Mosinee, WI Building Safety: Building Permits (2026)
Key Facts
- Permit issuer
- Building inspector
- Permit lapse
- 6 months unused or 6 months stalled
- Plan waiver threshold
- Work under $2,000
- Minor repair exemption
- Under $500, no permit
- Unpermitted start penalty
- Doubles the permit fee
- Residential lots
- Must abut a dedicated street
Summary
The City of Mosinee requires a building permit from the building inspector before any building is erected or ground is broken, under Sec. 42-1359(a), covering everything from new construction to signs, moving and razing. The permit lapses under Sec. 42-1354 if work does not start within six months or stalls for six months or more.
A building, electrical or plumbing permit shall lapse and be void unless operations under the permit are commenced within six months from the date of issuance thereof. ... (a)Permit required. No building of any part thereof shall after the effective date of the ordinance from which this article is derived be erected within the city or ground broken for the same, except as provided in this section, until a permit therefor shall first have been obtained from the building inspector by the owner, or his authorized agent. The term "building" as used in this section shall include any building or structure, and any enlargement, alteration, heating or ventilating installation, sign, building moving, building razing or anything affecting the fire hazards or safety of any building or structure.
Full Breakdown
Sec. 42-1359(a) bars erecting any part of a building, breaking ground, or doing an enlargement, alteration, heating or ventilating installation, sign work, building move or razing, until the owner or an authorized agent obtains a permit from the building inspector. The written application under subsection (b) must name the landowner, describe the land legally, name the designer and state the building's use. Subsection (c) blocks a residential building permit unless the lot abuts a dedicated street, and subsection (d) requires sewer, water, grading and graveling to already be installed, or under contract for nonresidential work, before the permit issues.
Two full sets of plans go with the application under subsection (e), one of which stays on file with the building inspector, and plans for one- and two-family dwellings must meet Wis. Adm. 09(4). The inspector can waive plans for alterations or repairs under $2,000 (subsection (f)) and can authorize minor repairs under $500 without any permit at all (subsection (h)). Once issued, Sec. 42-1354 gives the permit a six-month clock: it lapses if the owner does not start work within six months of issuance, and it also lapses if work is discontinued for six months or more, forcing a new application before work can resume. Building, electrical and plumbing permits all share this same lapse rule.
Violations & Fines
Sec. 42-1355 lets the building inspector revoke a building permit by written notice posted at the job site if work fails to comply and the holder refuses to correct it after warning, making further work under that permit unlawful. Sec. 42-1376 makes any building erected in violation of the article unlawful, letting the city attorney sue to enjoin the work or force removal, in addition to the penalty in Sec. 1-13, and starting work before a permit issues doubles the required permit fee.
Frequently Asked Questions
Do I need a permit to build or add onto a building in Mosinee?
How long is a Mosinee building permit good for?
Can I skip the permit for a small repair?
What happens if I start construction before getting a permit?
Sources & Official References
Other rules in Mosinee
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Building Permits in Nearby Cities
How other cities in Marathon County handle building permits.