McHenry County property record for 4509 Linden Ave, Algonquin, IL 60102
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.516 acres (22,506 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $152,500 (Apr 1994) |
| Tax Bill | $8,583 (2024) |
| Deeds & Mortgages | May 2022 Line of Credit May 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 19-27-205-023 |
| Primary APN | 19-27-205-023 |
|---|
| Lot Area | 22,506 sqft (0.516 acres) |
|---|
| Street Address | 4509 LINDEN AVE |
|---|---|
| City | ALGONQUIN |
| State | IL |
| Zip | 60102-1604 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | DOC 2023R0010308 LTS 18, 19 & 20 BLK 2 MERRILL, F E & CO ALGONQUIN HILLS UNIT 1 |
| Legal Subdivision | CO ALGONQUIN HILLS |
| Legal Block | 2 |
| Legal Lot Number | 18-20 |
| Legal Unit | 1 |
| Jurisdiction | MCHENRY IL |
| Township / Civil Division | ALGONQUIN |
| Census Block Group | 2 |
| Census Block | 2009 |
| Census Tract | 871311 |
4509 Linden Ave is owner-occupied and held in a trust since April 1994.
Source: McHenry County records, as of March 27, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 4509 LINDEN AVE, ALGONQUIN, IL 60102-1604 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Living Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| May 5, 2022 | Deed of Trust, Mortgage · Line of Credit ALLIANT CREDIT UNION |
| May 5, 2023 | Intrafamily Transfer, Transfer ATTORNEY |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 19, 1994 · Amount on File |
| Deed Sale | Apr 19, 1994 · Amount on File |
| Deed Document Number | 199494R-025520 |
| Prior Transfer Date | Mar 23, 1994 |
| Prior Transfer Doc | 0094025520 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MCHENRY IL |
| Property Address | 4509 LINDEN AVE, ALGONQUIN, IL 60102-1604 |
| Transaction Type | Mortgage |
| Record Updated | Jan 2, 2024 |
| Name | Verified Name |
|---|
| Document Number | 0000016488 |
|---|---|
| Date | May 5, 2022 |
| Instrument | 2022R0016488 |
| Name | ALLIANT CREDIT UNION |
|---|---|
| Type | Credit Union |
| Address | CHICAGO, IL 60666 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 180 Months |
| Due | May 4, 2037 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | MCHENRY IL |
| Recording Date | May 5, 2023 |
| Property Address | 4509 LINDEN AVE, ALGONQUIN, IL 60102-1604 |
| Document Number | 0000010308 |
| Map Reference | DOC73664 MB5 PG57 |
| Instrument Date | Apr 5, 2023 |
| Instrument | 2023R0010308 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Title Company | ATTORNEY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 4509 LINDEN AVE, ALGONQUIN, IL 60102-1604 |
Source: McHenry County assessment roll, as of March 27, 2026
| Type | Name |
|---|---|
| State | Illinois |
| 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 |
|---|---|---|---|
| 2024 | $8,583.00 | $132,988 Land $30,418 Building $102,570 | $398,964 Land $91,254 Building $307,710 |
| 2022 | Homeowner's exemption | $97,810 Land $17,782 Building $80,028 | $293,430 Land $53,346 Building $240,084 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4509 Linden Ave in Zone X, an area of minimal flood risk, though there have been 11 flood claims nearby since 1990.
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 |
| Nearby Flood Policies | 3 in force |
| Nearby Flood Claims | 11 (1990–2020) |
| Claims Outside the SFHA | 7 of 11 |
| Most Recent Claim | May 2020 · rainfall accumulation |
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.
The area around 4509 Linden Ave 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: FCC Broadband Data Collection, based on 206 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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