Allegheny County property record for 121 Seneca Pl, Mars, PA 16046
| Property Type | Townhouse |
|---|---|
| Details | 2 bd · 3 ba · 2,392 sqft · built 2018 |
| Lot Size | 0.151 acres (6,571 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $430,840 (Nov 2018) |
| Tax Bill | $2,305 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 2372-M-12 |
| Primary APN | 2372-M-12 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 2,392 sqft Living Area |
| Year Built | Built 2018 |
|---|---|
| Effective Year Built | Effective 2018 |
| Architectural Style | Townhouse |
| Exterior Material | Other |
| Construction Type | Frame |
| Roof Material | Other |
| Lot Area | 6,571 sqft (0.151 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 121 SENECA PL |
|---|---|
| City | MARS |
| State | PA |
| Zip | 16046-4003 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Legal Description | VENANGO TRAIL PLAN OF LOTS - 34TH AMENDMENT LOT = 12-R-D2L = 55.51X110.00X63.97X110.00 |
| Legal Subdivision | VENANGO TRAIL PLAN |
| Legal Block | 2372M |
| Legal Lot Number | 12 |
| Jurisdiction | ALLEGHENY PA |
| Township / Civil Division | MARSHALL |
| Census Block Group | 1 |
| Census Block | 1012 |
| Census Tract | 411002 |
121 Seneca Pl, a townhouse, is owned and occupied by two individuals who bought it in November 2018.
Source: Allegheny County records, as of June 3, 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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 121 SENECA PL, MARS, PA 16046-4003 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 20, 2018 · Amount on File |
| Deed Sale | Nov 20, 2018 · Amount on File |
| Prior Sale | Mar 27, 2018 · Amount on File |
| Deed Document Number | 201836043 |
| Deed Book / Page | 17432 / 362 |
| Record Updated | Sep 20, 2026 |
The 2026 property tax bill for 121 Seneca Pl was $2,305 with a homeowner's exemption, down 76.7% from the year before.
Source: Allegheny County assessment roll, as of June 3, 2026
| Type | Name |
|---|---|
| State | Pennsylvania |
| County | Allegheny County |
| County Subdivision | Marshall Township |
| Unified School District | North Allegheny School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $2,305.00 (-76.7%) Homeowner's exemption | $358,600 (-) Land $54,100 Building $304,500 | $376,600 Land $54,100 Building $322,500 |
| 2025 | $9,893.00 Homeowner's exemption | $358,600 Land $54,100 Building $304,500 | |
| 2023 | $9,284.00 Homeowner's exemption | $358,600 Land $54,100 Building $304,500 | |
| 2012 | $376,600 Land $54,100 Building $322,500 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 121 Seneca Pl in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 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 | 4 in force |
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.
Wildfire risk around 121 Seneca Pl is low, with less than 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 98% of the US · lower than 98.3% of Pennsylvania |
|---|---|
| Wildfire Likelihood | Under 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 | WEST VIEW WATER AUTHORITY serves 200,000 people · EPA ID PA5020043 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2024 |
| Lead | Under 1 ppb (2025) action level 15 ppb |
| Water Quality | Treatment failure resolved · Aug 2018 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 2 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 243 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Fiber | 2,000 / 2,000 |
| Fidium Fiber Fiber | 2,000 / 2,000 |
| Armstrong Fiber · Cable in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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