Rock County, Wisconsin
Town of Union is a town in Rock County, Wisconsin. Town of Union adopts its own zoning, so inside its limits Town of Union’s rules apply, not the county’s. 7 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Rock County page.
All land and water inside the Town of Union limits (Rock County, WI), administered by the Town of Union board, plan commission and building inspector under the town's Chapter 17 Zoning Ordinance
“the jurisdiction of this ordinance shall include all lands and waters in the town of union, rock county, wisconsin”
Zoning districts inside the Town of Union limits
“the town of union is hereby divided into the following zoning districts”
Main single-family residential district: R-R rural residential district inside Town of Union
minimum lot size: >= 40000 sq. ft.
“(4) requirements for permitted and conditional uses within the r-r district the following standards shall apply: minimum lot size [...] 40,000 sq. ft.”
Public camping grounds (camping grounds open to the public with buildings or structures) in the Town of Union agricultural zoning districts
“the following conditional uses are not permitted in any agricultural zoning districts”
Manufactured and mobile homes (HUD code) on land inside the Town of Union
“mobile homes and manufactured homes (hud code) are only allowed in the mobile home park district (mhp) or by conditional use as permitted under the corresponding land zoning district”
Land divisions in agricultural districts A-1 through A-4 inside Town of Union
“to review and recommend to the town board approval, conditional approval or denial of requests for a-1, a-2, a-3, and a-4 conditional use permit land divisions”
Zoning and building permit process run by the Town of Union building inspector
“the building inspector may issue building permits which are within strict compliance with the requirements of this ordinance”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Union or Rock County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Town of Union publishes no rule on the point, not that none exists. Rock County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Union means bringing your own water and power. The kit we’d start with:
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