McHenry County property record for 4810 William St, McHenry, IL 60051
| Property Type | Single Family Home |
|---|---|
| Details | 3 ba · 942 sqft · built 1962 |
| Lot Size | 0.28 acres (12,207 sqft) |
| Owner | Owner Name on File |
| Last Sale | $137,000 (Aug 2002) |
| Deeds & Mortgages | Jan 2023 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 10-07-278-005 |
| Primary APN | 10-07-278-005 |
|---|
| Full Baths | 3 Baths |
|---|---|
| Half Baths | 2 Half Baths |
| Plumbing Fixtures | 5 Plumbing Fixtures |
| Stories | 1 Story |
| Building Area | 942 sqft Living Area |
| Gross Area | 1,884 sqft |
| 1st Floor Area | 942 sqft |
| Year Built | Built 1962 |
|---|---|
| Architectural Style | A-Frame |
| Exterior Material | Frame/Vinyl |
| Construction Type | Frame |
| Foundation Type | Raised |
| Lot Area | 12,207 sqft |
| Garage Area | 294 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 120 sqft |
| Deck Area | 158 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 4810 WILLIAM ST |
|---|---|
| City | MCHENRY |
| State | IL |
| Zip | 60051-5721 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | DOC 2002R0068385 LT 372 PISTAKEE HILLS UNIT 3 |
| Legal Range | 09E |
| Legal Township | 45N |
| Legal Section | 07 |
| Legal Subdivision | PISTAKEE HILLS 03 |
| Legal Block | 278 |
| Legal Lot Number | 372 |
| Legal Unit | 3 |
| Jurisdiction | MCHENRY IL |
| Township / Civil Division | MCHENRY |
| Census Block Group | 3 |
| Census Block | 3019 |
| Census Tract | 870704 |
The current owner of 4810 William St bought it in August 2002.
Source: McHenry County records, as of May 13, 2024
| Owner of Record | Owner Name on File |
|---|---|
| Mailing Address | 4810 WILLIAM ST, MCHENRY, IL 60051-5721 |
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 | Aug 6, 2002 · Amount on File |
| Deed Sale | Aug 6, 2002 · Amount on File |
| Prior Sale | May 15, 1995 · Amount on File |
| Deed Document Number | 2002R0068385 |
| Record Updated | Jun 7, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MCHENRY IL |
| Property Address | 4810 WILLIAM ST, MCHENRY, IL 60051-5721 |
| Transaction Type | Mortgage |
| Record Updated | Jan 31, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0000001586 |
|---|---|
| Date | Jan 20, 2023 |
| Instrument | 2023R0001586 |
| Name | COUNTY OF MCHENRY THROUGH ITS PLANNING A |
|---|---|
| Type | Government Agency |
| Address | WOODSTOCK, IL 60098 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
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 | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2022 | Homeowner's exemption | $48,574 Land $14,628 Building $33,946 | $145,722 Land $43,884 Building $101,838 |
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 4810 William St 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 4810 William St 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 214 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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