Town of Merrimac



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Town Ordinances

In January of 1993, the Town of Merrimac adopted a Development Plan and Zoning Ordinance.  In December 2004, the Town adopted the Smart Growth Development Plan as required under Wisconsin statute, amending the original development plan.


What requires a Building Permit?

Any construction project valued at $500.00 or more requires a permit.  This includes buildings, accessory structures, fences, retaining walls, etc.  The replacement of mechanicals and fixtures do not need a permit.  If you are not certain whether or not you need a permit, it is highly recommended that you call and ask.  Fees triple if construction begins prior to a permit being issued.  CLICK HERE to download a Land Use/Building Permit Application.


General Guidelines

These guidelines are not all inclusive as they relate to the Town Ordinance, however, here are some simple guidelines for new construction:

  • Know your zoning district as these guidelines are for the Single Family Residential District.

  • A new home requires a UDC Permit issued by General Engineering independent of the town's permit.

  • You must observe all highway setbacks from the right-of-way (Town Roads - 30 feet) and all side and rear yard setbacks (10 feet - from the ground up).

  • You must have a living area no less than 1,000 sq. ft. and at least 20 feet wide.  The height of the building cannot exceed 35 ft. above grade.

  • Accessory structures may not exceed 24 ft. by 30 ft. or 14 ft. in height without a Conditional Use permit from the Town Board after recommendation from the Planning & Zoning Commission.

  • All lots must be large enough to accommodate all setbacks, off-street parking, and sanitary requirements.  Sauk County determines minimum lot size based on Shoreland Zoning or sanitation requirements, but the minimum lot size for a new lot is 20,000 sq.ft.

  • UDC Permitting does not exempt property owners from requiring permits in the Town and/or Sauk County.

On-line Land Use/Building Permit with Instructions


County Shoreland Protection Ordinance

Any property located within 1,000 feet of shoreline also requires a Land Use Permit from Sauk County.  Shoreland Zoning requirements are established by the State of Wisconsin and enforced by Sauk County.  Any structure located within 75 feet of the ordinary high water mark will also be reviewed by the Wisconsin Department of Natural Resources.  Sauk County Planning & Zoning can assist you in this area.  Contact Steve Sorenson at (608) 355-3285, Extension 3431.  You still require a permit from the Town of Merrimac, however, a permit will not be issued within Shoreland Zoning until approval from Sauk County has been granted.


Sauk County Private Sewage System Ordinance

Sauk County enforces private sewage systems as required by state law.  Prior to building, replacing, or placing an addition onto a home, you must obtain a permit from Sauk County.  Contact Steve Sorenson at (608) 355-3285, Extension 3431.  The Town of Merrimac will not grant a Building Permit until Sauk County has granted approval.


Town of Merrimac Zoning Map

Town of Merrimac Zoning Map with Sauk County Shoreland Protection overlay.


2011 Zoning Fee Schedule

Zoning Ordinance

Residential District Location


Town of Merrimac

P.O. Box 115

Merrimac, WI  53561

(608) 493-2588