DuPage County property record for 409 Saint Marks Ct, Oak Brook, IL 60523
| Property Type | Single Family Home |
|---|---|
| Details | 4,250 sqft · built 1985 |
| Lot Size | 0.51 acres (22,216 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $20,097 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 06-34-201-053 |
| Primary APN | 06-34-201-053 |
|---|
| Stories | 2 Stories |
|---|---|
| Building Area | 4,250 sqft Living Area |
| Gross Area | 6,106 sqft |
| 1st Floor Area | 2,394 sqft |
| 2nd Floor Area | 1,856 sqft |
| Basement Area | 1,856 sqft |
| Year Built | Built 1985 |
|---|---|
| Effective Year Built | Effective 1985 |
| Exterior Material | Brick |
| Construction Type | Brick |
| Lot Area | 22,216 sqft (0.51 acres) |
| Garage Type | Attached |
| Parking Spaces | 3 Parking Spaces |
| Street Address | ST MARKS CT |
|---|---|
| City | OAK BROOK |
| State | IL |
| Zip | 60523 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R |
| Legal Description | TRINITY LAKES UNIT NO 4 ALL |
| Legal Subdivision | TRINITY LAKES UNIT NO 4 |
| Legal Lot Number | 181 |
| Legal Unit | 4 |
| Jurisdiction | DU PAGE IL |
| Township / Civil Division | YORK |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 844502 |
409 Saint Marks Ct is owner-occupied and held in a trust since January 2011.
Source: DuPage County records, as of August 17, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 409 SAINT MARKS CT, OAK BROOK, IL 60523-2555 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 Transfer Date | Jan 30, 2011 |
| Transfer Doc | 0000022029 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 409 Saint Marks Ct was $20,097 with a veteran's exemption.
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 |
| Elementary School District | Butler School District 53 (KG - 08) |
| Secondary School District | Hinsdale Township High School District 86 (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $20,097.00 | $575,232 Land $215,037 Building $360,195 | $1,725,696 Land $645,111 Building $1,080,585 |
| 2022 | $17,335.00 Homeowner's exemption Senior Citizen's exemption | $474,070 Land $177,220 Building $296,850 | $1,422,210 Land $531,660 Building $890,550 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 409 Saint Marks Ct in Zone X, an area of minimal flood risk.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 5 in force |
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.
Wildfire risk around 409 Saint Marks Ct is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 94% 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 | 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 172 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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