Wausau, WI Fence Regulations: Retaining Walls (2026)
Key Facts
- Permit trigger
- Any new or reconstructed retaining wall
- Plan approval
- Building Inspector; engineer/architect if required
- Appeal path
- Building Advisory Board
- Owner duty
- Keep wall in safe, aesthetic repair
- Noncompliance cost
- City repairs/removes, bills owner
Summary
Wausau requires a building permit before any retaining wall is built or rebuilt, and the Building Inspector can demand engineer- or architect-approved plans before signing off. Owners must also keep existing walls in safe, presentable repair or face a City-ordered fix under Municipal Code § 15.30.010 and § 15.30.020.
(a)A building permit shall be obtained whenever a retaining wall is to be constructed or reconstructed.(b)Prior to issuance of such permit, construction or reconstruction plans and design data of the proposed structure shall be submitted to and approved by the Building Inspector, who may require that the plans be approved by a registered professional engineer or architect. The applicant may appeal the Building Inspector's decision to the Building Advisory Board. ... (a)The property owner shall maintain and keep existing retaining walls in reasonably safe and aesthetic repair.(b)If, in the opinion of the Building Inspector, an existing retaining wall is beyond safe repair or is creating a hazard to the public, the inspector shall order the removal or reconstruction of the retaining wall and set a reasonable time limit for compliance.(c)If the property owner refuses to maintain, repair or replace as ordered within the time limit specified, the City may accomplish the necessary work or contract the necessary work to others, and all costs therefor shall be charged against the property.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 12 Update 2).
Full Breakdown
010 makes a building permit mandatory whenever a retaining wall is constructed or reconstructed anywhere in the City. Before that permit issues, the applicant must submit construction or reconstruction plans and design data to the Building Inspector for approval, and the Inspector can require the plans carry the stamp of a registered professional engineer or architect if the wall's size or site warrants it. 04. 020 then imposes an ongoing duty: the property owner must maintain existing retaining walls in reasonably safe and aesthetic repair.
If, in the Building Inspector's opinion, a wall is beyond safe repair or has become a public hazard, the Inspector orders its removal or reconstruction and sets a reasonable compliance deadline. Should the owner refuse to maintain, repair, or replace the wall by that deadline, the City can do the work itself or hire a contractor, then charge all costs against the property, typically collected the same way as other special charges through the tax roll. 030, so there is no separate, higher fee category for retaining walls specifically.
Violations & Fines
Building or rebuilding a retaining wall without the required permit, or ignoring a Building Inspector order to repair or remove an unsafe wall, exposes an owner to the City performing the work and billing the full cost against the property, plus the general City forfeiture of $10.00 to $200.00 per offense under § 1.01.110 since Chapter 15.30 sets no wall-specific fine.
Frequently Asked Questions
Do I need a permit to build a retaining wall in Wausau?
Can Wausau make me fix a crumbling retaining wall?
What if I refuse to repair a retaining wall Wausau has flagged?
Sources & Official References
Other rules in Wausau
Compare Wausau to another location·View the Wisconsin fence regulations overview
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Retaining Walls in Nearby Cities
How other cities in Marathon County handle retaining walls.