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309 Trinity Ln, Oak Brook, IL 60523 Property Records

DuPage County property record for 309 Trinity Ln, Oak Brook, IL 60523

Property Summary

Property TypeSingle Family Home
Details3,320 sqft · built 1985
Lot Size0.59 acres (25,700 sqft)
Owner2 Individual Names on File
Last Sale$930,000 (Oct 2015)
Tax Bill$20,120 (2025)
Deeds & MortgagesNov 2021 Mortgage
Nov 2017 Transfer
+ 1 more
Flood ZoneZone X (minimal risk)
APN06-34-105-021

Property Details

APN / Parcel Number

Primary APN06-34-105-021

Interior

Stories2 Stories
Building Area3,320 sqft Living Area
Gross Area4,935 sqft
1st Floor Area1,993 sqft
2nd Floor Area1,327 sqft
Basement Area1,615 sqft

Exterior

Year BuiltBuilt 1985
Effective Year BuiltEffective 1985
Exterior MaterialBrick
Construction TypeBrick
Lot Area25,700 sqft (0.59 acres)
Garage TypeAttached
Parking Spaces3 Parking Spaces

Location & Zoning

Street Address309 TRINITY LN
CityOAK BROOK
StateIL
Zip60523-2564
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR
Legal DescriptionTRINITY LAKES UNIT NO 4 ALL
Legal SubdivisionTRINITY LAKES UNIT NO 4
Legal Lot Number173
Legal Unit4
JurisdictionDU PAGE IL
Township / Civil DivisionYORK
Census Block Group2
Census Block2004
Census Tract844502

Owner

Source: DuPage County assessment roll, 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 Record2 Individual Names on File
Mailing Address309 TRINITY LN, OAK BROOK, IL 60523-2564
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Nov 16, 2021Intrafamily Transfer, Transfer · Conventional Mortgage
FIFTH THIRD BANK NA
Nov 6, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY
Jun 13, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleOct 13, 2015 · Amount on Record
Deed SaleOct 13, 2015 · Amount on Record
Prior SaleDec 1, 1993
Deed Document Number2015113137
Last Transfer DateNov 2, 2021
Transfer Doc0000166607
Record UpdatedSep 20, 2026

November 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionDU PAGE IL
Recording DateNov 16, 2021
Property Address309 TRINITY LN, OAK BROOK, IL 60523-2564
Document Number0000166607
Map ReferenceDOC R80-13385
Instrument DateNov 2, 2021
InstrumentR2021-166607
Transaction TypeTransfer
Record UpdatedJun 7, 2023
Title CompanyACCOMMODATION

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address309 TRINITY LN, OAK BROOK, IL 60523-2564

Mortgage

Document Number0000166608
DateNov 16, 2021
InstrumentR2021-166608
Lender
NameFIFTH THIRD BANK NA
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueDec 1, 2051
Interest
Rate2.99%

November 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionDU PAGE IL
Recording DateNov 6, 2017
Property Address309 TRINITY LN, OAK BROOK, IL 60523-2564
Document Number0000114154
Instrument DateOct 6, 2017
Instrument114154
Transaction TypeTransfer
Record UpdatedNov 30, 2017
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address309 TRINITY LN OAK BROOK IL 605232564, OAK BROOK, IL 60523-2564

June 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionDU PAGE IL
Recording DateJun 13, 2017
Property Address309 TRINITY LN, OAK BROOK, IL 60523-2564
Document Number0000058390
Instrument DateJun 12, 2017
Instrument58390
Transaction TypeTransfer
Record UpdatedJul 11, 2017
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address309 TRINITY LN OAK BROOK IL 605232564, OAK BROOK, IL 60523-2564

Tax Assessment & Valuation

Source: DuPage County assessment roll, as of August 17, 2026

Property Jurisdictions

TypeName
StateIllinois
CountyDuPage County
County SubdivisionYork Township
MunicipalityOak Brook Village
Elementary School DistrictButler School District 53 (KG - 08)
Secondary School DistrictHinsdale Township High School District 86 (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$20,120.00 (+16.33%)$567,884 (+21.34%) Land $248,069 Building $319,815$1,703,652 (+21.34%) Land $744,207 Building $959,445
2022$17,295.00 Homeowner's exemption$468,010 Land $204,440 Building $263,570$1,404,030 Land $613,320 Building $790,710

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective September 1, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 7 (15% premium discount)
Nearby Flood Policies5 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

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskNot rated
no burnable land within ember reach

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemOAK BROOK
serves 9,400 people · EPA ID IL0430700
Water SourcePurchased surface water from several systems
Last State InspectionJun 2024
LeadUnder 1 ppb (2024–2026)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting3
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 172 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Verizon
Fixed Wireless		300 / 20
T-Mobile USA
Fixed Wireless		100 / 20
AT&T
DSL		100 / 20

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