Cook County property record for 9911 S Prospect Ave, Chicago, IL 60643
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,744 sqft · built 1911 |
| Lot Size | 0.199 acres (8,649 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,814 (2023) |
| Flood Zone | Zone X (minimal risk) |
| APN | 25-08-300-003 |
| Primary APN | 25-08-300-003 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,744 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1911 |
|---|---|
| Effective Year Built | Effective 1913 |
| Architectural Style | Old Style |
| Exterior Material | Wood |
| Construction Type | Frame |
| Roof Material | Tar & Gravel |
| Lot Area | 8,649 sqft (0.199 acres) |
| Garage Type | Detached |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 9911 S PROSPECT AVE |
|---|---|
| City | CHICAGO |
| State | IL |
| Zip | 60643-2111 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RS-1 |
| Legal Description | (HOUGH) & (REEDS) ADD TO (WASHINGTON) HEIGHTS SUB OF LT17 IN BLK4 OF WASHINGTON HTS &OF PT LYG NORTH OF S100ACS, EX ROW OF C. |
| Legal Range | 14E |
| Legal Township | 37N |
| Legal Section | 08 |
| Legal Subdivision | HOUGH & REEDS ADD TO WASHINGTON |
| Legal Block | 4 |
| Legal Lot Number | 17 |
| Jurisdiction | COOK IL |
| Township / Civil Division | CHICAGO |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 720200 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Individually Listed | Ridge Historic District listed 1976 · NRIS 76000703 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
9911 S Prospect Ave is owned and occupied by an individual who acquired it in May 2004.
Source: Cook County records, as of September 9, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9911 S PROSPECT AVE, CHICAGO, IL 60643-2111 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Mar 13, 1996 |
| Deed Sale | Mar 13, 1996 |
| Deed Document Number | 1996357 |
| Last Transfer Date | May 15, 2004 |
| Transfer Doc | 0000005279 |
| Record Updated | Oct 29, 2026 |
Source: Cook County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Cook County |
| Municipality | Chicago City |
| Unified School District | Chicago Public School District 299 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $30,000 Land $10,811 Building $19,189 | $300,000 Land $108,110 Building $191,890 | |
| 2023 | $3,814.00 (+3.61%) | ||
| 2022 | $3,681.00 (+1.38%) Homeowner's exemption Senior Citizen's exemption | $24,000 (-) Land $8,649 Building $15,351 | $240,000 (-) Land $86,490 Building $153,510 |
| 2021 | $3,631.00 Homeowner's exemption Senior Citizen's exemption | $24,000 Land $8,649 Building $15,351 | $240,000 Land $86,490 Building $153,510 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 9911 S Prospect Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2024.
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 |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (2024) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Jul 2024 · 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 9911 S Prospect 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: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CHICAGO serves 2,721,308 people · EPA ID IL0316000 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Mar 2026 |
| Lead | 6 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 8 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 735 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Astound Broadband Cable | 1,500 / 50 |
| Xfinity Cable | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
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