21 Water St
Sag Harbor, NY 11963
Built 2017 Lot 2,262 sqft single_family
Most recent sale
$4,850,000
Apr 28, 2022
Location
Timeline: Sale, Listing & Tax History
Recorded events
| Date | Event | Price | Source |
|---|---|---|---|
| Apr 27, 2026 | Listed for rent | $170,000 | CorcoranGroup |
| Feb 11, 2026 | Listing removed | $3,950,000 | MyStateMLS |
| Nov 14, 2025 | Sold | $3,600,000 | Public Record |
| Mar 22, 2025 | Price changed | $3,950,000 | DouglasElliman |
| Jul 31, 2024 | Price changed | $4,295,000 | DouglasElliman |
| Apr 30, 2024 | Listed | $4,695,000 | DouglasElliman |
| Apr 15, 2023 | Listing removed | $4,995,000 | OneKeyMLS |
| Apr 28, 2022 | Sold | $4,850,000 | MLS #11050937 |
| Feb 12, 2022 | Listed | $4,995,000 | MLS #3375762 |
| Feb 11, 2022 | Listed | $4,995,000 | MLS #11050937 |
| Jun 25, 2019 | Sold | $3,815,200 | Public Record |
| May 22, 2019 | Sold | $3,800,000 | MLS #10350680 |
| Aug 14, 2018 | Relisted | $4,495,000 | MLS #10350680 |
| Apr 12, 2017 | Listing removed | $4,495,000 | MyStateMLS |
| Mar 8, 2017 | Listing removed | $4,495,000 | EastEndLI |
| Feb 2, 2017 | Price changed | $4,495,000 | MLS #10350680 |
| Feb 10, 2016 | Listed | $4,495,000 | MLS #104440 |
| Jan 8, 2016 | Listing removed | $5,625,000 | RealPlus |
| Jul 17, 2015 | Listed | $5,625,000 | MLS #HALS12969082 |
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $1,071,100 | — | $1,071,100 | $1,487 |
| 2024 | $1,071,100 | — | $1,071,100 | $2,975 |
| 2023 | $1,071,100 | — | $1,071,100 | $2,945 |
| 2022 | $1,071,100 | — | $1,071,100 | $8,756 |
| 2021 | $1,298,792 | — | $1,298,792 | $9,896 |
| 2020 | $1,298,792 | — | $1,298,792 | $6,960 |
| 2019 | $1,298,792 | — | $1,298,792 | $6,960 |
| 2018 | $1,298,792 | — | $1,298,792 | $7,461 |
| 2017 | $2,300,000 | — | $2,300,000 | $13,214 |
Property facts
Year built
2017
Property type
single_family
Stories
—
Beds
—
Baths
—
Living area
—
Lot size
2,262 sqft
ZIP code
11963
City
Sag Harbor
Street
Water St
Coordinates
41.00013, -72.29995
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 21 Water St last sell?
21 Water St most recently sold on Apr 28, 2022 for $4,850,000.
What is the current tax assessment for 21 Water St?
The most recent total assessment for 21 Water St (year 2025) is $1,071,100 with $1,487 in property tax.
How does 21 Water St's assessment compare to its last sale price?
The current assessment is 77.9% below the last sale price of $4,850,000.
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 2,262 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