Cook County property record for 906 S William St, Mount Prospect, IL 60056
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,244 sqft · built 1961 |
| Lot Size | 0.2 acres (8,712 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $290,000 (Aug 2019) |
| Tax Bill | $7,664 (2023) |
| Deeds & Mortgages | Dec 2020 Mortgage Aug 2019 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-13-209-015 |
| Primary APN | 08-13-209-015 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 4 Rooms |
| Building Area | 1,244 sqft Living Area |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Split Level |
| Exterior Material | Brick/Stone |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 8,712 sqft (0.2 acres) |
| Garage Type | Detached |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Water Source | Commercial |
| Street Address | 906 S WILLIAM ST |
|---|---|
| City | MOUNT PROSPECT |
| State | IL |
| Zip | 60056-4352 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Range | 11E |
| Legal Township | 41N |
| Legal Section | 13 |
| Legal Subdivision | CLEARBROOK ESTATES |
| Legal Lot Number | 65 |
| Jurisdiction | COOK IL |
| Township / Civil Division | ELK GROVE |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 804902 |
Source: Cook County records, as of May 27, 2026
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 | 906 S WILLIAM ST, MOUNT PROSPECT, IL 60056-4352 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Dec 7, 2020 | Deed of Trust, Mortgage · Conventional Mortgage MR COOPER |
| Aug 1, 2019 | Warranty Deed, Transfer · FHA Mortgage BANK OF AMERICA |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 1, 2019 · Amount on Record |
| Deed Sale | Aug 1, 2019 · Amount on Record |
| Prior Sale | May 24, 2005 · Amount on Record |
| Deed Document Number | 201922035 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | COOK IL |
| Property Address | 906 S WILLIAM ST, MOUNT PROSPECT, IL 60056-4352 |
| Document Number | 2101301260 |
| Instrument Date | Dec 7, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jan 26, 2021 |
| Title Company | OTHER |
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 906 S WILLIAM ST MOUNT PROSPECT IL 600564352, MOUNT PROSPECT, IL 60056-4352 |
| Document Number | 2101301260 |
|---|---|
| Date | Jan 13, 2021 |
| Instrument | 1301260 |
| Name | MR COOPER |
|---|---|
| Address | COPPELL, TX 75019 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 240 Months |
| Due | Jan 12, 2041 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | COOK IL |
| Recording Date | Aug 1, 2019 |
| Property Address | 906 S WILLIAM ST, MOUNT PROSPECT, IL 60056-4352 |
| Document Number | 1921322035 |
| Instrument Date | Jul 26, 2019 |
| Instrument | 21322035 |
| Transaction Type | Transfer |
| Record Updated | Aug 7, 2019 |
| Title Company | BAIRD AND WARNER TITLE SERVICES INC, BAIRD & WARNER TITLE SVCS INC |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $290.00 |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants by the Entirety |
| Address | 316 GRACELAND AVE DES PLAINES IL 600164409, DES PLAINES, IL 60016-4409 |
| Document Number | 1921322036 |
|---|---|
| Date | Aug 1, 2019 |
| Instrument | 21322036 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jul 31, 2049 |
| Rate | 3.25% |
|---|
Source: Cook County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Cook County |
| County Subdivision | Elk Grove Township |
| Municipality | Mount Prospect Village |
| Secondary School District | Township High School District 214 (09 - 12) |
| Elementary School District | Mount Prospect School District 57 (PK - 08) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $41,000 (+20.59%) Land $10,454 Building $30,546 | $410,000 (+20.59%) Land $104,540 Building $305,460 | |
| 2023 | $7,664.00 (-6.42%) | ||
| 2022 | $8,190.00 | $34,000 Land $8,712 Building $25,288 | $340,000 Land $87,120 Building $252,880 |
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.
Source: FEMA National Flood Hazard Layer, effective February 11, 2026 · 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 | 3 in force |
| Nearby Flood Claims | 16 (1978–2011) |
| Claims Outside the SFHA | 1 of 16 |
| Most Recent Claim | Jul 2011 · 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.
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 | MOUNT PROSPECT serves 41,000 people · EPA ID IL0311980 |
|---|---|
| Water Source | Purchased surface water from NORTHWEST SUBURBAN MUNICIPAL JAWA |
| Last State Inspection | Aug 2025 |
| Lead | 2 ppb (2026–2028) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 11 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 504 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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