21 Water St
Sag Harbor, NY 11963
— ba Built 2017 Lot 2,454 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 | $1,014,500 | — | $1,014,500 | $1,408 |
| 2024 | $1,014,500 | — | $1,014,500 | $2,817 |
| 2023 | $1,014,500 | — | $1,014,500 | $2,789 |
| 2022 | $1,014,500 | — | $1,014,500 | $8,293 |
| 2021 | $1,116,500 | — | $1,116,500 | $8,763 |
| 2020 | $1,116,500 | — | $1,116,500 | $5,983 |
| 2018 | $1,116,500 | — | $1,116,500 | $6,414 |
| 2017 | $1,300,000 | — | $1,300,000 | $7,468 |
Property facts
Year built
2017
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
—
Lot size
2,454 sqft
ZIP code
11963
City
Sag Harbor
Street
Water St
Coordinates
41.00005, -72.29988
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Water St last sell?
No public-record sale is on file for 21 Water St.
What is the current tax assessment for 21 Water St?
The most recent total assessment for 21 Water St (year 2025) is $1,014,500 with $1,408 in property tax.
When was 21 Water St built?
21 Water St was built in 2017.
How does 21 Water St compare to others on Water St?
We track 8 other properties on Water St. Browse the list under "Other properties on Water St" to compare beds, baths, and sale history.
What are the property facts for 21 Water St?
21 Water St is a — bath, 2,454 sqft lot single_family.
Is 21 Water St a flip candidate?
No — 21 Water St does not appear in our flips dataset.
Is 21 Water St a tax-appeal candidate?
No — 21 Water St 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
+4.9%
2026 Q2
$3.7M
2026 Q3
$3.74M
ZIP 11963 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Water St