178 Union Ave
Islip, NY 11751
— ba 2,573 sqft Built 1974 Lot 5,227 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 | $46,600 | $9,400 | $56,000 | $19,211 |
| 2024 | $46,600 | $9,400 | $56,000 | $18,211 |
| 2023 | $46,600 | $9,400 | $56,000 | $18,211 |
| 2022 | $41,600 | $9,400 | $51,000 | $15,670 |
| 2021 | $41,600 | $9,400 | $51,000 | $7,455 |
| 2017 | $41,600 | $9,400 | $51,000 | $13,904 |
| 2016 | $41,600 | $9,400 | $51,000 | $13,839 |
| 2015 | $41,600 | $9,400 | $51,000 | $13,860 |
| 2014 | $41,600 | $9,400 | $51,000 | $13,643 |
| 2013 | $41,600 | $9,400 | $51,000 | $13,382 |
| 2012 | $41,600 | $9,400 | $51,000 | $12,808 |
| 2011 | $41,600 | $9,400 | $51,000 | $12,322 |
| 2010 | $41,600 | $9,400 | $51,000 | $11,797 |
| 2008 | $41,600 | $9,400 | $51,000 | $11,094 |
| 2007 | $41,600 | $9,400 | $51,000 | $10,392 |
Property facts
Year built
1974
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
2,573 sqft
Lot size
5,227 sqft
ZIP code
11751
City
Islip
Street
Union Ave
Coordinates
40.72336, -73.21240
Comparable properties nearby
Frequently asked questions
When did 178 Union Ave last sell?
No public-record sale is on file for 178 Union Ave.
What is the current tax assessment for 178 Union Ave?
The most recent total assessment for 178 Union Ave (year 2025) is $56,000 with $19,211 in property tax.
When was 178 Union Ave built?
178 Union Ave was built in 1974.
How does 178 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 178 Union Ave?
178 Union Ave is a — bath, 2,573 sqft, 5,227 sqft lot single_family.
Is 178 Union Ave a flip candidate?
No — 178 Union Ave does not appear in our flips dataset.
Is 178 Union Ave a tax-appeal candidate?
No — 178 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
Explore nearby
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