541 Islip Ave
Islip, NY 11751
— ba 1,878 sqft Built 1947 Lot 13,939 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Nov 17, 2021 | Sold | $515,000 | Public Record |
| Dec 15, 2020 | Listing removed | $350,000 | OneKeyMLS |
| Aug 22, 2019 | Sold | $267,225 | Public Record |
| Jul 18, 2019 | Sold | $267,225 | OneKeyMLS |
| Apr 3, 2019 | Listed | $230,000 | OneKeyMLS |
| May 2, 2018 | Listing removed | $350,000 | OneKeyMLS |
| Nov 2, 2017 | Listed | $350,000 | OneKeyMLS |
| Jul 19, 2010 | Listing removed | $299,990 | OneKeyMLS |
| Oct 19, 2009 | Listed | $299,990 | OneKeyMLS |
| Mar 14, 2005 | Sold | $310,000 | Public Record |
| Jan 13, 2004 | Sold | $240,000 | Public Record |
| Mar 2, 1995 | Sold | $93,000 | Public Record |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $30,200 | $8,800 | $39,000 | $12,916 |
| 2024 | $30,200 | $8,800 | $39,000 | $11,529 |
| 2023 | $28,900 | $8,800 | $37,700 | $11,529 |
| 2022 | $25,900 | $8,800 | $34,700 | $11,695 |
| 2017 | $25,900 | $8,800 | $34,700 | $9,410 |
| 2016 | $25,900 | $8,800 | $34,700 | $9,295 |
| 2015 | $25,900 | $8,800 | $34,700 | $9,304 |
| 2014 | $25,900 | $8,800 | $34,700 | $9,180 |
| 2013 | $26,700 | $8,800 | $35,500 | $9,191 |
| 2012 | $26,700 | $8,800 | $35,500 | $8,868 |
| 2011 | $26,700 | $8,800 | $35,500 | $8,503 |
| 2010 | $26,700 | $8,800 | $35,500 | $8,145 |
| 2008 | $26,700 | $8,800 | $35,500 | $7,912 |
| 2007 | $23,200 | $8,800 | $32,000 | $6,414 |
Property facts
Year built
1947
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
1,878 sqft
Lot size
13,939 sqft
ZIP code
11751
City
Islip
Street
Islip Ave
Coordinates
40.75309, -73.20846
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 541 Islip Ave last sell?
No public-record sale is on file for 541 Islip Ave.
What is the current tax assessment for 541 Islip Ave?
The most recent total assessment for 541 Islip Ave (year 2025) is $39,000 with $12,916 in property tax.
When was 541 Islip Ave built?
541 Islip Ave was built in 1947.
How does 541 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 541 Islip Ave?
541 Islip Ave is a — bath, 1,878 sqft, 13,939 sqft lot single_family.
Is 541 Islip Ave a flip candidate?
No — 541 Islip Ave does not appear in our flips dataset.
Is 541 Islip Ave a tax-appeal candidate?
No — 541 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
-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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