DuPage County property records for 10 addresses on Knoll Valley Dr, Willowbrook, IL · Last verified August 2026
| Properties | 91 |
|---|---|
| Median Sale Price | $165,500 |
| Deeds and Mortgages on File | 50 |
| Median Price per Sqft | $217 |
| Owner Occupied | 65% |
| Median Annual Tax Bill | $2,515 |
| Median Year Built | 1973 |
| Median Ownership Tenure | 14 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
8 units · Built 1973 · 820 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $235,000Oct 2022 | $2,9142025 | $110,5008 units |
12 units · Built 1973 · 690 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $213,000Oct 2024 | $2,4802025 | $115,00012 units |
2 bd · 2 ba · 930 sqft · 31.5 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $77,000Jul 2000 | $2,9142025 | —Jun 1994 | 1 Name on Record Owner Occupied | AssessorUpdated Aug 2026 |
7 units · Built 1973 · 820 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $210,000Apr 2024 | $3,0892025 | $115,5007 units |
12 units · Built 1973 · 690 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $165,500Jun 2023 | $2,5152025 | $142,50012 units |
12 units · Built 1973 · 690 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $172,000Jun 2026 | $2,9762025 | $75,00012 units |
8 units · Built 1973 · 820 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $238,000Feb 2026 | $2,6282025 | $122,5008 units |
10 units · Built 1973 · 690 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $205,000Dec 2025 | $2,9762025 | $121,00010 units |
11 units · Built 1973 · 690 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $118,000Oct 2022 | $2,1582025 | $98,00011 units |
10 units · Built 1973 · 690 sq ft
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $110,000Dec 2020 | $2,1582025 | $110,00010 units |
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 of burnable land |