Does your "deck" have a roof?

   Then it is NOT a deck, and this is not the information you need.

Please see the Addition/Porch/Attached Garage page.

Did You Know?

Any deck, whether connected to a structure or free-standing, that serves as an exit must meet the standards of the WI Uniform Dwelling Code SPS 321.255 (1). 

Chapters SPS 320 to 325 


Appendix B

The following documents create a deck application. Please use in conjunction with the Deck Application Required Document Checklist at the bottom of the page.


1. Residential Addition Building Permit Application

Filled out in its entirety, signed, and dated.

2. Cautionary Statement 

We must have this for homeowners doing their own work or hiring a contractor that does not have a valid Dwelling Contractor Qualifier License in the State of WI.

3. Land Use Permit From the County

Please Note: A Land Use permit is NOT the same as a building permit.

If you are in Pierce County (with the exception of the Town of River Falls, the River Falls ETZ, the Village of Elmwood, the Village of Spring Valley, the Village of Ellsworth, or the Village of Ellsworth ETZ you will get your Land Use permit from Pierce County Land Use and Zoning. If you are in the Village of Ellsworth or Village of Ellsworth ETZ, your zoning will be looked at with this permit application.


If you are building in St. Croix County (with the exception of the Village of Baldwin, the Village of Spring Valley,  the Village of Wilson , and the Town of St. Joseph)  we will need a copy of your issued Land Use Permit or documentation that one is not required.    The documentation can be a copy of an email.

If you are in the Town of St. Joseph, you will need an Interim Zoning Exemption Form.  Please see the St. Joseph website for more information on obtaining the waiver. 

4.​ Site Plan

Please fill out completely notating the actual distance from the structure to lot lines.  You may use a copy of satellite map or plat map or CSM as long as the structure is clearly marked and identified with the setback distances labeled.

5. CSM or Plat Map 

If you do not have a land use permit from Pierce County, then a CSM or Plat map or other official document clearly indicating setbacks is required.  This will most like require a copy of the legend if you are getting just a portion of a map.  We will accept a copy of an email from St. Croix County Land Development if no other viable options are available that clearly indicates setbacks.)    If you are building your deck in a City or Village, you will not need a CSM.

6. Deck Plans 

These can be hand drawn but should include a side view and a top view of the deck including dimensions, beams, joists, construction materials etc. 


7. Design Load Specifications Must Include one of the 2 options below

Option 1:  Design load calculated and stamped by a registered engineer. (PLEASE NOTE:  We can not accept deck plans alone from your local home improvement store unless they are accompanied by the worksheet or engineered calculations.  These stores do not provide engineered calculations.)  

Option 2: The WORKSHEET at the end of Appendix B  SPS 325 filled out and showing compliance with the standards in Chapters SPS 320 to 325 APPENDIX B and Appendix C, if applicable.  (PLEASE NOTE: These standards do not account for privacy screens, planters, built−in seating, hot tubs, stairs for multiple− level decks, etc. Engineering analysis is needed for decks with these designs.


8Printable Deck Application Required Document Checklist

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