421 William St, Monongahela, PA 15063 Property Records

Washington County property record for 421 William St, Monongahela, PA 15063

Property Summary

Property TypeSingle Family Home
Details1 bd · 1 ba · 546 sqft · built 1940
Lot Size0.037 acres (1,612 sqft)
Owner2 Individual Names on Record
Tax Bill$1,147 (2026)
Flood ZoneZone X (minimal risk)
APN440-018-00-04-0002-00

Property Details

APN / Parcel Number

Primary APN440-018-00-04-0002-00

Interior

Bedrooms1 Bed
Full Baths1 Bath
Total Rooms3 Rooms
Stories1 Story
Building Area546 sqft Living Area

Exterior

Year BuiltBuilt 1940
Effective Year BuiltEffective 1940
Exterior MaterialAluminum/Vinyl
Lot Area1,612 sqft (0.037 acres)
Lot Dimensions40 ft deep x 40 ft wide
Garage TypeBasement
Garage Area300 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address421 WILLIAM ST
CityMONONGAHELA
StatePA
Zip15063-2143
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionPT LOT 11 HSE 1 1/2 STY
Legal Lot Number11
JurisdictionWASHINGTON PA
Township / Civil DivisionMONONGAHELA
Census Block Group1
Census Block1061
Census Tract773200

Owner

Source: Washington County records, as of May 27, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on Record
Mailing Address210 DIANE DR, MONONGAHELA, PA 15063-1117
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Record UpdatedSep 20, 2026

Tax Assessment & Valuation

Source: Washington County assessment roll, as of February 2, 2026

Property Jurisdictions

TypeName
StatePennsylvania
CountyWashington County
MunicipalityMonongahela City
Unified School DistrictRinggold School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$1,147.00 (+4.84%)$36,900 (-) Land $17,000 Building $19,900$36,900 (-) Land $17,000 Building $19,900
2025$1,094.00 (+20.62%)$36,900 (-) Land $17,000 Building $19,900
2023$907.00$36,900 Land $17,000 Building $19,900
2015$36,900 Land $17,000 Building $19,900

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective June 1, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Claims4 (1996–2000)
Most Recent ClaimFeb 2000 · river or lake flooding
Claims by Event
  • Severe Storms And Flooding, Jan 1996 · 3 claims

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

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 80% of the US · above 43% of Pennsylvania
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemPA AMER WATER CO-PITTSBURGH
private · serves 686,000 people · EPA ID PA5020039
Water SourceSurface water
Last State InspectionAug 2023
Lead4 ppb (2025)
action level 15 ppb

Violations Reported to EPA

Water QualityTurbidity
resolved · Nov 2017
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 493 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Verizon
Fixed Wireless
300 / 20
AT&T
Fixed Wireless
100 / 20

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