Milwaukee County has no retaining-wall ordinance for private land. Wall permits, height thresholds and engineering requirements are set by each incorporated city or village, so check your municipality's building code.
Because Milwaukee County does not regulate private construction, retaining-wall rules come from your municipality. Most Wisconsin cities and villages, following the state building code, require a permit and engineered plans once a wall exceeds a set height (commonly 4 feet measured from the bottom of the footing). Walls that support a surcharge or a slope may need a permit at lower heights. Contact your city or village building or inspection office for the exact threshold, setback and drainage requirements that apply to your lot.
Building an over-height retaining wall without the required municipal permit or engineering can bring a stop-work order, corrective engineering, or an order to rebuild. Penalties are set locally.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
West Allis, WI
Animal noise in West Allis falls under the general noise ordinance §7.035 and the city's animal ordinances. Persistent barking disturbing neighbors is subjec...
West Allis, WI
West Allis regulates noise and vibration under Municipal Code §7.035. The West Allis Health Department is the primary enforcement agency; Police Department m...
West Allis, WI
West Allis regulates amplified music under the noise ordinance. Wisconsin State Fair Park events operate under separate state permits. Residential areas near...
West Allis, WI
RV and recreational vehicle parking in West Allis residential areas is governed by city zoning code. Generally one RV per lot is permitted with setback requi...
West Allis, WI
Large commercial vehicles are restricted in West Allis residential zones under city zoning code. Contact West Allis Code Enforcement for specific requirements.
West Allis, WI
West Allis requires vehicles parked on improved surfaces. Front lawn parking prohibited. Driveway modifications require permits.
Side-by-side rule comparisons with other cities in Milwaukee County.
See how West Allis's retaining walls rules stack up against other locations.
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