DuPage County property records for 10 addresses on Testa Dr, Naperville, IL · Last verified August 2026
| Properties | 10 |
|---|---|
| Median Sale Price | $10,350,000 |
| Deeds and Mortgages on File | 20 |
| Median Price per Sqft | $767 |
| Median Annual Tax Bill | $34,838 |
| Median Year Built | 1985 |
| Median Ownership Tenure | 10 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
12,480 sqft · built 1985 · 0.81 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $937,500Aug 2011 | $34,8372025 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.719 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,350,000Apr 2016 | $34,8382025 | Amount on Record Aug 2011 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.76 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,350,000Apr 2016 | $34,8382025 | Amount on Record Aug 2011 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.719 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,340,000May 2016 | $34,8382025 | —Dec 2009 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.719 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,350,000Apr 2016 | $34,8382025 | Amount on Record Aug 2011 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.75 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,350,000Apr 2016 | $34,8382025 | Amount on Record Aug 2011 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.719 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,350,000Apr 2016 | $34,8382025 | Amount on Record Aug 2011 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.75 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,350,000Apr 2016 | $34,8382025 | Amount on Record Aug 2011 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.76 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $526,000May 2018 | $34,8382025 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |
13,492 sqft · built 1985 · 0.869 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $10,350,000Apr 2016 | $34,8382025 | Amount on Record Aug 2011 | Owner on Record | Assessor + 2 DocumentsUpdated Aug 2026 |