21 Waterside Ave
Northport, NY 11768
— ba Lot 10,890 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 | $2,325 | $375 | $2,700 | $7,412 |
| 2024 | $2,325 | $375 | $2,700 | $11,151 |
| 2023 | $2,625 | $375 | $3,000 | $12,862 |
| 2022 | $2,625 | $375 | $3,000 | $12,632 |
| 2021 | $2,625 | $375 | $3,000 | $6,049 |
| 2020 | $2,625 | $375 | $3,000 | $11,275 |
| 2018 | $2,625 | $375 | $3,000 | $10,853 |
| 2017 | $2,625 | $375 | $3,000 | $5,560 |
| 2016 | $2,625 | $375 | $3,000 | $5,489 |
| 2015 | $2,825 | $375 | $3,200 | $5,793 |
| 2014 | $2,825 | $375 | $3,200 | $5,720 |
| 2013 | $3,075 | $375 | $3,450 | $5,992 |
| 2012 | $3,075 | $375 | $3,450 | $5,881 |
| 2011 | $3,075 | $375 | $3,450 | $5,774 |
| 2010 | $3,075 | $375 | $3,450 | $5,603 |
| 2008 | $3,075 | $375 | $3,450 | $5,523 |
| 2007 | $3,075 | $375 | $3,450 | $5,158 |
| 2006 | $3,075 | $375 | $3,450 | $4,982 |
Property facts
Year built
—
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
—
Lot size
10,890 sqft
ZIP code
11768
City
Northport
Street
Waterside Ave
Coordinates
40.90037, -73.32917
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Waterside Ave last sell?
No public-record sale is on file for 21 Waterside Ave.
What is the current tax assessment for 21 Waterside Ave?
The most recent total assessment for 21 Waterside Ave (year 2025) is $2,700 with $7,412 in property tax.
When was 21 Waterside Ave built?
The year built for 21 Waterside Ave is not in our records.
How does 21 Waterside Ave compare to others on Waterside Ave?
We track 8 other properties on Waterside Ave. Browse the list under "Other properties on Waterside Ave" to compare beds, baths, and sale history.
What are the property facts for 21 Waterside Ave?
21 Waterside Ave is a — bath, 10,890 sqft lot single_family.
Is 21 Waterside Ave a flip candidate?
No — 21 Waterside Ave does not appear in our flips dataset.
Is 21 Waterside Ave a tax-appeal candidate?
No — 21 Waterside 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
-1.2%
Implied 1-yr
-5.0%
2026 Q3
$1.02M
2026 Q4
$1.01M
ZIP 11768 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Waterside Ave