Naperville
City of Naperville Transportation, Engineering and Development, Building Permits
In short
City of Naperville Transportation, Engineering and Development, Building Permits issues 3 permits we publish for Naperville, last verified 2026-09-04. Each carries the fee as the agency publishes it, with a link to the schedule it was read from.
What this agency issues
| Permit | Issuing agency | Fee | Renews | Last checked |
|---|---|---|---|---|
| Commercial Building Permitonly if it applies to you | City of Naperville Transportation, Engineering and Development, Building Permits | $18 clerical fee plus $49 per plan page for review, plus $68 per inspection ($18 clerical plus $50 inspection). Timed inspections run $18 clerical plus $50 an hour, one hour minimum. | one-time, per project | 2026-09-04 |
| Sign Permitonly if it applies to you | City of Naperville Transportation, Engineering and Development, Building Permits | $42–$92 $92 estimate for a permanent sign, $42 for a temporary one; real permanent-sign permits typically totaled around $160 including inspections | per sign — a temporary sign may be displayed no more than four weeks in a calendar year | 2026-09-04 |
| Business Occupancy Permit | City of Naperville Transportation, Engineering and Development, Building Permits | A commercial occupancy runs an $85 estimate — $17 clerical plus $68 per inspection, one minimum; a restaurant occupancy runs a $152 estimate — $16 clerical plus $68 per inspection, two minimum. Real September 2025 permits typically totaled $153 to $221. | ongoing — retriggered by a change of business name, ownership, or tenant space | 2026-09-04 |
Fees shown as a range or formula are set that way by the issuing agency — we do not average them into a single number.
About each permit
Commercial Building Permit
Real September 2025 permits show how much project size moves this: a $2.1 million build-out totaled nearly $12,000 in fees, while a $32,000 alteration totaled $728 and a $20,000 alteration totaled $252. Related special permits include a fire alarm system at $134, a fire sprinkler system at $134 plus fifty cents per sprinkler head, and a demolition permit at $134, each on the same clerical-plus-inspection structure.
Sign Permit
A separate permit is required for each individual sign at a location. The $92 figure is only the estimate on the published schedule; a real illuminated sign typically added electrical and canopy inspection charges on top, landing near $160 in actual September 2025 transactions.
Business Occupancy Permit
This is Naperville's functional equivalent of a business license — there is no separate general license beyond it. It also serves as the certificate of occupancy for a tenant space: a restaurant's two-inspection minimum (occupancy plus fire occupancy) is what pushes its cost above a typical retail unit's single inspection.
Contact
- Jurisdiction
- Naperville
- Phone
- (630) 420-6100
Contact details are taken from the agency’s own site or its published fee schedule. Where we have not verified a phone number we leave it blank rather than guess.
Sources
Every fee and term above was read from one of these government pages on the date shown.
- City of Naperville — sign permit page, the four-week temporary sign display limitCity of Naperville · primary source · retrieved 2026-09-04
- City of Naperville commercial permit fee schedule, effective February 1, 2019 under Ordinance 18-145City of Naperville · primary source · retrieved 2026-09-04
Other offices serving Naperville
The full permit list for this jurisdiction
Industry permit lists that include this agency
Illinois jurisdictions
Commercial Compliance Hub publishes information, not legal advice. Requirements change — confirm anything you rely on with the issuing agency before you file.