142 Union Ave
Islip, NY 11751
2 bd 1 ba Built 1938 Lot 9,583 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 | $21,600 | $9,400 | $31,000 | $9,880 |
| 2024 | $21,600 | $9,400 | $31,000 | $9,381 |
| 2023 | $21,600 | $9,400 | $31,000 | $9,381 |
| 2022 | $21,600 | $9,400 | $31,000 | $9,385 |
| 2021 | $21,600 | $9,400 | $31,000 | $10,003 |
| 2020 | $20,550 | $9,400 | $29,950 | $8,261 |
| 2017 | $20,550 | $9,400 | $29,950 | $7,905 |
| 2016 | $20,550 | $9,400 | $29,950 | $7,872 |
| 2015 | $20,550 | $9,400 | $29,950 | $7,893 |
| 2014 | $20,550 | $9,400 | $29,950 | $7,775 |
| 2013 | $20,550 | $9,400 | $29,950 | $7,594 |
| 2012 | $20,550 | $9,400 | $29,950 | $7,310 |
| 2011 | $20,550 | $9,400 | $29,950 | $7,032 |
| 2010 | $20,550 | $9,400 | $29,950 | $6,729 |
| 2008 | $20,550 | $9,400 | $29,950 | $6,349 |
| 2007 | $20,550 | $9,400 | $29,950 | $5,912 |
Property facts
Year built
1938
Property type
single_family
Stories
—
Beds
2
Baths
1
Living area
—
Lot size
9,583 sqft
ZIP code
11751
City
Islip
Street
Union Ave
Coordinates
40.72433, -73.21248
Frequently asked questions
When did 142 Union Ave last sell?
No public-record sale is on file for 142 Union Ave.
What is the current tax assessment for 142 Union Ave?
The most recent total assessment for 142 Union Ave (year 2025) is $31,000 with $9,880 in property tax.
When was 142 Union Ave built?
142 Union Ave was built in 1938.
How does 142 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 142 Union Ave?
142 Union Ave is a 2 bed, 1 bath, 9,583 sqft lot single_family.
Is 142 Union Ave a flip candidate?
No — 142 Union Ave does not appear in our flips dataset.
Is 142 Union Ave a tax-appeal candidate?
No — 142 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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