1540 Islip Ave
Brentwood, NY 11717
— ba 1,954 sqft Built 1975 Lot 8,276 sqft multi_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 | $32,100 | $6,700 | $38,800 | $10,436 |
| 2024 | $32,100 | $6,700 | $38,800 | $9,964 |
| 2023 | $32,100 | $6,700 | $38,800 | $9,964 |
| 2022 | $32,100 | $6,700 | $38,800 | $9,860 |
| 2021 | $32,100 | $6,700 | $38,800 | $9,672 |
| 2020 | $32,100 | $6,700 | $38,800 | $9,297 |
| 2017 | $32,100 | $6,700 | $38,800 | $8,830 |
| 2016 | $32,100 | $6,700 | $38,800 | $8,724 |
| 2015 | $32,100 | $6,700 | $38,800 | $8,691 |
| 2014 | $32,100 | $6,700 | $38,800 | $8,577 |
| 2013 | $32,100 | $6,700 | $38,800 | $8,348 |
| 2012 | $32,100 | $6,700 | $38,800 | $8,103 |
| 2011 | $32,100 | $6,700 | $38,800 | $7,798 |
| 2010 | $32,100 | $6,700 | $38,800 | $7,479 |
| 2008 | $32,100 | $6,700 | $38,800 | $7,083 |
Property facts
Year built
1975
Property type
multi_family
Stories
—
Beds
—
Baths
—
Living area
1,954 sqft
Lot size
8,276 sqft
ZIP code
11717
City
Brentwood
Street
Islip Ave
Coordinates
40.77969, -73.21695
Comparable properties nearby
Frequently asked questions
When did 1540 Islip Ave last sell?
No public-record sale is on file for 1540 Islip Ave.
What is the current tax assessment for 1540 Islip Ave?
The most recent total assessment for 1540 Islip Ave (year 2025) is $38,800 with $10,436 in property tax.
When was 1540 Islip Ave built?
1540 Islip Ave was built in 1975.
How does 1540 Islip Ave compare to others on Islip Ave?
We track 8 other properties on Islip Ave. Browse the list under "Other properties on Islip Ave" to compare beds, baths, and sale history.
What are the property facts for 1540 Islip Ave?
1540 Islip Ave is a — bath, 1,954 sqft, 8,276 sqft lot multi_family.
Is 1540 Islip Ave a flip candidate?
No — 1540 Islip Ave does not appear in our flips dataset.
Is 1540 Islip Ave a tax-appeal candidate?
No — 1540 Islip 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
+1.8%
Implied 1-yr
+7.3%
2026 Q2
$606.3K
2026 Q3
$616.1K
ZIP 11717 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Islip Ave