Madison Deck Permit Guide

Madison requires permits for decks and publishes requirements for zoning, footings, guardrails, site plans, plans, and inspections.

Permit takeaway

Madison says you need a permit to build a deck.

Zoning and placement

Decks less than three feet above ground can often extend close to lot lines, while decks three or more feet above ground must meet zoning setbacks.

Building and trade review

Deck footings must be at least 48 inches deep, and guardrails are required for decks more than two feet above ground.

Call before applying when

Call before applying if the deck is three feet or higher, lakefront, near setbacks, replacing structural components, or requires special zoning review.

Documents to prepare

• Deck application
• Site plan when required
• Construction drawings
• Deck size, post, beam, joist, stair, and guard details

Inspection planning

• Footing inspection before concrete
• Corrections and reinspection if needed
• Final inspection after completion

Official sources

• Madison Decks
• Madison Additions

This guide is a planning summary. Always verify the current requirements with the local office before starting work.