Cook County property record for 1237 N Mason Ave, Chicago, IL 60651
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 4 bd · 2 ba · 2,332 sqft · built 1913 |
| Lot Size | 0.091 acres (3,968 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $2,294 (2023) |
| Flood Zone | Zone X (minimal risk) |
| APN | 16-05-225-007 |
| Primary APN | 16-05-225-007 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 2 Stories |
| Building Area | 2,332 sqft Living Area |
| Year Built | Built 1913 |
|---|---|
| Effective Year Built | Effective 1915 |
| Architectural Style | Multi-Family |
| Exterior Material | Brick/Stone |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 3,968 sqft (0.091 acres) |
| Garage Type | Detached |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Street Address | 1237 N MASON AVE |
|---|---|
| City | CHICAGO |
| State | IL |
| Zip | 60651-1040 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Local Zoning Code | RS-3 |
| Legal Description | (WASSELL) (BRAMBERG) &COS (AUSTIN) (HOME) ADD SUB IN WH WH NE SEC 05-39-13 |
| Legal Range | 13E |
| Legal Township | 39N |
| Legal Section | 05 |
| Legal Subdivision | WASSELL BRAMBERG &COS AUSTIN HOME |
| Legal Block | 4 |
| Legal Lot Number | 34 |
| Jurisdiction | COOK IL |
| Township / Civil Division | CHICAGO |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 250600 |
Source: Cook County records, as of May 27, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 1237 N MASON AVE, CHICAGO, IL 60651-1040 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 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 | $26,000 (+13.04%) Land $4,960 Building $21,040 | $260,000 (+13.04%) Land $49,600 Building $210,400 | |
| 2023 | $2,294.00 (-0.56%) | ||
| 2022 | $2,307.00 Homeowner's exemption Senior Citizen's exemption | $23,000 Land $3,968 Building $19,032 | $230,000 Land $39,680 Building $190,320 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective February 11, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 | 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 1,186 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Verizon.
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