Zoning, building permits and septic rules in Town of Merton, Wisconsin

Town of Merton’s own rules

• Building permitRequired

  Installation of shipping containers on land inside the Town of Merton, Waukesha County, Wisconsin.

  • A building permit must be obtained before installation.
  • For property under the Waukesha County Shoreland Protection Ordinance, the owner must apply to Waukesha County Parks and Land Use for permission and a permit.

  “All shipping containers must obtain a building permit before installation.”

• Local zoningPresent (with conditions)

  Land inside the Town of Merton, Waukesha County, Wisconsin.

  • The cited 2025 text amendment was approved by the Merton Town Board of Supervisors on October 27, 2025.
  • The amendment was subject to Waukesha County approval under Wis. Stat. § 60.62.
  • The cited ordinance states an effective date of October 30, 2025.

  “RZ170 | Merton | Text Amendment-Shipping Containers | 10/01/25 | 10/15/25-Approved | 10/27/25-Approved | 02/26/26-Approved | 03/17/26-Approved | 03/24/26-Adopted”

Rules another office applies inside Town of Merton

Town of Merton does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

• Who permits septicCounty (with conditions)

  Private sewage systems inside the Town of Merton, which is within Waukesha County, Wisconsin.

  • The rule covers private sewage systems installed, repaired, altered, enlarged, extended, replaced, converted, or remediated within Waukesha County.
  • A town may not issue a building permit for a new structure requiring installation of a private sewage system unless the owner has obtained a sanitary permit.
  • A licensed master plumber or master plumber restricted service must sign the sanitary-permit application and assume responsibility for the system.
  • The Town of Merton's new-construction submittal materials require one copy of the Waukesha County Sanitary Permit.

  ““Sanitary Permit” shall mean a permit issued by the Department for any private sewage system that is [...] within the County of Waukesha.”

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.