Cook County property record for 4100 S Kostner Ave, Chicago, IL 60623
| Property Type | General Industrial |
|---|---|
| Details | 26,530 sqft · built 1990 |
| Lot Size | 26.7 acres (1,164,794 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $207,688 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 16-34-401-006 |
| Primary APN | 16-34-401-006 |
|---|---|
| Alternative APN |
|
| Building Area | 26,530 sqft Gross Area |
|---|
| Year Built | Built 1990 |
|---|---|
| Effective Year Built | Effective 1990 |
| Lot Area | 1,164,794 sqft |
| Street Address | 4100 S KOSTNER AVE |
|---|---|
| City | CHICAGO |
| State | IL |
| Zip | 60623 |
| Property Category | Industrial |
| Property Type | Industrial > General Industrial |
| Local Zoning Code | M3-3 |
| Jurisdiction | COOK IL |
| Township / Civil Division | CHICAGO |
| Census Block Group | 1 |
| Census Block | 1025 |
| Census Tract | 830500 |
Source: Cook County records, as of August 25, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 3 LINCOLN CTR, 4, OAKBROOK TERRACE, IL 60181-4204 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Cook County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Cook County |
| Municipality | Chicago City |
| Unified School District | Chicago Public School District 299 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,033,750 (-1.81%) Land $1,027,904 Building $5,846 | $4,135,000 (-1.81%) Land $4,111,616 Building $23,384 | |
| 2024 | $207,688.00 (-6.5%) | ||
| 2023 | $222,127.00 (+2.58%) | ||
| 2022 | $216,538.00 | $1,052,783 Land $727,977 Building $324,806 | $4,211,132 Land $2,911,908 Building $1,299,224 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective February 11, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CHICAGO serves 2,721,308 people · EPA ID IL0316000 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Mar 2026 |
| Lead | 6 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 8 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 11 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| AT&T Fixed Wireless · Fiber in parts of the area | 100 / 20 |
May also be available: Verizon, Xfinity.
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