1 Adelphi St
Islip, NY 11751
— ba 1,603 sqft Built 1956 Lot 15,682 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 | $34,200 | $12,900 | $47,100 | $16,305 |
| 2017 | $34,200 | $12,900 | $47,100 | $12,836 |
| 2016 | $34,200 | $12,900 | $47,100 | $12,775 |
| 2015 | $34,200 | $12,900 | $47,100 | $12,754 |
| 2014 | $34,200 | $12,900 | $47,100 | $12,639 |
| 2013 | $34,200 | $12,900 | $47,100 | $12,254 |
| 2012 | $34,200 | $12,900 | $47,100 | $11,874 |
| 2011 | $34,200 | $12,900 | $47,100 | $11,384 |
| 2010 | $34,200 | $12,900 | $47,100 | $10,861 |
| 2008 | $34,200 | $12,900 | $47,100 | $10,215 |
Property facts
Year built
1956
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
1,603 sqft
Lot size
15,682 sqft
ZIP code
11751
City
Islip
Street
Adelphi St
Coordinates
40.71993, -73.21969
Comparable properties nearby
Frequently asked questions
When did 1 Adelphi St last sell?
No public-record sale is on file for 1 Adelphi St.
What is the current tax assessment for 1 Adelphi St?
The most recent total assessment for 1 Adelphi St (year 2025) is $47,100 with $16,305 in property tax.
When was 1 Adelphi St built?
1 Adelphi St was built in 1956.
How does 1 Adelphi St compare to others on Adelphi St?
We do not currently track other properties on Adelphi St.
What are the property facts for 1 Adelphi St?
1 Adelphi St is a — bath, 1,603 sqft, 15,682 sqft lot single_family.
Is 1 Adelphi St a flip candidate?
No — 1 Adelphi St does not appear in our flips dataset.
Is 1 Adelphi St a tax-appeal candidate?
No — 1 Adelphi 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
-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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Geography