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Illinois

Building Permits in Naperville, Illinois

PermitStack indexes 35,597 building permits issued in Naperville, Illinois, with 14,296 issued in the last 12 months alone. Search by address, contractor, category, and date via our free REST API.

35,597
Total permits
14,296
Last 12 months
1,399
Last 30 days
+18%
vs same period prior year
Aug 7, 2026
Latest permit

Permits by category (last 12 months)

Most common permit types issued in the last year.

Interior remodel
1,058
Fence
908
Renovation
802
Fire alarm
656
New construction
566
Electrical
561
Signage
529
Plumbing
311
Addition
266
Solar
241

Permit data by trade in Naperville

Drill into the most common permit categories in Naperville.

Top contractors in Naperville

Most active contractors by permit volume in Naperville.

Most recent permits

The 10 most recent permits issued in Naperville, Illinois. Full dataset available via REST API.

IssuedPermit #AddressCategoryDescription
2026-08-07CSDP-0160-20261022 THUNDERBIRD LNOtherPrivate backyard eventFriday August 7 20266:00pm - 10:00pm
2026-08-04CSDP-0194-20262604 SHEEHAN CT 101OtherNational Night Out 8/4/26
2026-08-04CSDP-0187-20261233 ATLAS LNOtherWe would like to block off atlas lane from tupelo to tamarack for National neighbo...
2026-08-03TRUCK-0377-2026Otherdeliver street plate75 St west Washington north Hillside east Willow south Golden ...
2026-08-03TRUCK-0375-2026OtherROUTE 53 NORTH -75TH ST WEST -WASHINGTON ST SOUTH - BUNTING LN WEST - CLYDE NORTH.
2026-08-02CSDP-0208-20261112 MALLORY CTOtherCul de sac party
2026-08-02RMIS-0757-20264124 ALFALFA LNOther16 ft by 15 ft composite deck
2026-08-02MISC-1095-20261216 HAVERHILL CRFenceFence replacement - Finish Height of 6; Nail Up finished side facing outwards Si...
2026-08-02RMIS-0758-20264124 ALFALFA LNOtherSide yard walk extending from third car garage driveway up to the backyard made up...
2026-08-02RESD-0798-20261345 WINCHESTER CTPlumbingBURY SUMP PUMP DISCHARGE TO STORM SEWER

Access Naperville permit data via API

Query Naperville, Illinois permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.

# Search all Naperville permits issued this month
curl -H "X-API-Key: YOUR_KEY" \
  "https://api.permit-stack.com/v1/permits/search?city=Naperville&state=IL&issued_after=2026-04-01"

Other cities we cover

Related coverage in Illinois and nationwide.

FAQ

Where does PermitStack get Naperville permit data?

We ingest data directly from the official Naperville open data portal (ArcGIS Hub) daily. This is the same source used by the city's own public dashboards, normalized into a consistent JSON schema across our U.S. jurisdictions.

How current is the Naperville data?

Our automated ingestion runs daily at 03:00 UTC. The latest permit in our database for Naperville, Illinois was issued on August 7, 2026. Permit backlogs on the city side may mean some permits take a few days to appear.

Can I access Naperville permits without an API key?

Yes — our free tier includes 100 requests per day, enough to search and filter Naperville permits interactively. Sign up for a free API key to get started.

Can I export Naperville permit data?

Yes. CSV export is available on every plan, including free, with the row cap rising by tier. Real-time webhooks for changed permits are on the Developer plan and above.

How long does a Naperville building permit take to issue?

The median time from permit filing to issuance in Naperville, Illinois is 11 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.

Get Naperville permit data in your app today

Free tier covers 100 requests per day. No credit card required.

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