William St, Mount Oliver, PA Property Records

Allegheny County property records for 11 addresses on William St, Mount Oliver, PA · Last verified August 2026

William St Highlights

Properties 11
Median Sale Price $29,000
Deeds and Mortgages on File 9
Median Price per Sqft $30
Owner Occupied 27%
Median Annual Tax Bill $207
Median Year Built 1925
Median Ownership Tenure 13 years

Properties on William St

Owner names and prior sale amounts shown locked below are available instantly with a free trial.

438 William St

4 bd · 4 ba · 2,074 sqft · built 1900 · 0.03 acres

Last Sale Tax Bill Prior Sale Owner Records
$170,000Jun 2025 $5472026 Amount on Record Oct 2017 1 Name on Record AssessorUpdated Jun 2026

439 William St

2 bd · 2 ba · 1,458 sqft · built 1920 · 0.036 acres

Last Sale Tax Bill Prior Sale Owner Records
$45,000Sep 2022 $2022026 1 Name on Record Assessor + 2 DocumentsUpdated Aug 2026

443 William St

2 bd · 1 ba · 1,510 sqft · built 1925 · 0.035 acres

Last Sale Tax Bill Prior Sale Owner Records
—Apr 1996 $352026 —Feb 1994 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

445 William St

4 bd · 2 ba · 2,210 sqft · built 1920 · 0.081 acres

Last Sale Tax Bill Prior Sale Owner Records
$76,500Nov 2009 $3472026 Amount on Record Aug 2000 1 Name on Record Owner Occupied Assessor + 2 DocumentsUpdated Jun 2026

447 William St

2 bd · 1 ba · 1,302 sqft · built 1931 · 0.052 acres

Last Sale Tax Bill Prior Sale Owner Records
$13,500Jul 2022 $2282026 1 Name on Record Assessor + 3 DocumentsUpdated Jun 2026

449 William St

3 bd · 1 ba · 1,481 sqft · built 1930 · 0.06 acres

Last Sale Tax Bill Prior Sale Owner Records
$26,560Jan 1996 $1582026 1 Name on Record Owner Occupied AssessorUpdated Jun 2026

450 William St

2 bd · 1 ba · 1,080 sqft · built 1928 · 0.044 acres

Last Sale Tax Bill Prior Sale Owner Records
$25,000Dec 2006 $2532026 2 Names on Record AssessorUpdated Jun 2026

451 William St

2 bd · 1 ba · 760 sqft · built 1930 · 0.047 acres

Last Sale Tax Bill Prior Sale Owner Records
$29,000Sep 2018 $2072026 Amount on Record Aug 2012 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

453 William St

2 bd · 1 ba · 1,360 sqft · built 1920 · 0.067 acres

Last Sale Tax Bill Prior Sale Owner Records
$14,000Mar 2013 $2662026 —Dec 2012 1 Name on Record AssessorUpdated Jun 2026

454 William St

2 bd · 1 ba · 960 sqft · built 1898 · 0.044 acres

Last Sale Tax Bill Prior Sale Owner Records
$29,000Jun 2005 $1502026 1 Name on Record AssessorUpdated Jun 2026

464 William St

1 bd · 1 ba · 1,025 sqft · built 1930 · 0.025 acres

Last Sale Tax Bill Prior Sale Owner Records
$2,000Feb 2020 $1452026 Amount on Record Feb 2003 1 Name on Record Assessor + 1 DocumentUpdated Jun 2026

Wildfire Risk on William St

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

Property Records in Nearby Streets