Cook County property record for 4 N William St, Mount Prospect, IL 60056 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2.5 Baths |
| Year Built | Built 1957 |
| Square Footage | 2,490 sqft Living Area |
| Lot Size | 11,552 sqft (0.265 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $410,000 (2018) |
| Tax Bill | $10,756.00 (2023) |
| Primary APN | 03-34-426-015 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 2,490 sqft Living Area |
| 1st Floor | 2,490 sqft 1st Floor |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1957 |
| Architectural Style | Ranch Style |
| Exterior Material | Brick/Stone (Brick and/or Stone) Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 11,552 sqft (0.265 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Cooling System | HVAC Cooling |
|---|---|
| Heating System | HVAC Heating |
| Street Address | 4 N WILLIAM ST |
|---|---|
| City | MOUNT PROSPECT |
| State | IL |
| Zip | 60056-2562 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | (PARK)(VIEW)(MANOR) SUB OF E719.50FT W1126.50FT OF SE SE SEC34 EX NH OF E554.25FT OF W1126.50FT OF SE SE SEC 34-42-11 |
| Legal Range | 11E |
| Legal Township | 42N |
| Legal Section | 34 |
| Legal Subdivision | PARK VIEW MANOR |
| Legal Lot Number | 27 |
| Jurisdiction | COOK IL |
| Minor Civil Division | WHEELING |
| Census Blockgroup | 4 |
| Census Block | 4018 |
| Census Tract | 802802 |
Source: Cook County records · APN 03-34-426-015
Assessment roll updated May 27, 2026 · Last verified June 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 File |
|---|---|
| Mailing Address | 4 N WILLIAM ST, MOUNT PROSPECT, IL 60056-2562 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Tenant By Entirety |
| Date | Document |
|---|---|
| Jul 02, 2020 | Deed of Trust, Mortgage · Conventional Mortgage JP MORGAN CHASE BK |
| Aug 10, 2018 | Grant Deed, Transfer · Conventional Mortgage JP MORGAN CHASE BK |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 10, 2018 · Amount on Record |
| Deed Sale | Aug 10, 2018 · Amount on Record |
| Deed Doc Number | 20186163 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | COOK IL |
| Property Address | 4 N WILLIAM ST, MOUNT PROSPECT, IL 60056-2562 |
| Document Number | 2024007513 |
| Instrument Date | Jul 02, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Sep 10, 2020 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Relationship | Husband And Wife |
| Address | 4 N WILLIAM ST MOUNT PROSPECT IL 600562562, MOUNT PROSPECT, IL 60056-2562 |
| Document Number | 2024007513 |
|---|---|
| Date | Aug 27, 2020 |
| Instrument | 24007513 |
| Name | JP MORGAN CHASE BK |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Aug 26, 2050 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | COOK IL |
| Recording Date | Aug 10, 2018 |
| Property Address | 4 N WILLIAM ST, MOUNT PROSPECT, IL 60056-2562 |
| Document Number | 1822206163 |
| Instrument Date | Jul 31, 2018 |
| Instrument | 22206163 |
| Transaction Type | Transfer |
| Record Updated | Jan 15, 2019 |
| Title Company | OTHER |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $410.00 |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenant By Entirety |
| Address | 4 N WILLIAM ST MOUNT PROSPECT IL 600562562, MOUNT PROSPECT, IL 60056-2562 |
| Document Number | 1822206164 |
|---|---|
| Date | Aug 10, 2018 |
| Instrument | 22206164 |
| Name | JP MORGAN CHASE BK |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240-2050 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Aug 09, 2048 |
Source: Cook County records · Assessment roll updated May 27, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Cook County |
| County Subdivision | Wheeling 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) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $51,000 (+21.43%) Land $13,862 Building $37,138 | $510,000 (+21.43%) Land $138,620 Building $371,380 | |
| 2023 | $10,756.00 (+4.3%) | ||
| 2022 | $10,313.00 Homeowner's exemption | $42,000 Land $11,552 Building $30,448 | $420,000 Land $115,520 Building $304,480 |
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