521 23rd St
Allentown, PA 18104
3 bd 1 ba 1,632 sqft Built 1943 single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2026 | $149,400 | $20,600 | $170,000 | $5,687 |
| 2024 | $149,400 | $20,600 | $170,000 | $8,493 |
| 2023 | $149,400 | $20,600 | $170,000 | $8,493 |
| 2022 | $149,400 | $20,600 | $170,000 | $5,448 |
| 2021 | $149,400 | $20,600 | $170,000 | $5,341 |
| 2020 | $149,400 | $20,600 | $170,000 | $5,205 |
| 2019 | $149,400 | $20,600 | $170,000 | $5,122 |
| 2018 | $149,400 | $20,600 | $170,000 | $4,764 |
| 2017 | $149,400 | $20,600 | $170,000 | $4,646 |
| 2016 | $149,400 | $20,600 | $170,000 | $4,653 |
| 2015 | $149,400 | $20,600 | $170,000 | $4,655 |
| 2014 | $149,400 | $20,600 | $170,000 | $6,726 |
| 2013 | $149,400 | $20,600 | $170,000 | $6,598 |
| 2012 | $50,400 | $7,500 | $57,900 | $58,422 |
| 2011 | $50,400 | $7,500 | $57,900 | $4,391 |
| 2010 | $50,400 | $7,500 | $57,900 | $3,997 |
| 2009 | $50,400 | $7,500 | $57,900 | $3,997 |
| 2008 | $50,400 | $7,500 | $57,900 | $3,997 |
Property facts
Year built
1943
Property type
single_family
Stories
2
Beds
3
Baths
1
Living area
1,632 sqft
Lot size
—
ZIP code
18104
City
Allentown
Street
23rd St
Coordinates
40.60081, -75.50814
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 521 23rd St last sell?
No public-record sale is on file for 521 23rd St.
What is the current tax assessment for 521 23rd St?
The most recent total assessment for 521 23rd St (year 2026) is $170,000 with $5,687 in property tax.
When was 521 23rd St built?
521 23rd St was built in 1943.
How does 521 23rd St compare to others on 23rd St?
We track 8 other properties on 23rd St. Browse the list under "Other properties on 23rd St" to compare beds, baths, and sale history.
What are the property facts for 521 23rd St?
521 23rd St is a 3 bed, 1 bath, 1,632 sqft single_family.
Is 521 23rd St a flip candidate?
No — 521 23rd St does not appear in our flips dataset.
Is 521 23rd St a tax-appeal candidate?
No — 521 23rd 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
+4.5%
Implied 1-yr
+17.9%
2026 Q3
$584.7K
2026 Q4
$605K
ZIP 18104 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 23rd St