Dunn County, Wisconsin
Town of Peru is a town in Dunn County, Wisconsin. Septic permits inside Town of Peru come from Dunn County (Dunn County Planning & Land Use — Sanitation · 715-231-6520). 10 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Dunn County page.
Town of Peru does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Dunn County Chapter 13 zoning districts that apply inside Peru town (Peru town is listed among towns under county zoning and is not among the six towns excluded from Chapter 13). This is a county rule applying inside Peru town, not a Peru town ordinance.
“Dunn County's Chapter 13 Comprehensive Zoning ordinance applies to all towns and unincorporated areas, except the towns of Eau Galle, Elk Mound, New Haven, Rock Creek, Sand Creek, and Springbrook.”
“13.2.3.01 Purpose: To identify those areas where predominately single family residential development has occurred or will likely occur.”
Minimum lot size for land inside Peru town under the Dunn County Chapter 13 zoning district that applies
“Minimum lot size shall be that specified by the zoning district that applies.”
Highway and front yard setbacks for land inside Peru town under Dunn County Chapter 13
“Highway/Front Yard: The minimum highway and front yard setbacks shall be regulated under Section 13.3.2.”
Mobile recreational vehicles on land inside Peru town under Dunn County Chapter 13
“A mobile recreational vehicle shall not be used as a permanent principal residence”
Single-family dwellings in the R1 district on land inside Peru town under Dunn County Chapter 13
“Single family dwelling, excluding mobile homes constructed before June 15, 1976, as defined in Wis. Stats.§ 101.91 (10)”
Accessory structures on land inside Peru town under Dunn County Chapter 13 (R1 district language)
“Permits must be issued for a permitted principal structure (13.2.3.03) before permits will be issued for accessory structures. Accessory structures shall not be designed or used in part or whole for human habitation or any unauthorized accessory use unless properly permitted.”
Dunn County sanitary ordinance for private on-site wastewater systems on land inside Peru town
“Dunn County's Shoreland, Floodplain, Land Division, and Sanitary ordinances apply to all Towns in Dunn County.”
Dunn County land division ordinance as it applies to land inside Peru town
“Dunn County's Shoreland, Floodplain, Land Division, and Sanitary ordinances apply to all Towns in Dunn County.”
Dunn County zoning permits for uses listed as permitted uses in a zoning district, where Chapter 13 applies inside Peru town
“Zoning Permits are required for uses that are listed as "Permitted Uses" within a zoning district.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Peru or Dunn 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 Peru publishes no rule on the point, not that none exists. Dunn County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Peru means bringing your own water and power. The kit we’d start with:
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.