Naperville Deck, Patio, Shed, and Exterior Improvement Permit Guide

Naperville requires permits for elevated decks, structural deck repairs, many patios, athletic courts, sheds, coops, and other exterior residential improvements.

Permit takeaway

Naperville requires an issued building permit before constructing elevated deck structures, replacing structural or safety items on existing decks, adding decks or open porches, and installing other secondary structures and improvements.

Zoning and placement

Patios and athletic courts must follow setback and easement restrictions, and sheds or coops should be checked for placement, lot coverage, and use conditions.

Building and trade review

Patios require permits when the total paved area will exceed 500 square feet, when the design includes permanent fire, grill, gas, plumbing, or electrical fixtures, or when the surface is more than 30 inches above adjacent ground.

Call before applying when

Call before applying if the deck is elevated, deck structure or rails are being replaced, the patio exceeds 500 square feet, utilities are included, or a shed, coop, arbor, gazebo, trellis, pergola, or pavilion is part of the work.

Documents to prepare

• Civic Access application
• Site plan or plat
• Deck or patio dimensions
• Structural details if required
• Electrical, plumbing, or gas details if included

Inspection planning

• Apply through Civic Access
• Confirm setbacks and easements
• Schedule deck or exterior improvement inspections
• Keep approved documents onsite

Official sources

• Naperville Deck Patio and Shed Permit
• Naperville Building Permits

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