Cook County property record for 20100 Keystone Ave, Matteson, IL 60443
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,128 sqft · built 1951 |
| Lot Size | 0.551 acres (24,000 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $181,000 (Sep 2025) |
| Tax Bill | $2,300 (2023) |
| Deeds & Mortgages | Sep 2025 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 31-15-202-029 |
| Primary APN | 31-15-202-029 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,128 sqft Living Area |
| 1st Floor Area | 1,128 sqft |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1951 |
| Architectural Style | Bungalow |
| Exterior Material | Wood |
| Construction Type | Frame |
| Foundation Type | No Foundation |
| Roof Material | Asphalt |
| Lot Area | 24,000 sqft (0.551 acres) |
| Garage Type | Attached |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Street Address | 20100 KEYSTONE AVE |
|---|---|
| City | MATTESON |
| State | IL |
| Zip | 60443-1228 |
| 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 | 3 |
| Legal Lot Number | 29 |
| Legal Unit | 1 |
| Jurisdiction | COOK IL |
| Township / Civil Division | RICH |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 830004 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3305 HIGHLAND AVE, BERWYN, IL 60402-3815 |
| Owner Type | Individual |
| Vesting | Tenants by the Entirety |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 18, 2025 · Amount on Record |
| Deed Sale | Sep 18, 2025 · Amount on Record |
| Deed Document Number | 202530068 |
| Record Updated | Oct 29, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | COOK IL |
| Recording Date | Sep 18, 2025 |
| Property Address | 20100 KEYSTONE AVE, MATTESON, IL 60443-1228 |
| Document Number | 0026130068 |
| Instrument Date | Aug 27, 2025 |
| Instrument | 2526130068 |
| Transaction Type | Transfer |
| Record Updated | Oct 7, 2025 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $181.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 20100 KEYSTONE AVE, MATTESON, IL 60443-1228 |
| Document Number | 0026130069 |
|---|---|
| Date | Sep 18, 2025 |
| Instrument | 2526130069 |
| Name | ILOAN LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2055 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 7.25% |
| Document Number | 0026130070 |
|---|---|
| Date | Sep 18, 2025 |
| Instrument | 2526130070 |
| Name | ILOAN LLC |
|---|---|
| Type | Mortgage Company |
| Address | CHICAGO, IL 60622 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2055 |
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 | $12,000 (-) Land $3,000 Building $9,000 | $120,000 (-) Land $30,000 Building $90,000 | |
| 2023 | $2,300.00 (+42.15%) Homeowner's exemption Senior Citizen's exemption | $12,000 (+27.75%) Land $3,000 Building $9,000 | $120,000 (+27.75%) Land $30,000 Building $90,000 |
| 2022 | $1,618.00 Homeowner's exemption Senior Citizen's exemption | $9,393 Land $4,800 Building $4,593 | $93,930 Land $48,000 Building $45,930 |
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 X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| 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 | Low lower than 98% of the US · lower than 86% of Illinois |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond 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 | OLYMPIA FIELDS serves 4,922 people · EPA ID IL0312280 |
|---|---|
| Water Source | Purchased surface water from OAK LAWN |
| Last State Inspection | Aug 2024 |
| Lead | 4 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 5 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. The service area is an EPA estimate; the actual supplier may differ.
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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