Regulatory framework
The code baseline for Columbia County.
Columbia County Code Chapter 12: Subchapter 100 Zoning (amended August 20, 2025), Subchapter 200 Land Division and Subdivision, Subchapter 300 Private Sewage Systems, Subchapter 400 Floodplain Zoning, Subchapter 500 Shoreland-Wetland Zoning, and Subchapter 600 Nonmetallic Mining Reclamation. A county zoning permit is not a building permit; the affected town issues building permits and administers applicable Wisconsin Uniform Dwelling Code requirements.