McHenry County property record for 816 Althoff Dr, McHenry, IL 60051
| Property Type | Single Family Home |
|---|---|
| Details | 1,254 sqft · built 1969 |
| Lot Size | 0.282 acres (12,294 sqft) |
| Owner | Owner Name on File |
| Last Sale | $110,500 (Sep 1998) |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-08-128-011 |
| Primary APN | 10-08-128-011 |
|---|
| Plumbing Fixtures | 5 Plumbing Fixtures |
|---|---|
| Stories | 1 Story |
| Building Area | 1,254 sqft Living Area |
| Gross Area | 2,508 sqft |
| 1st Floor Area | 1,254 sqft |
| Year Built | Built 1969 |
|---|---|
| Architectural Style | A-Frame |
| Exterior Material | Frame/Vinyl |
| Construction Type | Frame |
| Foundation Type | Raised |
| Lot Area | 12,294 sqft |
| Garage Area | 288 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 72 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 816 ALTHOFF DR |
|---|---|
| City | MCHENRY |
| State | IL |
| Zip | 60051-7901 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | DOC 98R00058694 LT 516 PISTAKEE HILLS UNIT 3 |
| Legal Range | 09E |
| Legal Township | 45N |
| Legal Section | 08 |
| Legal Subdivision | PISTAKEE HILLS 03 |
| Legal Block | 128 |
| Legal Lot Number | 516 |
| Legal Unit | 3 |
| Jurisdiction | MCHENRY IL |
| Township / Civil Division | MCHENRY |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 870704 |
The current owner of 816 Althoff Dr bought it in September 1998.
Source: McHenry County records, as of May 13, 2024
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 8707 MAUREEN DR, SPRING GROVE, IL 60081-8784 |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 3, 1998 · Amount on File |
| Deed Sale | Sep 3, 1998 · Amount on File |
| Prior Sale | Dec 22, 1995 · Amount on File |
| Deed Document Number | 98R0058694 |
| Deed Book / Page | 1008 |
| Record Updated | Jun 7, 2026 |
Source: McHenry County assessment roll, as of January 1, 2022
| Type | Name |
|---|---|
| State | Illinois |
| County | McHenry County |
| County Subdivision | McHenry Township |
| Unified School District | Johnsburg Community Unit School District 12 (PK - 12) |
| Year | Assessed Value | Assessed Market Value |
|---|---|---|
| 2022 | $53,689 Land $13,165 Building $40,524 | $161,067 Land $39,495 Building $121,572 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 816 Althoff Dr in Zone X, an area of minimal flood risk, though there have been 16 flood claims nearby since 1979.
Source: FEMA National Flood Hazard Layer, effective February 28, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 16 (1979–2017) |
| Claims Outside the SFHA | 1 of 16 |
| Most Recent Claim | Jul 2017 · river or lake flooding |
| Claims by Event |
|
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 risk around 816 Althoff Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 94% of Illinois |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | IL AMERICAN-WHISPERING HILLS private · serves 8,300 people · EPA ID IL1115700 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2024 |
| Lead | Under 1 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line inventory Oct 2024 |
| Monitoring and Reporting | 59 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 314 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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