DuPage County property records for 9 addresses on Mallard Ln, Oak Brook, IL · Last verified August 2026
| Properties | 9 |
|---|---|
| Median Sale Price | $1,400,000 |
| Deeds and Mortgages on File | 11 |
| Median Price per Sqft | $211 |
| Owner Occupied | 100% |
| Median Annual Tax Bill | $19,742 |
| Median Year Built | 1983 |
| Median Ownership Tenure | 11 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
8,042 sqft · built 1983 · 1.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,700,000Oct 2025 | $19,7892025 | —Nov 2019 | 1 Name on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
6 bd · 7.5 ba · 8,457 sqft · built 1986 · 1.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,725,000Aug 2015 | $33,8262025 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
5,516 sqft · built 1982 · 1.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,100,000Jan 2002 | $17,5882025 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
4,498 sqft · built 1979 · 1.25 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,400,000Jan 2024 | $11,7582025 | Amount on Record Jun 2021 | 1 Name on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
6,002 sqft · built 1984 · 1.06 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,100,000Jul 2023 | $13,7752025 | —Feb 1996 | 2 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
8,690 sqft · built 2022 · 1.06 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,385,000Dec 2013 | $46,2442025 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
3,716 sqft · built 1980 · 1.06 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,200,000Nov 2000 | $14,8582025 | Amount on Record Oct 1997 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
5 bd · 5 ba · 5,685 sqft · built 1985 · 1.15 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,510,000May 2010 | $20,2422025 | 2 Names on Record Owner Occupied | AssessorUpdated Aug 2026 |
4,708 sqft · built 1982 · 1.33 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,000,000Aug 2022 | $19,7422025 | —Jul 2006 | 1 Name on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |