Mosinee, WI Fence Regulations: Neighbor Fence Rules (2026)
Key Facts
- Trigger
- Fence directly on side/rear property line
- Requirement
- Signed recordable easement agreement
- Excludes
- Lot lines adjacent to an alley
- Default without agreement
- 3-ft (or 1-ft chain-link) setback
- Governing section
- § 42-788(c)(7)
Summary
To build a fence directly on a side or rear property line in Mosinee, where there's no adjoining alley, both neighboring owners must first sign a recordable Common Property Fence Line and Cross Access Easement Agreement, per § 42-788(c)(7); without that agreement, the standard boundary-fence setbacks apply instead.
(7)Property line fences. Fences may be installed on a side yard property line or a rear yard property line where there is no adjacent alley if all affected parties agree to sign a recordable Common Property Fence Line and Cross Access Easement Agreement.
Full Breakdown
Section 42-788(b)(1) defines a "boundary fence" as one placed to define all or part of a property line, and, as a default rule, requires it to sit at least three feet off that line, or one foot for a chain-link fence, and never within five feet of an adjacent alley. " The boundary-fence rule in (b)(1) itself cross-references this exception, confirming that (c)(7) is the mechanism for building a fence on the line rather than three feet back from it. Because the agreement has to be "recordable," it is meant to be filed against both properties' titles so the arrangement runs with the land rather than expiring when either owner sells.
The exception is narrow: it applies only to side and rear lines, not to a lot line running along an alley, and it does not touch the separate height rules in § 42-788(c)(1) through (c)(3), which still cap the fence at six feet, three feet in a corner side yard, or eight feet next to nonresidential property, regardless of who signed the easement.
Violations & Fines
A fence built on the line without the required signed and recordable easement agreement is a zoning violation under § 42-67. The common council, zoning administrator, plan commission, or a specifically damaged neighbor may sue to enjoin the violation or have the fence relocated to the standard setback; a conviction carries a forfeiture with a $100 statutory minimum plus any additional penalty under § 1-13.
Frequently Asked Questions
Can two neighbors in Mosinee agree to build a fence exactly on their shared property line?
What happens if my neighbor won't sign the agreement?
Does this agreement need to be recorded anywhere?
Does this exception apply to a fence along an alley?
Sources & Official References
Other rules in Mosinee
Compare Mosinee to another location·View the Wisconsin fence regulations overview
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