Town of Sumner

Jefferson County, Wisconsin

Last verified September 17, 2026

Town of Sumner is a jurisdiction in Jefferson County, Wisconsin, with an online portal for searching and pulling active or historical building permits. Use the contact information below to reach the local building department, or the mailing address if the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.

Certificate Holder Mailing Address

Town Clerk
Dave Geraths, Permit Reviewer (General Engineering Company)
N1525 Church Street
Edgerton, WI 53534

Use this address when the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.

Additional Notes

One of TWO unrelated Towns of Sumner in Wisconsin (the other in Barron County) — verified independently via the sumner-jc-wi.gov domain ('jc' = Jefferson County) and its Edgerton, WI address, confirming Jefferson County; this is also distinct from the Village of Sullivan and Town of Sullivan, both also in Jefferson County. Building permit applications are submitted via the GEC portal and reviewed by Dave Geraths of General Engineering Company (dgeraths@generalengineering.net), with the Town Clerk copied.

What You Need Before Applying for a Permit

Most building departments ask for the same core package before they'll issue a permit: a completed application naming the property owner and contractor, the contractor's state license number and proof of insurance (general liability, and workers' comp if employees are on the job), a notice of commencement or equivalent recorded filing for larger jobs where the state requires one, and scaled plans or a site plan for anything beyond minor repairs. Roofing, fence, pool, and solar permits typically have their own simplified checklists — Town of Sumner's department (above) can confirm exactly what applies to your project.

Why this matters for insurance: permit history is one of the first things an underwriter or adjuster checks. Unpermitted work — a finished basement, an added bedroom, a rebuilt roof — can complicate a claim or even void coverage for that portion of the loss, and it routinely surfaces during a home inspection. Pulling the right permit up front, and keeping the closed-permit record on file, protects both the property's value and its insurability at resale.

See something out of date? Submit a correction →