21 Walnut Ave
Setauket, NY 11733
— ba Lot 9,583 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 | $1,750 | $250 | $2,000 | $9,326 |
| 2024 | $1,750 | $250 | $2,000 | $8,730 |
| 2023 | $1,750 | $250 | $2,000 | $8,606 |
| 2022 | $1,750 | $250 | $2,000 | $7,564 |
| 2021 | $1,750 | $250 | $2,000 | $7,501 |
| 2020 | $1,750 | $250 | $2,000 | $7,368 |
| 2018 | $1,750 | $250 | $2,000 | $7,151 |
| 2017 | $1,750 | $250 | $2,000 | $5,804 |
| 2016 | $1,750 | $250 | $2,000 | $5,726 |
| 2015 | $1,750 | $250 | $2,000 | $5,513 |
| 2014 | $1,750 | $250 | $2,000 | $5,287 |
| 2013 | $1,750 | $250 | $2,000 | $5,199 |
| 2012 | $1,750 | $250 | $2,000 | $5,014 |
| 2011 | $1,750 | $250 | $2,000 | $4,914 |
| 2010 | $1,750 | $250 | $2,000 | $4,648 |
| 2008 | $1,750 | $250 | $2,000 | $4,372 |
| 2007 | $1,750 | $250 | $2,000 | $4,067 |
| 2006 | $1,750 | $250 | $2,000 | $3,787 |
Property facts
Year built
—
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
—
Lot size
9,583 sqft
ZIP code
11733
City
Setauket
Street
Walnut Ave
Coordinates
40.95244, -73.08479
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Walnut Ave last sell?
No public-record sale is on file for 21 Walnut Ave.
What is the current tax assessment for 21 Walnut Ave?
The most recent total assessment for 21 Walnut Ave (year 2025) is $2,000 with $9,326 in property tax.
When was 21 Walnut Ave built?
The year built for 21 Walnut Ave is not in our records.
How does 21 Walnut Ave compare to others on Walnut Ave?
We track 3 other properties on Walnut Ave. Browse the list under "Other properties on Walnut Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Walnut Ave?
21 Walnut Ave is a — bath, 9,583 sqft lot single_family.
Is 21 Walnut Ave a flip candidate?
No — 21 Walnut Ave does not appear in our flips dataset.
Is 21 Walnut Ave a tax-appeal candidate?
No — 21 Walnut 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
-2.6%
Implied 1-yr
-10.6%
2026 Q3
$847.4K
2026 Q4
$820.4K
ZIP 11733 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Walnut Ave