to a lot line needs specific Plan Commission and County Zoning Agency authorization. Near water, walls
Retaining Wall Rules in Waukesha County WI
Some RestrictionsWaukesha County Basic Zoning Ordinance (Retaining Walls)
A Retaining Wall five (5) feet or greater from a property line, may be allowed pursuant to issuance of a Zoning Permit (Minor Grading Permit) and an agreement being made between the owner and the Town Planning Commission and the County Zoning Administrator.
Material Restrictions
Waukesha County's zoning code imposes no general fence-material palette for residential lots in unincorporated towns. Material rules appear only in specific contexts: refuse-disposal sites need a non-flammable fence, corner-vision fences must be open and see-through, and near water any fence is regulated as a shoreland structure.
Fence Material Restrictions in Waukesha County WI
Some RestrictionsWaukesha County Basic Zoning Ordinance (disposal-site fencing)
A non-flammable fence, with a gate which can be locked, must be erected to encompass the disposal site to prevent refuse disposal and scavenging during non-operating hours.
Fence Regulations by City in Waukesha County
1 cities in Waukesha County have their own fence regulations rules. Each link goes to that city's dedicated page with code citations.
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