Cook County property record for 20232 Keystone Ave, Matteson, IL 60443
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,482 sqft · built 1963 |
| Lot Size | 0.494 acres (21,500 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $52,500 (Jan 2015) |
| Tax Bill | $7,709 (2023) |
| Flood Zone | Zone AE (high risk) |
| APN | 31-15-205-005 |
| Primary APN | 31-15-205-005 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,482 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Architectural Style | Multi-Level |
| Exterior Material | Brick/Stone |
| Construction Type | Frame |
| Foundation Type | Raised |
| Roof Material | Asphalt |
| Lot Area | 21,500 sqft (0.494 acres) |
| Garage Type | Detached |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Water Source | Commercial |
| Street Address | 20232 KEYSTONE AVE |
|---|---|
| City | MATTESON |
| State | IL |
| Zip | 60443-1230 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | ARTHUR (MCINTOSH) & COS (CRAWFORD) COUNTRYSIDE (UNIT1 ) OF PT NE SEC 15-35-13 |
| Legal Range | 13E |
| Legal Township | 35N |
| Legal Section | 15 |
| Legal Subdivision | MCINTOSH & COS CRAWFORD |
| Legal Block | 4 |
| Legal Lot Number | 5 |
| Legal Unit | 1 |
| Jurisdiction | COOK IL |
| Township / Civil Division | RICH |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 830004 |
Source: Cook County records, as of May 27, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 20232 KEYSTONE AVE, MATTESON, IL 60443-1230 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 21, 2015 · Amount on Record |
| Deed Sale | Jan 21, 2015 · Amount on Record |
| Prior Sale | Feb 1, 2007 · Amount on Record |
| Deed Document Number | 201517040 |
| Last Transfer Date | Apr 1, 2016 |
| Transfer Doc | 0000047271 |
| Record Updated | Oct 29, 2026 |
Source: Cook County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Cook County |
| County Subdivision | Rich Township |
| Elementary School District | Matteson Elementary School District 162 (PK - 08) |
| Secondary School District | Rich Township High School District 227 (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $23,001 (+29.23%) Land $2,688 Building $20,313 | $230,010 (+29.23%) Land $26,880 Building $203,130 | |
| 2023 | $7,709.00 (+4.93%) | ||
| 2022 | $7,347.00 Homeowner's exemption | $17,798 Land $4,837 Building $12,961 | $177,980 Land $48,370 Building $129,610 |
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.
Source: FEMA National Flood Hazard Layer, effective February 11, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | Yes |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 9 (1980–2019) |
| Claims Outside the SFHA | 4 of 9 |
| Most Recent Claim | Sep 2019 · river or lake flooding |
| Claims by Event |
|
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.
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 | MATTESON serves 18,293 people · EPA ID IL0311800 |
|---|---|
| Water Source | Purchased surface water from OAK LAWN |
| Last State Inspection | Jan 2025 |
| Lead | 9 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 128 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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