Cook County property record for 9 N William St, Mount Prospect, IL 60056 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1.5 Baths |
| Year Built | Built 1957 |
| Square Footage | 1,474 sqft Living Area |
| Lot Size | 10,640 sqft (0.244 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $390,000 (2019) |
| Tax Bill | $8,221.00 (2023) |
| Primary APN | 03-34-427-004 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 8 Rooms |
| Building Area | 1,474 sqft Living Area |
| 1st Floor | 1,474 sqft 1st Floor |
| Stories | 1 Stories |
| Fireplace | Fireplace |
| Fireplaces | 1 Fireplaces |
| Year Built | Built 1956 |
|---|---|
| Effective Year Built | Effective 1957 |
| Architectural Style | Bungalow Style |
| Exterior Material | Brick/Stone (Brick and/or Stone) Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 10,640 sqft (0.244 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | HVAC Heating |
| Water Source | Commercial Water Source |
| Street Address | 9 N WILLIAM ST |
|---|---|
| City | MOUNT PROSPECT |
| State | IL |
| Zip | 60056-2561 |
| 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 | 37 |
| Jurisdiction | COOK IL |
| Minor Civil Division | WHEELING |
| Census Blockgroup | 4 |
| Census Block | 4019 |
| Census Tract | 802802 |
Source: Cook County records · APN 03-34-427-004
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 | 9 N WILLIAM ST, MOUNT PROSPECT, IL 60056-2561 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Apr 06, 2021 | Deed of Trust, Mortgage · Conventional Mortgage WINTRUST MORTGAGE |
| Nov 19, 2019 | Warranty Deed, Transfer · Conventional Mortgage WINTRUST MTG |
| May 11, 2018 | Quit Claim Deed, Transfer Quitclaim Document |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 201949328 |
| Prior Transfer Date | May 10, 2018 |
| Prior Transfer Doc | 0000055154 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | COOK IL |
| Property Address | 9 N WILLIAM ST, MOUNT PROSPECT, IL 60056-2561 |
| Transaction Type | Mortgage |
| Record Updated | Apr 16, 2021 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|
| Document Number | 0009604055 |
|---|---|
| Date | Apr 06, 2021 |
| Instrument | 2109604055 |
| Name | WINTRUST MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | DES PLAINES, IL 60018 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 359 Months |
| Due | Mar 01, 2051 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 2.87% |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | COOK IL |
| Recording Date | Nov 19, 2019 |
| Property Address | 9 N WILLIAM ST, MOUNT PROSPECT, IL 60056-2561 |
| Document Number | 1932349328 |
| Instrument Date | Nov 08, 2019 |
| Instrument | 32349328 |
| Transaction Type | Transfer |
| Record Updated | Dec 04, 2019 |
| Title Company | PRECISION TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $390.00 |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenant By Entirety |
| Address | 9 N WILLIAM ST MOUNT PROSPECT IL 600562561, MOUNT PROSPECT, IL 60056-2561 |
| Document Number | 1932349329 |
|---|---|
| Date | Nov 19, 2019 |
| Instrument | 32349329 |
| Name | WINTRUST MTG |
|---|---|
| Type | Mortgage Company |
| Address | ROSEMONT, IL 60018 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Nov 18, 2049 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 3.75% |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | COOK IL |
| Recording Date | May 11, 2018 |
| Property Address | 9 N WILLIAM ST, MOUNT PROSPECT, IL 60056-2561 |
| Document Number | 1813155154 |
| Instrument Date | May 10, 2018 |
| Instrument | 13155154 |
| Transaction Type | Transfer |
| Record Updated | May 22, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 9 N WILLIAM ST MOUNT PROSPECT IL 600562561, MOUNT PROSPECT, IL 60056-2561 |
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 | $42,000 (+13.51%) Land $12,768 Building $29,232 | $420,000 (+13.51%) Land $127,680 Building $292,320 | |
| 2023 | $8,221.00 (-8.42%) | ||
| 2022 | $8,977.00 | $37,000 Land $10,640 Building $26,360 | $370,000 Land $106,400 Building $263,600 |
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