438 William St
Mount Oliver, PA 15210
4 bd 4 ba 2,074 sqft Built 1900 Lot 1,332 sqft multi_family
Most recent sale
$30,000
Apr 2, 2007
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Jun 17, 2025 | Sold | $170,000 | Public Record |
| Apr 14, 2025 | Price changed | $200,000 | WestPenn |
| Nov 24, 2024 | Listed | $220,000 | WestPenn |
| Jan 9, 2023 | Listing removed | — | WestPenn |
| Oct 15, 2022 | Price changed | $250,000 | MLS #1577460 |
| Sep 26, 2022 | Listed | $275,000 | MLS #1577460 |
| Aug 31, 2022 | Listing removed | — | WestPenn |
| May 9, 2022 | Listed | $349,900 | MLS #1553548 |
| Aug 1, 2017 | Listing removed | $39,900 | WestPenn |
| Apr 25, 2017 | Price changed | $39,900 | MLS #1261547 |
| Feb 6, 2017 | Listed | $44,900 | MLS #1261547 |
| Feb 5, 2017 | Listing removed | $49,900 | WestPenn |
| Jan 4, 2017 | Price changed | $49,900 | MLS #1207159 |
| Feb 5, 2016 | Listed | $69,900 | MLS #1207159 |
| Nov 1, 2015 | Listing removed | $80,000 | WestPenn |
| Oct 31, 2014 | Listed | $80,000 | MLS #1034094 |
| Apr 2, 2007 | Sold | $30,000 | Public Record |
| Sep 5, 2000 | Sold | $65,500 | Public Record |
| Mar 2, 1995 | Sold | $55,000 | Public Record |
| Feb 23, 1984 | Sold | $51,660 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2026 | $68,200 | $17,000 | $85,200 | $2,912 |
| 2025 | $16,600 | $11,400 | $28,000 | $929 |
| 2024 | $16,600 | $11,400 | $28,000 | $853 |
| 2023 | $16,600 | $11,400 | $28,000 | $797 |
| 2022 | $16,600 | $11,400 | $28,000 | $789 |
| 2021 | $16,600 | $11,400 | $28,000 | $789 |
| 2020 | $16,600 | $11,400 | $28,000 | $786 |
| 2019 | $44,700 | $11,400 | $56,100 | $1,575 |
| 2018 | $44,700 | $11,400 | $56,100 | $1,575 |
| 2017 | $44,700 | $11,400 | $56,100 | $1,575 |
| 2016 | $44,700 | $11,400 | $56,100 | $1,575 |
| 2015 | $44,700 | $11,400 | $56,100 | $1,575 |
| 2014 | $44,700 | $11,400 | $56,100 | $1,564 |
| 2013 | $44,700 | $11,400 | $56,100 | $1,804 |
| 2012 | $52,500 | $7,300 | $59,800 | $1,980 |
| 2011 | $52,500 | $7,300 | $59,800 | $1,920 |
| 2010 | $52,500 | $7,300 | $59,800 | $1,920 |
| 2009 | $52,500 | $7,300 | $59,800 | $1,920 |
| 2008 | $52,500 | $7,300 | $59,800 | $1,920 |
Property facts
Year built
1900
Property type
multi_family
Stories
2
Beds
4
Baths
4
Living area
2,074 sqft
Lot size
1,332 sqft
ZIP code
15210
City
Mount Oliver
Street
William St
Coordinates
40.41131, -79.98805
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 438 William St last sell?
438 William St most recently sold on Apr 2, 2007 for $30,000.
What is the current tax assessment for 438 William St?
The most recent total assessment for 438 William St (year 2026) is $85,200 with $2,912 in property tax.
How does 438 William St's assessment compare to its last sale price?
The current assessment is 184.0% above the last sale price of $30,000.
When was 438 William St built?
438 William St was built in 1900.
How does 438 William St compare to others on William St?
We track 1 other property on William St. Browse the list under "Other properties on William St" to compare beds, baths, and sale history.
What are the property facts for 438 William St?
438 William St is a 4 bed, 4 bath, 2,074 sqft, 1,332 sqft lot multi_family.
Is 438 William St a flip candidate?
No — 438 William St does not appear in our flips dataset.
Is 438 William St a tax-appeal candidate?
No — 438 William St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-1.3%
Implied 1-yr
-5.2%
2026 Q2
$117.6K
2026 Q3
$116K
ZIP 15210 — Median Price History + Forecast
Explore nearby
Geography
Other properties on William St