Cook County property record for 539 Dempster St, Mount Prospect, IL 60056
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 10 bd · 6 ba · 5,686 sqft · built 1974 |
| Lot Size | 0.193 acres (8,392 sqft) |
| Owner | Individual Name on File |
| Last Sale | $209,666 (Nov 1993) |
| Tax Bill | $14,284 (2023) |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-23-200-046 |
| Primary APN | 08-23-200-046 |
|---|---|
| Alternative APN |
|
| Bedrooms | 10 Beds |
|---|---|
| Full Baths | 6 Baths |
| Total Rooms | 28 Rooms |
| Units | 24 Units |
| Stories | 2 Stories |
| Building Area | 5,686 sqft Living Area |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1974 |
| Architectural Style | Multi-Family |
| Exterior Material | Brick/Stone |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 8,392 sqft (0.193 acres) |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 539 DEMPSTER ST |
|---|---|
| City | MOUNT PROSPECT |
| State | IL |
| Zip | 60056-5338 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Legal Description | (LINNEMANS) DIVISION OF S 3/4 OF EH OF NE & WH OF NE OF SEC 23-41-11 & S 477.78FT OF WH OF SE SEC 14-41-11 |
| Legal Range | 11E |
| Legal Township | 41N |
| Legal Section | 23 |
| Legal Subdivision | LINNEMANS DIVISION OF S 3/4 OF EH OF N |
| Legal Lot Number | 2 |
| Jurisdiction | COOK IL |
| Township / Civil Division | ELK GROVE |
| Census Block Group | 4 |
| Census Block | 4002 |
| Census Tract | 805111 |
539 Dempster St, a residential property, is owned by an individual who bought it in November 1993.
Source: Cook County records, as of May 27, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 603 S GEORGE ST, MOUNT PROSPECT, IL 60056-3915 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 4, 1993 · Amount on File |
| Deed Sale | Nov 4, 1993 · Amount on File |
| Deed Document Number | 1993938 |
| Prior Transfer Date | Oct 20, 1993 |
| Prior Transfer Doc | 0000000938 |
| Record Updated | Oct 29, 2026 |
Source: Cook County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Cook County |
| County Subdivision | Elk Grove Township |
| Municipality | Mount Prospect Village |
| Secondary School District | Township High School District 214 (09 - 12) |
| Elementary School District | Community Consolidated School District 59 (PK - 08) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $77,000 Land $13,427 Building $63,573 | $770,000 Land $134,270 Building $635,730 | |
| 2023 | $14,284.00 (+4.15%) | ||
| 2022 | $13,715.00 (+5.44%) | $54,821 (+20.42%) Land $13,427 Building $41,394 | $548,210 (+20.42%) Land $134,270 Building $413,940 |
| 2021 | $13,007.00 | $45,523 Land $8,811 Building $36,712 | $455,230 Land $88,110 Building $367,120 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 539 Dempster St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1989.
Source: FEMA National Flood Hazard Layer, effective February 11, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1989) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Aug 1989 · river or lake flooding |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 539 Dempster St has no burnable land within ember reach, so its wildfire risk is not rated.
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 | IL AMERICAN-WAYCINDEN private · serves 1,934 people · EPA ID IL0317550 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | May 2025 |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 176 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, AT&T, Verizon.
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