Columbia County, Wisconsin
Town of Caledonia is a town in Columbia County, Wisconsin. Town of Caledonia adopts its own zoning, so inside its limits Town of Caledonia’s rules apply, not the county’s. Septic permits inside Town of Caledonia come from Columbia County (Columbia County Planning & Zoning Department · (608) 742-9660). 3 rules below are quoted from official sources and independently re-checked, most recently on November 9, 2026. Rules for unincorporated land are on the Columbia County page.
Construction, erection, alteration, enlargement, repair, movement, conversion, or demolition of a building, structure, or mechanical system inside the Town of Caledonia, Columbia County, Wisconsin.
“no owner or contractor may construct [...] or demolish any building, structure or mechanical system until a valid permit is obtained from a Municipal Building Inspector.”
Land inside the Town of Caledonia, Columbia County, Wisconsin, where the town board has adopted the Columbia County Zoning Code.
“The Columbia County Zoning Ordinance [...] is in effect within 19 of the 21 unincorporated Towns including the Town of Caledonia.”
Private sewage systems and non-plumbing sanitation systems inside the Town of Caledonia, Columbia County, Wisconsin.
“Jurisdiction of this ordinance shall include all lands within Columbia County, including the lands within the corporate limits of the cities and villages of Columbia County.”
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.
Off-grid gear
Going off-grid in Town of Caledonia means bringing your own water and power. The kit we’d start with:
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