Neenah's Accessory Structures: The Rules That Matter

Every city handles accessory structures a little differently. In Neenah, Wisconsin, there are 2 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Shed Rules

Neenah's published Garages and Storage Sheds handout from the Community Development Department limits each property to one (1) storage shed of no more than 200 gross square feet, with a maximum wall height of 10 feet on two elevations and a maximum overall height of 15 feet. A shed located more than 5 feet from the principal dwelling needs only a 3-foot side and rear yard setback (or 6 feet if placed in the actual side yard), but a shed within 5 feet of the dwelling must meet the dwelling's full setbacks: 30-foot rear, 6-foot side, 16-foot aggregate side, and 25-foot front.

Key details: Max Shed Size: 200 sq ft. Max Height: 15 feet. Side/Rear Setback: 3 feet. Within 5' of Home: Dwelling setbacks. Front Setback: 25 feet.

A shed installed without the required permit, exceeding the 200-square-foot limit, taller than the 15-foot overall height cap, or inside the 3-foot side or rear yard setback violates the Neenah Garages and Storage Sheds handout enforced by the Community Development Department - Building Inspections Division. Typical responses include a stop-work order, an after-the-fact permit and fee, and an order to relocate or remove the structure. Continued non-compliance is enforced through the City Attorney's office under the Neenah Municipal Code.

ADU Rules

Accessory dwelling units in Neenah are governed by the city Zoning Ordinance, Chapter 26 of the Code of Ordinances, adopted under the city zoning authority granted by Wis. Stat. Sec. 62.23. The city's zoning regulations control the residential districts in which a second dwelling unit (attached or detached, including two-family conversions) may be permitted, along with use, density, lot, setback, height, parking, and accessory-building standards. Property owners must verify the zoning district of their parcel and confirm that the proposed unit is a permitted or conditional use under Chapter 26 before applying. Building permits are issued through the City of Neenah Inspection Division (Department of Community Development).

Key details: Zoning Is In: Zoning is in Chapter 26 of the Neenah Code of Ordinances. City Zoning Authority: City zoning authority comes from Wis. Stat. Sec. 62.23(7). No Standalone State: No standalone state-mandated ADU ordinance in Wisconsin. Second Dwelling Units: Second dwelling units must be allowed in the underlying zoning district. Detached Accessory Buildings: Detached accessory buildings cannot be used as separate dwellings unless zoning permits.

Constructing or occupying a second dwelling unit without zoning approval and a building permit is a violation of Chapter 26 and the Wisconsin Uniform Dwelling Code. Typical enforcement under Wis. Stat. Sec. 62.23(8) and Sec. 66.0114 includes stop-work orders, citations, daily forfeitures, and orders to remove or modify the structure. Using a detached accessory building or garage as a separate residence in a district that does not permit a second dwelling unit is independently enforceable, and unpermitted electrical or plumbing work can be cited under the state UDC.

The Bottom Line

Neenah's accessory structures rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Neenah is broadly strict or permissive.

All of the above reflects Neenah's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.