McHenry County property record for 840 Mayfair Ln, Algonquin, IL 60102
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,217 sqft · built 1992 |
| Lot Size | 0.238 acres (10,400 sqft) |
| Owner | Individual Name on File |
| Last Sale | $214,000 (Dec 2015) |
| Deeds & Mortgages | Sep 2023 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 19-32-276-014 |
| Primary APN | 19-32-276-014 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,217 sqft |
| Gross Area | 2,945 sqft |
| 1st Floor Area | 1,013 sqft |
| 2nd Floor Area | 1,204 sqft |
| Year Built | Built 1992 |
|---|---|
| Architectural Style | Tudor |
| Exterior Material | Aluminum/Vinyl |
| Lot Area | 10,400 sqft (0.238 acres) |
| Lot Dimensions | 130 ft deep x 80 ft wide |
| Garage Type | Attached |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air |
| Street Address | 840 MAYFAIR LN |
|---|---|
| City | ALGONQUIN |
| State | IL |
| Zip | 60102-4305 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | DOC 2015R0045874 LT 521 HIGH HILL FARMS UNIT 8 |
| Legal Range | 08E |
| Legal Township | 43N |
| Legal Section | 32 |
| Legal Subdivision | HIGH HILL FARMS 08 |
| Legal Block | 276 |
| Legal Lot Number | 521 |
| Legal Unit | 8 |
| Jurisdiction | MCHENRY IL |
| Township / Civil Division | ALGONQUIN |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 871206 |
840 Mayfair Ln is owned and occupied by an individual who bought it in December 2015.
Source: McHenry County records, as of May 13, 2024
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 840 MAYFAIR LN, ALGONQUIN, IL 60102-4305 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 10, 2015 · Amount on File |
| Deed Sale | Dec 10, 2015 · Amount on File |
| Prior Sale | Apr 20, 2011 · Amount on File |
| Deed Document Number | WARRANTY DEED |
| Record Updated | Jun 7, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MCHENRY IL |
| Property Address | 840 MAYFAIR LN, ALGONQUIN, IL 60102-4305 |
| Transaction Type | Mortgage |
| Record Updated | Oct 2, 2023 |
| Name | Verified Name |
|---|---|
| Address | 840 MAYFAIR LN, ALGONQUIN, IL 60102-4305 |
| Document Number | 0000023484 |
|---|---|
| Date | Sep 19, 2023 |
| Instrument | 2023R0023484 |
| Name | DOVENMUEHLE MORTGAGE INC |
|---|---|
| Type | Mortgage Company |
| Address | DALLAS, TX 75201 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 268 Months |
| Due | Jan 1, 2046 |
Source: McHenry County assessment roll, as of January 1, 2022
| Type | Name |
|---|---|
| State | Illinois |
| Municipality | Algonquin Village |
| County | McHenry County |
| County Subdivision | Algonquin Township |
| Unified School District | Community Unit School District 300 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2022 | Homeowner's exemption | $103,971 Land $21,044 Building $82,927 | $311,913 Land $63,132 Building $248,781 |
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 840 Mayfair Ln in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective February 28, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 840 Mayfair Ln has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | ALGONQUIN serves 30,700 people · EPA ID IL1110050 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2025 |
| Lead | 2 ppb (2026–2028) action level 15 ppb |
| Copper | 1.6 mg/L (2022–2024) action level 1.3 mg/L |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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.
Source: FCC Broadband Data Collection, based on 267 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| i3 Broadband Fiber | 8,000 / 8,000 |
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL | 100 / 20 |
May also be available: Verizon.
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