McHenry County property records for 10 addresses on Olson Rd, Union, IL · Last verified July 2026
| Properties | 10 |
|---|---|
| Median Sale Price | $175,000 |
| Deeds and Mortgages on File | 5 |
| Average Living Area | 1,734 sq ft |
| Owner Occupied | 80% |
| Median Year Built | 1994 |
| Median Ownership Tenure | 22 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
38.8 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $100,000Apr 2004 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated May 2024 |
3 ba · 2,370 sqft · 5 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Jan 2026 | $4,7602024 | —Nov 2017 | 1 Name on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
2.33 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Jul 2023 |
10 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated May 2024 |
3.61 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,8772024 | 1 Name on Record | AssessorUpdated Jul 2026 |
10 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 1 Name on Record Owner Occupied | AssessorUpdated Jul 2023 |
2 bd · 1,588 sqft · 7.56 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 3 Names on Record Owner Occupied | Assessor + 1 DocumentUpdated May 2024 |
10.3 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Aug 1996 | —Jun 1996 | 1 Name on Record Owner Occupied | AssessorUpdated May 2024 |
2 bd · 1 ba · 1,626 sqft · 5 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $375,000May 2006 | 2 Names on Record | AssessorUpdated May 2024 |
2 bd · 1,354 sqft · 5 acres · Garage
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $175,000Jun 2000 | 1 Name on Record Owner Occupied | AssessorUpdated May 2024 |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk | Low this street's cells rank at the 4th percentile of exposed land nationally · 22nd in Illinois |
|---|---|
| Wildfire Likelihood | Low — less than 1 in 10,000 per year |
| Exposure | Direct 1 of 9 cells directly exposed · 7 adjoin burnable vegetation |