33 Tappan Ave
Islip, NY 11751
— ba 972 sqft Built 1947 Lot 11,761 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 | $21,000 | $14,600 | $35,600 | $12,806 |
| 2017 | $21,000 | $14,600 | $35,600 | $10,712 |
| 2016 | $20,000 | $14,600 | $34,600 | $8,013 |
| 2015 | $20,000 | $14,600 | $34,600 | $9,211 |
| 2014 | $20,000 | $14,600 | $34,600 | $9,071 |
| 2013 | $20,000 | $14,600 | $34,600 | $8,856 |
| 2012 | $20,000 | $14,600 | $34,600 | $8,524 |
| 2011 | $20,000 | $14,600 | $34,600 | $8,201 |
| 2010 | $20,000 | $14,600 | $34,600 | $7,848 |
| 2008 | $20,000 | $14,600 | $34,600 | $7,397 |
| 2007 | $20,000 | $14,600 | $34,600 | $6,934 |
Property facts
Year built
1947
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
972 sqft
Lot size
11,761 sqft
ZIP code
11751
City
Islip
Street
Tappan Ave
Coordinates
40.72928, -73.20444
Comparable properties nearby
Frequently asked questions
When did 33 Tappan Ave last sell?
No public-record sale is on file for 33 Tappan Ave.
What is the current tax assessment for 33 Tappan Ave?
The most recent total assessment for 33 Tappan Ave (year 2025) is $35,600 with $12,806 in property tax.
When was 33 Tappan Ave built?
33 Tappan Ave was built in 1947.
How does 33 Tappan Ave compare to others on Tappan Ave?
We track 2 other properties on Tappan Ave. Browse the list under "Other properties on Tappan Ave" to compare beds, baths, and sale history.
What are the property facts for 33 Tappan Ave?
33 Tappan Ave is a — bath, 972 sqft, 11,761 sqft lot single_family.
Is 33 Tappan Ave a flip candidate?
No — 33 Tappan Ave does not appear in our flips dataset.
Is 33 Tappan Ave a tax-appeal candidate?
No — 33 Tappan 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
Geography
Other properties on Tappan Ave