Allegheny County property record for 521 Thompson Ave, Clairton, PA 15025
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,064 sqft · built 1938 |
| Lot Size | 0.115 acres (5,006 sqft) |
| Owner | Individual Name on File |
| Last Sale | $35,000 (Feb 1997) |
| Tax Bill | $167 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1002-D-59 |
| Primary APN | 1002-D-59 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 2 Stories |
| Building Area | 1,064 sqft Living Area |
| Year Built | Built 1938 |
|---|---|
| Effective Year Built | Effective 1938 |
| Architectural Style | Colonial |
| Exterior Material | Other |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 5,006 sqft (0.115 acres) |
| Garage Type | Detached |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 521 THOMPSON AVE |
|---|---|
| City | CLAIRTON |
| State | PA |
| Zip | 15025-1040 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PA HOUSING CORP PLAN 8 BLK H LOT 58X100X42.11 R R THOMPSON AVE 2 STY ALUM SID & CEM STN 6 RM HSE 521 |
| Legal Subdivision | PA HOUSING CORP PLAN |
| Legal Block | 1002D |
| Legal Lot Number | 59 |
| Jurisdiction | ALLEGHENY PA |
| Township / Civil Division | CLAIRTON |
| Census Block Group | 1 |
| Census Block | 1030 |
| Census Tract | 492900 |
521 Thompson Ave is owned by an individual who bought it in February 1997.
Source: Allegheny County records, as of June 3, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 737 SAINT CLAIR AVE, CLAIRTON, PA 15025-1203 |
| 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 | Feb 28, 1997 · Amount on File |
| Deed Sale | Feb 28, 1997 · Amount on File |
| Deed Document Number | 199722897025241 |
| Deed Book / Page | 9892 / 406 |
| Record Updated | Sep 20, 2026 |
The 2026 property tax bill for 521 Thompson Ave was $167, down 67.6% from the year before.
Source: Allegheny County assessment roll, as of June 3, 2026
| Type | Name |
|---|---|
| State | Pennsylvania |
| County | Allegheny County |
| Municipality | Clairton Municipality |
| Unified School District | Clairton City School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $167.00 (-67.57%) | $26,000 (-) Land $8,000 Building $18,000 | $26,000 Land $8,000 Building $18,000 |
| 2025 | $515.00 | $26,000 Land $8,000 Building $18,000 | |
| 2023 | $425.00 | $26,000 Land $8,000 Building $18,000 | |
| 2012 | $26,000 Land $8,000 Building $18,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 521 Thompson Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 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.
Wildfire risk around 521 Thompson Ave is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 43% of Pennsylvania |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 | PA AMER WATER CO-PITTSBURGH private · serves 686,000 people · EPA ID PA5020039 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2023 |
| Lead | 4 ppb (2025) action level 15 ppb |
| Water Quality | Turbidity resolved · Nov 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 738 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fiber · Fixed Wireless in parts of the area | 980 / 880 |
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