Sun Prairie deck permit
Sun Prairie asks for a building permit application, a drawing that follows one of three accepted construction methods, and a site plan. Decks up to 3 feet high may come within 8 feet of the rear property line; taller decks must stay 24 feet back. A roof over the deck means larger setbacks, and a pergola needs a permit only if it is attached to a building.
Sources: City of Sun Prairie Building Inspection, Decks, Gazebos & Pergolas · Wisconsin Uniform Dwelling Code, SPS 325 Appendix B. Checked November 9, 2026. Confirm current requirements with your building inspector.
Deck Repair in Sun Prairie
Madison draws a clear line here. Deck boards can be replaced without a permit if the cost is under $500. Replacing stairs, joists, beams, columns or guardrails needs a permit or a check with Building Inspection staff. Madison also lets owners apply online for a repair permit to replace surface boards, handrails or guardrails.
Describe what is loose or soft and send photos; do not test a deck that feels unsafe.
Sources: Wisconsin Uniform Dwelling Code, SPS 325 Appendix B. Checked November 9, 2026. Confirm current requirements with your building inspector.
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FAQ
Is a permit needed for deck repair in Sun Prairie?
Sun Prairie asks for a building permit application, a drawing that follows one of three accepted construction methods, and a site plan. Decks up to 3 feet high may come within 8 feet of the rear property line; taller decks must stay 24 feet back. A roof over the deck means larger setbacks, and a pergola needs a permit only if it is attached to a building.
What is a typical price?
Angi lists typical deck repair at $800 to $3,500 nationally. That is a published estimate, not a quote.
Who does the work?
An independent builder you hire directly. This is a Madison-area referral site, so we pass your request along; we do not build, price or guarantee anything.