DuPage County property record for 321 Trinity Ln, Oak Brook, IL 60523 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Year Built | Built 1984 |
| Square Footage | 3,180 sqft Living Area |
| Lot Size | 22,651 sqft (0.52 acres) |
| Garage | Attached |
| Occupancy | Owner Occupied |
| Last Sale | $622,000 (1997) |
| Tax Bill | $17,782.00 (2025) |
| Primary APN | 06-34-105-015 |
|---|
| Building Area | 3,180 sqft Living Area |
|---|---|
| Gross Area | 4,776 sqft Gross Area |
| 1st Floor | 1,596 sqft 1st Floor |
| 2nd Floor | 1,584 sqft 2nd Floor |
| Basement Area | 1,596 sqft Basement |
| Stories | 2 Stories |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1984 |
| Exterior Material | Brick Exterior |
| Construction Type | Brick Construction |
| Lot Area | 22,651 sqft (0.52 acres) |
| Parking Spaces | 3 Parking Spaces |
| Garage Type | Attached Garage |
| Street Address | 321 TRINITY LN |
|---|---|
| City | OAK BROOK |
| State | IL |
| Zip | 60523-2564 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | TRINITY LAKES UNIT NO 4 ALL |
| Legal Subdivision | TRINITY LAKES UNIT NO 4 |
| Legal Lot Number | 167 |
| Legal Unit | 4 |
| Jurisdiction | DU PAGE IL |
| Minor Civil Division | YORK |
| Census Blockgroup | 2 |
| Census Block | 2004 |
| Census Tract | 844502 |
Source: DuPage County records · APN 06-34-105-015
Assessment roll updated August 17, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | 321 TRINITY LN, OAK BROOK, IL 60523-2564 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Feb 19, 2026 | Intrafamily Transfer, Transfer PREMIER TITLE COMPANY, PREMIER TITLE |
| Sep 06, 2018 | Quit Claim Deed, Transfer Quitclaim Document |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Apr 11, 1997 · Amount on Record |
| Deed Sale | Apr 11, 1997 · Amount on Record |
| Deed Doc Number | 199750822 |
| Last Transfer Date | Sep 04, 2018 |
| Transfer Doc | 0000083899 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | DU PAGE IL |
| Recording Date | Feb 19, 2026 |
| Property Address | 321 TRINITY LN, OAK BROOK, IL 60523-2564 |
| Document Number | 0000010895 |
| Map Reference | DOC R80-13385 |
| Instrument Date | Feb 18, 2026 |
| Instrument | R2026-010895 |
| Transaction Type | Transfer |
| Record Updated | Mar 11, 2026 |
| Title Company | PREMIER TITLE COMPANY, PREMIER TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 321 TRINITY LN, OAK BROOK, IL 60523-2564 |
| Name | Verified Name |
|---|---|
| Relationship | Tenant By Entirety |
| Address | 321 TRINITY LN, OAK BROOK, IL 60523-2564 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | DU PAGE IL |
| Recording Date | Sep 06, 2018 |
| Property Address | 321 TRINITY LN, OAK BROOK, IL 60523-2564 |
| Document Number | 0000083899 |
| Instrument Date | Sep 04, 2018 |
| Instrument | 83899 |
| Transaction Type | Transfer |
| Record Updated | Sep 24, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 321 TRMITY LN OAK BROOK IL 60521, OAK BROOK, IL 60521 |
Source: DuPage County records · Assessment roll updated August 17, 2026 · Last verified August 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) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $17,782.00 (+4.25%) | $510,813 (+7.86%) Land $216,939 Building $293,874 | $1,532,439 (+7.86%) Land $650,817 Building $881,622 |
| 2024 | $17,057.00 (+9.8%) Homeowner's exemption Veteran's exemption | $473,589 (+12.5%) Land $201,130 Building $272,459 | $1,420,767 (+12.5%) Land $603,390 Building $817,377 |
| 2022 | $15,535.00 Homeowner's exemption | $420,980 Land $178,790 Building $242,190 | $1,262,940 Land $536,370 Building $726,570 |
321 Trinity Ln is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.
Source: FEMA National Flood Hazard Layer · DuPage County (17043C), updated September 1, 2025
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach of burnable land |
Values are read at the parcel center point; lenders make the official flood determination.
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