Rock County, WI Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- Shoreland setback
- 75 ft from high-water mark
- Minimum reduced setback
- 35 ft, never less
- Shoreland applies within
- 1,000 ft lake / 300 ft stream
- General yard setbacks
- Set by city or town
- County chapters
- 4.2 shoreland / 4.4 floodplain
Summary
General yard setbacks are set by your city, village, or town zoning. Rock County directly enforces the mandatory shoreland setback: at least 75 feet from the ordinary high-water mark of navigable waters for buildings and structures, under NR 115 and the county shoreland ordinance.
Shoreland setback. Except where exempt under subd. 1m., a setback of 75 feet from the ordinary high-water mark of any navigable waters to the nearest part of a building or structure shall be required for all buildings and structures.
Full Breakdown
For ordinary front, side, and rear yard setbacks, Wisconsin cities and villages and each unincorporated town set their own dimensions, not the county. Rock County's binding setback authority is its shoreland zoning (Code Chapter 4.2), which follows the DNR's NR 115 minimum standards: a 75-foot building setback from the ordinary high-water mark of any navigable water, reducible only to the average of adjacent principal structures and never below 35 feet. Shoreland zoning applies within 1,000 feet of a lake, pond, or flowage and 300 feet of a river or stream (or to the floodplain edge). Floodplain districts (Chapter 4.4) add further placement limits.
Violations & Fines
Shoreland-setback violations draw county enforcement: stop-work orders, after-the-fact permit review, restoration, and forfeitures. General yard-setback violations are enforced by your city or town.
Frequently Asked Questions
How far must a building sit from the lake?
Who sets my normal yard setbacks?
Sources & Official References
Other rules in Rock County
Compare Rock County to another location·View the Wisconsin building setbacks & zoning overview
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