Maximum lot coverage and impervious-surface limits for general zoning are set by your city, village, or unincorporated town. Rock County directly limits impervious surface only within its shoreland districts, where NR 115 caps hard-surface coverage near navigable water.
General lot-coverage ratios (building footprint or total impervious area as a share of the lot) are municipal or town zoning standards, not county. Rock County's binding coverage authority is shoreland zoning under NR 115: impervious surfaces within the shoreland zone are limited (commonly to 15 percent of the lot within 300 feet of the water, with mitigation allowed up to 30 percent), and a 35-foot vegetative buffer landward of the ordinary high-water mark must generally be preserved. These limits apply within 1,000 feet of a lake or 300 feet of a stream. Outside shoreland and floodplain areas, ask your local zoning administrator for the lot-coverage maximum.
Municipal zoning enforces general coverage limits. Exceeding shoreland impervious-surface caps or disturbing the buffer draws county enforcement, mitigation orders, and forfeitures.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Rock County, WI
Wisconsin's cruelty statute (Ch. 951) makes it illegal to keep animals without proper food, water, and shelter, which is how hoarding is enforced. Rock Count...
Rock County, WI
Rock County has no blanket countywide wildlife-feeding ban, but deer and elk feeding is regulated statewide, and nuisance-feeding of wild animals is addresse...
Rock County, WI
Rock County encourages waste reduction and does not ban backyard composting. Wisconsin bans yard waste from landfills, so composting is favored. Nuisance con...
Rock County, WI
Rock County has no countywide ordinance regulating artificial turf. Whether synthetic grass is allowed, and any coverage or stormwater conditions, is decided...
Rock County, WI
Rock County does not ban native or naturalized landscaping, but the mandatory noxious-weed duty still applies. Near navigable water, native shoreland buffers...
Rock County, WI
Collecting rainwater is legal in Wisconsin and Rock County sets no barrier to rain barrels. There is no state permit for a basic downspout rain barrel used f...
See how Rock County's lot coverage limits rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.