McHenry County property record for 521 Colonial Ct, Algonquin, IL 60102
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,059 sqft · built 1973 |
| Lot Size | 0.255 acres (11,116 sqft) |
| Owner | Individual Name on Record |
| Deeds & Mortgages | Dec 2021 Transfer Dec 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 19-34-380-010 |
| Primary APN | 19-34-380-010 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Stories | 2 Stories |
| Building Area | 2,059 sqft |
| Gross Area | 3,086 sqft |
| 1st Floor Area | 1,173 sqft |
| 2nd Floor Area | 886 sqft |
| Year Built | Built 1973 |
|---|---|
| Exterior Material | Frame Siding |
| Lot Area | 11,116 sqft (0.255 acres) |
| Heating System | Forced Air |
|---|
| Street Address | 521 COLONIAL CT |
|---|---|
| City | ALGONQUIN |
| State | IL |
| Zip | 60102-2927 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | DOC 629818 LT 19 RATTRAYS VILLAGE GREEN |
| Legal Range | 08E |
| Legal Township | 43N |
| Legal Section | 34 |
| Legal Subdivision | RATTRAYS VILLAGE GREEN |
| Legal Block | 380 |
| Legal Lot Number | 19 |
| Jurisdiction | MCHENRY IL |
| Township / Civil Division | ALGONQUIN |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 871310 |
Source: McHenry County records, as of May 13, 2024
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 521 COLONIAL CT, ALGONQUIN, IL 60102-2927 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 21, 2021 | Transfer on Death Deed, Transfer ATTORNEY ONLY, ATTORNEY |
| Dec 21, 2021 | Transfer on Death Deed, Transfer ATTORNEY ONLY, ATTORNEY |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Jun 7, 2026 |
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | MCHENRY IL |
| Recording Date | Dec 21, 2021 |
| Property Address | 521 COLONIAL CT, ALGONQUIN, IL 60102-2927 |
| Document Number | 0000067487 |
| Map Reference | DOC 543067 |
| Instrument Date | Nov 17, 2021 |
| Instrument | 2021R0067487 |
| Transaction Type | Transfer |
| Record Updated | Dec 30, 2021 |
| Title Company | ATTORNEY ONLY, ATTORNEY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | MCHENRY IL |
| Recording Date | Dec 21, 2021 |
| Property Address | 521 COLONIAL CT, ALGONQUIN, IL 60102-2927 |
| Document Number | 0000067488 |
| Map Reference | DOC 543067 |
| Instrument Date | Nov 17, 2021 |
| Instrument | 2021R0067488 |
| Transaction Type | Transfer |
| Record Updated | Dec 30, 2021 |
| Title Company | ATTORNEY ONLY, ATTORNEY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
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 | $90,025 Land $16,092 Building $73,933 | $270,075 Land $48,276 Building $221,799 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 | 5 in force |
| Nearby Flood Claims | 5 (1978–2017) |
| Claims Outside the SFHA | 2 of 5 |
| Most Recent Claim | Jul 2017 · river or lake flooding |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 86% 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 | 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 362 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 · Fixed Wireless in parts of the area | 100 / 20 |
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