Building Safety in Winnebago County, WI (2026)
2 county-level rules, plus city-specific rules for 1 city in Winnebago County, Wisconsin.
Verified from official government sources
Building Permits
In towns that adopted Winnebago County's zoning ordinance, a permit is required before building, moving, or enlarging a deck, and patios must stay at least five feet from every property line.
Deck & Patio Permits in Winnebago County
Some RestrictionsWinnebago County Code Ch. 23 §§ 23.7-271(a), 23.8-450(a), 23.8-479(a)(1) (Town/County Zoning)
No structure associated with a land use listed in the land use matrix under s. 23.8-41 shall be established, expanded, located, erected, moved, reconstructed, enlarged, extended, converted, or structurally altered without a zoning permit, except those specifically exempted in that section. ... When attached or adjoining a principal building, the deck shall meet the required yard, height, and se...
Building Inspections
Winnebago County requires a licensed zoning staffer to inspect every new private septic system (POWTS) before backfilling, with 24-hour advance notice needed to schedule the visit.
Winnebago County Septic System Inspection Rules
Some RestrictionsWinnebago County Code Ch. 16 § 16.02(2)(a), (5)
(2) INSPECTIONS (a) Private On-Site Wastewater Treatment System: A licensed staff member shall inspect or cause the inspection of all POWTS no later than the next workday after completion of construction (excluding Saturdays, Sundays and holidays) but before backfilling. ... (5) ... All requests for inspections shall be made at least 24 hours in advance of the requested time and date of the ins...
Building Safety by City in Winnebago County
1 cities in Winnebago County have their own building safety rules. Each link goes to that city's dedicated page with code citations.
All Winnebago County ordinances
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Winnebago County Ordinance Hub →