DuPage County property record for 312 Trinity Ln, Oak Brook, IL 60523
| Property Type | Single Family Home |
|---|---|
| Details | 6,829 sqft · built 1987 |
| Lot Size | 0.52 acres (22,651 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $19,776 (2025) |
| Deeds & Mortgages | Jan 2019 Mortgage Jan 2019 Second Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 06-34-104-018 |
| Primary APN | 06-34-104-018 |
|---|
| Stories | 2 Stories |
|---|---|
| Building Area | 6,829 sqft Living Area |
| Gross Area | 10,309 sqft |
| 1st Floor Area | 4,675 sqft |
| 2nd Floor Area | 2,154 sqft |
| Basement Area | 3,480 sqft |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Exterior Material | Brick |
| Construction Type | Brick |
| Lot Area | 22,651 sqft (0.52 acres) |
| Garage Type | Attached |
| Parking Spaces | 3 Parking Spaces |
| Street Address | 312 TRINITY LN |
|---|---|
| City | OAK BROOK |
| State | IL |
| Zip | 60523-2557 |
| 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 | 191 |
| Legal Unit | 4 |
| Jurisdiction | DU PAGE IL |
| Township / Civil Division | YORK |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 844502 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 312 TRINITY LN, OAK BROOK, IL 60523-2557 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jan 4, 2019 | Deed of Trust, Mortgage · Conventional Mortgage FIRST MIDWEST BANK |
| Jan 11, 2019 | Deed of Trust, Mortgage · Stand-Alone Second Mortgage FIRST MIDWEST BANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DU PAGE IL |
| Property Address | 312 TRINITY LN, OAK BROOK, IL 60523-2557 |
| Transaction Type | Mortgage |
| Record Updated | Dec 14, 2021 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|
| Document Number | 0000000583 |
|---|---|
| Date | Jan 4, 2019 |
| Instrument | R2019-000583 |
| Name | FIRST MIDWEST BANK |
|---|---|
| Type | Bank |
| Address | GURNEE, IL 60031 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jan 1, 2049 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 4.37% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | DU PAGE IL |
| Property Address | 312 TRINITY LN, OAK BROOK, IL 60523-2557 |
| Transaction Type | Mortgage |
| Record Updated | Dec 14, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000002442 |
|---|---|
| Date | Jan 11, 2019 |
| Instrument | R2019-002442 |
| Name | FIRST MIDWEST BANK |
|---|---|
| Type | Bank |
| Address | WESTMONT, IL 60559 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $19,776.00 (-2.84%) | $558,318 (+1.56%) Land $217,894 Building $340,424 | $1,674,954 (+1.56%) Land $653,682 Building $1,021,272 |
| 2022 | $20,355.00 Homeowner's exemption | $549,740 Land $179,580 Building $370,160 | $1,649,220 Land $538,740 Building $1,110,480 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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.
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 | 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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