253 Union Ave
Islip, NY 11751
3 bd — ba 2,000 sqft Built 1896 Lot 10,890 sqft 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 |
|---|---|---|---|---|
| 2025 | $32,200 | $10,800 | $43,000 | $15,098 |
| 2024 | $32,200 | $10,800 | $43,000 | $14,120 |
| 2023 | $32,200 | $10,800 | $43,000 | $14,120 |
| 2022 | $31,200 | $10,800 | $42,000 | $12,699 |
| 2021 | $31,200 | $10,800 | $42,000 | $12,176 |
| 2020 | $31,200 | $10,800 | $42,000 | $11,824 |
| 2018 | $31,200 | $10,800 | $42,000 | $11,458 |
| 2017 | $31,200 | $10,800 | $42,000 | $11,339 |
| 2016 | $31,200 | $10,800 | $42,000 | $11,288 |
| 2015 | $31,200 | $10,800 | $42,000 | $11,308 |
| 2014 | $31,200 | $10,800 | $42,000 | $11,134 |
| 2013 | $31,200 | $10,800 | $42,000 | $10,863 |
| 2012 | $31,200 | $10,800 | $42,000 | $10,457 |
| 2011 | $31,200 | $10,800 | $42,000 | $10,060 |
| 2010 | $31,200 | $10,800 | $42,000 | $9,630 |
| 2008 | $28,600 | $10,800 | $39,400 | $8,479 |
| 2007 | $28,600 | $10,800 | $39,400 | $7,923 |
Property facts
Year built
1896
Property type
single_family
Stories
—
Beds
3
Baths
—
Living area
2,000 sqft
Lot size
10,890 sqft
ZIP code
11751
City
Islip
Street
Union Ave
Coordinates
40.72080, -73.21228
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 253 Union Ave last sell?
No public-record sale is on file for 253 Union Ave.
What is the current tax assessment for 253 Union Ave?
The most recent total assessment for 253 Union Ave (year 2025) is $43,000 with $15,098 in property tax.
When was 253 Union Ave built?
253 Union Ave was built in 1896.
How does 253 Union Ave compare to others on Union Ave?
We track 8 other properties on Union Ave. Browse the list under "Other properties on Union Ave" to compare beds, baths, and sale history.
What are the property facts for 253 Union Ave?
253 Union Ave is a 3 bed, — bath, 2,000 sqft, 10,890 sqft lot single_family.
Is 253 Union Ave a flip candidate?
No — 253 Union Ave does not appear in our flips dataset.
Is 253 Union Ave a tax-appeal candidate?
No — 253 Union Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-13.7%
Implied 1-yr
-54.6%
2026 Q1
$212.6K
2026 Q2
$212.6K
ZIP 11751 — Median Price History + Forecast
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