Naperville Building Department | Permits, Inspections & Contact

The City of Naperville issues building permits and performs construction inspections inside its municipal limits. Naperville spans DuPage and Will counties, but the city—not either county—is the primary building-permit authority for work within Naperville. A property outside city limits must be checked with its own municipality or the applicable county authority.

Naperville building permits and EnerGov

Naperville requires the necessary building permits before new construction, additions, remodeling, decks, patios, fences, pools, and many mechanical, plumbing, electrical, driveway, and accessory-structure projects. The City’s Permitting, Plans and Licensing Portal is powered by EnerGov and is used to apply, pay, manage permits, view approved plans, and follow application activity.

The City reviews applications for compliance with building and zoning codes. Complex projects may pass through several departments, and incomplete applications are returned for corrections. Print the issued permit and post it where it is visible from the street; keep an approved stamped plan set on site for inspections.

Inspections and code compliance

Required inspections appear in the portal and can be scheduled online or by calling (630) 420-6100, option 1. Naperville requests that inspections be scheduled at least 72 hours in advance. Inspectors and the Code Enforcement Team enforce building regulations and inspect construction; code complaints can be directed to the city’s code-enforcement service.

For occupancy and tenant build-outs, use the city’s permit-specific guidance to determine whether a temporary occupancy request, tenant build-out permit, fire review, or additional approval is required. Building, fire, accessibility, energy, plumbing, and local amendments can all affect the final approval path.

Official contact information

Naperville lists the Building Permits service at 400 S. Eagle Street, Naperville, Illinois 60540, with a general permitting phone number of (630) 420-6100. Use the official EnerGov portal for applications, permit records, payments, and inspection scheduling.