Do I Need a Permit to Enclose a Porch in Wisconsin?
Enclosing a porch with windows, screens, or walls requires a building permit and must meet UDC requirements.
Yes, you typically need a permit. Requirements vary by municipality. Check with your local building department for specifics.
Where to Apply
Permit requirements, fees, and processing times vary by municipality. Check the specific requirements for your location:
Browse all jurisdictions →Frequently Asked Questions
Do I need a permit to screen in a porch?
Adding screen enclosures to an existing roofed porch often requires a building permit, especially if you are adding structural framing for the screens.
What about converting a porch to a three-season room?
A three-season room with windows and framing is a structural modification requiring a building permit. If heated, it becomes habitable space with full UDC requirements.
Does an enclosed porch need to meet energy code?
Heated enclosed porches must meet current energy code requirements for insulation and windows. Unheated three-season rooms may have reduced requirements.
Building in multiple cities?
See permit requirements for any Wisconsin municipality instantly. Compare fees, timelines, and processes side by side across your active jurisdictions.