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Screen Porch, 3 or 4 Season Porch,
Attached Garage, Etc.

Please  complete and submit all the the documents listed to obtain a permit for your addition, screen porch, 3 or 4 season porch, or attached garage.

1. Residential Addition Building Permit Application

  • Filled out in its entirety, signed, and dated.

2. Subcontractor List

  • Please include the name, contact details, and license numbers of the subs you are hiring.   Subcontractors must be licensed in Wisconsin.


3. 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.


4. Floor Plans

  • Floor plans can be hand drawn but please include labels with room use, room sizes, door sizes, and window size.

5. Construction plans

  • Provide proper detailing of building dimensions, material types, spans, sizes, spacing.  In lieu of professional blueprints, the Building Cross Section Aid may be submitted.

6. Land Use/Zoning/Conditional Use Permit

  • Pierce County--needed.  Town of River Falls applicants should contact the Town for a Land Use permit. Applicants in Cities or Villages should check with the City or Village.

  • St. Croix County--may be needed.   You need to check with the correct zoning administrator  for your property to see if you need any zoning permits. While we  try to let you know if we think you may need a Land Use permit, we are not the experts on zoning regulations. Therefore, it is up to the applicant to make sure that all zoning regulations are being followed including getting Land Use or Conditional Use permits when needed.  Other zoning regulations could include but are not limited to making sure there are not restrictions on structure use or  structure location due to physical landscape of the lot (i.e. slopes, ponds, rivers, easements, protected areas....) Your building permit only addresses construction codes etc.  Anything relating to the above is outside All Croix's responsibility.   If you are unsure who to contact about zoning,  click here.

7. Copy of a Sanitary Permit or Occupancy Affidavit (St. Croix County) or Per Capita Flow Statement (Pierce County)

     (Not applicable if you have municipal water and sewer.)

  • If you are adding a bedroom, you will also need to provide us with a copy of your sanitary permit showing how many bedrooms your septic is rated for. 

  • If adding a bedroom puts you over your septic rating, you will need to obtain an Occupancy affidavit/Per Capita Flow Statement from the County in which the project is located.

8. CSM (Certified Survey Map) or Plat Map showing setbacks

  • Contact the Register of Deeds (at the County.)  Ask if there is a CSM or a COMPLETE plat map for the property you are building on.   If there is, you must provide a copy of it.  If the property does have plat map associated with it, we need a copy of the COMPLETE plat map--not just a section of it.    If a CSM or plat map is not available for your property, you will need to contact the zoning administrator to see what the property is zoned and what your setbacks are..

9. Site Plan 

  • If you obtained a zoning permit, you can submit that site plan to us with your application. If you do not have a site plan from a zoning permit application, you must create one. The site plan should detail addition placement to the existing structure, any other structure locations, the well location, septic area, drainage easements, property easements, driveway location, utility placement and any other pertinent information.  All distances must be clearly labeled to determine if setbacks are met. This includes distances from the new house to any roads,  lot lines,  well, septic, driveway, easements and any other other structures   You may also show Erosion Control on this site map.  


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Did you know?

RS Means is a division of Reed Business Information that provides cost information to the construction industry so contractors in the industry can provide accurate estimates and projections for their project costs.

There are other free websites that can also help you evaluate the cost of your job.

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