PermitStack indexes 38,876 building permits issued in Naperville, Illinois, with 14,813 issued in the last 12 months alone. Search by address, contractor, category, and date via our free REST API.
Most common permit types issued in the last year.
Drill into the most common permit categories in Naperville.
The most active contractors by permit volume in Naperville, with a profile of each one's permit history. Counts are permits we hold for Naperville.
Permit activity for individual ZIP codes in Naperville, newest first by volume.
Every permit we hold for one Naperville address (roof, HVAC, solar, additions, with dates and contractors) in a single call to /v1/property/history. Used by lenders for collateral review, insurers for roof and system age, and real estate teams for due diligence.
The 10 most recent permits issued in Naperville, Illinois. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-10-23 | CSDP-0276-2026 | 523 S WEBSTER LN | Other | Howlin at the Moon |
| 2026-10-22 | CSDP-0303-2026 | 440 S BRAINARD ST | Other | 10/22/26 |
| 2026-10-18 | CSDP-0296-2026 | 520 HIGHLAND AV | Other | 10/18/26 |
| 2026-10-18 | CSDP-0297-2026 | 520 HIGHLAND AV | Other | 10/18/26 |
| 2026-10-18 | CSDP-0309-2026 | 400 S EAGLE ST | Other | Loudspeaker system for public safety and event announcements |
| 2026-10-17 | CSDP-0306-2026 | 1836 SHETLAND RD | Other | Noella’s 3rd birthday party block party 10/17/26 |
| 2026-10-17 | CSDP-0305-2026 | 1836 SHETLAND RD | Other | Noella’s 3rd Birthday Party 10/17/26Bounce houses food activities for all ages. |
| 2026-10-16 | CSDP-0044-2026 | — | Other | Naperville Noon Lions Candy Days.Hoping for donations by offering Lions MintsOctob... |
| 2026-10-10 | SEMAJ-0002-2026 | 440 AURORA AV | Other | October 10 NCHS Marching Band |
| 2026-10-09 | CSDP-0301-2026 | 1518 PARKFIELD CT | Other | West Wind Estates Oktoberfest Block Party |
Query Naperville, Illinois permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search Naperville permits issued in the last 30 days curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?jurisdiction=Naperville&state=IL&issued_after=2026-09-23"
The official record sets behind this page, with the date each one's data runs through.
| Record set | Source | Permits | Data through | Note |
|---|---|---|---|---|
| Building permits | open data (ArcGIS) | 38,876 | 2026-10-23 | |
| Building permits | EnerGov permit portal | 25 | 2026-06-16 | Upstream access blocked since 2026-08-18 (66d) — the host refuses our requests (HTTP 403); we cannot confirm whether the source itself has stopped. |
Related coverage in Illinois and nationwide.
We ingest Naperville's official permit records directly from 2 official record sets, each listed under Sources on this page and normalize them into a consistent JSON schema across our U.S. jurisdictions.
The newest permit we hold for Naperville, Illinois is dated October 23, 2026. We re-read this source on a nightly schedule and publish the date the data runs through rather than the date we last polled. Some cities publish permits days after they are filed.
Yes — search Naperville permits free in the browser, no signup needed. The API needs a free key (100 requests per day, no credit card).
Yes. CSV export is available on every plan, including free, with the row cap rising by tier. Webhooks (Developer plan and up) push new permits after each nightly ingest.
The median time from permit filing to issuance in Naperville, Illinois is 4 days, based on permits issued in the last 12 months. Smaller permit types (residential alteration, electrical) typically issue faster; new construction and large additions usually take longer.
Free tier covers 100 requests per day. No credit card required.
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