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Milwaukee County, WI Fence Regulations: Retaining Walls (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Structure covered
Structural earth retainment facility
Setback
6 inches from sidewalk
Removal notice
30 days after written notice
Cost if county removes
Billed to property owner

Summary

Milwaukee County treats a retaining wall in the public way as a 'retainment device' requiring director approval, a recordable agreement, and a minimum six-inch setback from the sidewalk.

City-specific rules exist: Milwaukee, Wauwatosa, and West Allis have their own retaining walls rules that differ from Milwaukee County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

3.Retainment devices defined as a structural earth retainment facility or fence.(8)Application. The owner of a property under consideration for the employment of a fence or retainment device defined as a structural earth retainment facility shall submit plans to the director of public works for review, approval and preparation of a recordable agreement to be executed by the owner and the proper county official. The property owner shall subsequently submit plans and obtain permits from the director of public works for the installation. Said retainment device or fence may project a distance no closer than six (6) inches from either the existing or proposed location of the sidewalk.(9)Conditions of recorded agreement and permit. The property owner shall agree to alter or remove the retainment device or fence, when deemed to interfere with a street maintenance or public improvement project, within thirty (30) days of the receipt of written notice from the director of public works

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 112).

Full Breakdown

Section 67.07 defines a retainment device as 'a structural earth retainment facility or fence' and regulates it identically to a fence when it sits in a Milwaukee County public way. The owner must submit plans to the director of public works, execute a recordable agreement, and obtain an installation permit; the structure may project no closer than six inches from the existing or proposed sidewalk. Under § 67.07(9), the owner must alter or remove the wall within thirty days of written notice if it interferes with street maintenance or a public improvement project, restoring the roadway at no cost to the county.

Violations & Fines

Failing to remove or alter a noncompliant retaining wall within 30 days of the county's written notice lets the director remove it and bill the owner for the cost.

Frequently Asked Questions

Does a retaining wall near the street need county approval?
Yes, if it sits in the county public way: it's treated as a 'retainment device' under § 67.07 and needs a director-approved permit and recordable agreement, not just a building permit.
Can Milwaukee County make me remove my retaining wall?
Yes: if it interferes with street maintenance or a public improvement project, § 67.07(9) gives you 30 days after written notice to alter or remove it at your own cost.

Sources & Official References

Other rules in Milwaukee County

All Milwaukee County rules

Compare Milwaukee County to another location·View the Wisconsin fence regulations overview

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