DuPage County property record for 231 Walnut Ln, Oak Brook, IL 60523
| Property Type | Single Family Home |
|---|---|
| Details | 2,142 sqft · built 1967 |
| Lot Size | 0.62 acres (27,007 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $395,000 (Sep 1998) |
| Tax Bill | $8,341 (2025) |
| Deeds & Mortgages | Oct 2025 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 06-23-206-007 |
| Primary APN | 06-23-206-007 |
|---|
| Stories | 1 Story |
|---|---|
| Building Area | 2,142 sqft Living Area |
| Gross Area | 4,284 sqft |
| 1st Floor Area | 2,142 sqft |
| Basement Area | 2,142 sqft |
| Year Built | Built 1967 |
|---|---|
| Effective Year Built | Effective 1967 |
| Architectural Style | Ranch |
| Exterior Material | Brick |
| Construction Type | Brick |
| Lot Area | 27,007 sqft (0.62 acres) |
| Lot Dimensions | 19.3 ft deep x 14.7 ft wide |
| Garage Type | Attached |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 231 WALNUT LN |
|---|---|
| City | OAK BROOK |
| State | IL |
| Zip | 60523-1450 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R |
| Legal Description | TIMBER TRAIL ESTS TWO |
| Legal Subdivision | TIMBER TRAIL ESTS |
| Legal Lot Number | 135 |
| Jurisdiction | DU PAGE IL |
| Township / Civil Division | YORK |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 844601 |
Source: DuPage County records, as of August 17, 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 | 231 WALNUT LN, OAK BROOK, IL 60523-1450 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 1, 1998 · Amount on Record |
| Deed Sale | Sep 1, 1998 · Amount on Record |
| Prior Sale | Jul 26, 1994 · Amount on Record |
| Deed Document Number | 1998179468 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DU PAGE IL |
| Property Address | 231 WALNUT LN, OAK BROOK, IL 60523-1450 |
| Transaction Type | Mortgage |
| Record Updated | Nov 7, 2025 |
| Title Company | FIRST AMERICAN TITLE, FIRST AMERICAN MORTGAGE SLN |
| Name | Verified Name |
|---|---|
| Address | 231 WALNUT LN, OAK BROOK, IL 60523-1450 |
| Document Number | 0000061698 |
|---|---|
| Date | Oct 1, 2025 |
| Instrument | R2025-061698 |
| Name | CROSSCOUNTRY MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | CLEVELAND, OH 44114 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Oct 1, 2055 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 7.62% |
Source: DuPage County assessment roll, as of August 17, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | DuPage County |
| County Subdivision | York Township |
| Municipality | Oak Brook Village |
| Secondary School District | DuPage High School District 88 (09 - 12) |
| Elementary School District | Salt Creek School District 48 (PK - 08) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $8,341.00 (-6.32%) | $195,318 (-8.92%) Land $158,432 Building $36,886 | $585,954 (-8.92%) Land $475,296 Building $110,658 |
| 2022 | $8,904.00 Homeowner's exemption | $214,450 Land $130,570 Building $83,880 | $643,350 Land $391,710 Building $251,640 |
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 September 1, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 21 individual policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 47 units insured incl. 26 condo units |
| Nearby Flood Claims | 61 (1978–2020) |
| Claims Outside the SFHA | 4 of 61 |
| Most Recent Claim | May 2020 · rainfall accumulation |
| 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 | Direct burnable vegetation |
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 | OAK BROOK serves 9,400 people · EPA ID IL0430700 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jun 2024 |
| Lead | Under 1 ppb (2024–2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 3 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 91 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
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