Perched 59 feet above sea level for commanding views and peace of mind, this exceptional contemporary estate, designed by noted architect Kenton van Boer, rests on 9.4 private acres, of which 2.7 acres are buildable, and offers 561 feet of premier waterfront on Smiths Cove. Sweeping panoramic vistas of the Sound and the tranquil yacht anchorage set the scene for direct beachfront access and creek frontage along the serene Miss Annie's Creek, plus the rare opportunity to create your own private dock and mooring. The 1,504 square-foot residence features 2 bedrooms, a study and 2 spa-inspired full baths. A chef's kitchen anchors the open layout, flowing into a light-filled living room with a stone-accented fireplace and a custom built-in dining area. Thoughtful architectural details by Kenton van Boer. Quartzite flagstone masonry patios and walkways add an additional 1,120 square feet of outdoor living, seamlessly extending the home's footprint and immersing you in the surrounding natural beauty. Nestled in a serene coastal setting of wood shingles, flagstone patios, and unspoiled shoreline, this property offers unmatched privacy while being just moments from the Shelter Island Ferry to Sag Harbor. A rare blend of seclusion, convenience, and timeless design.
Pending
$5,875,000
21 Thompson Rd, Shelter Island, NY 11964
2beds
1,504sqft
Single Family Residence
Built in 2022
9.4 Acres Lot
$5,448,200 Zestimate®
$3,906/sqft
$-- HOA
What's special
Commanding viewsQuartzite flagstone masonry patiosDirect beachfront accessOpen layoutUnspoiled shorelineSerene coastal settingStone-accented fireplace
- 217 days |
- 46 |
- 0 |
Zillow last checked: 7 hours ago
Listing by:
Daniel Gale Sotheby's International Realty 631-749-1155,
Debra Von Brook-Binder - Real Estate Sales Person 631-872-2889
Source: Out East,MLS#: 390766
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 2
- Bathrooms: 2
- Full bathrooms: 2
Rooms
- Room types: Laundry
Cooling
- Central Air
Features
- Basement: Yes
- Has fireplace: Yes
Interior area
- Total structure area: 1,504
- Total interior livable area: 1,504 sqft
Video & virtual tour
Property
Parking
- Parking features: None
Features
- Stories: 2
- Pool features: Room for a Pool
- Has view: Yes
- View description: Water
- Has water view: Yes
- Water view: Water
- Waterfront features: Waterfront
- Frontage type: Waterfront
Lot
- Size: 9.4 Acres
Details
- Parcel number: 0700024000100018000
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- New Construction
- New construction: Yes
- Year built: 2022
Community & HOA
Community
- Features: Room for a Tennis Court
Location
- Region: Shelter Island
Financial & listing details
- Price per square foot: $3,906/sqft
- Tax assessed value: $4,113,529
- Date on market: 8/30/2025
- Lease term: Contact For Details
Estimated market value
$5,448,200
$5.18M - $5.72M
$7,955/mo
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 12/23/2025 | Pending sale | $5,875,000$3,906/sqft |
Source: | ||
| 11/6/2025 | Price change | $5,875,000-7.4%$3,906/sqft |
Source: | ||
| 10/8/2025 | Price change | $6,345,000-6%$4,219/sqft |
Source: | ||
| 8/30/2025 | Listed for sale | $6,750,000+1250%$4,488/sqft |
Source: | ||
| 11/12/1999 | Sold | $500,000-76.2%$332/sqft |
Source: Public Record Report a problem | ||
| 9/8/1999 | Sold | $2,100,000$1,396/sqft |
Source: Public Record Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2024 | -- | $2,797,200 |
| 2023 | -- | $2,797,200 +29.5% |
| 2022 | -- | $2,160,000 |
| 2021 | -- | $2,160,000 |
| 2020 | -- | $2,160,000 |
| 2019 | -- | $2,160,000 +7.4% |
| 2018 | -- | $2,011,300 |
| 2017 | $11,929 | $2,011,300 +0% |
| 2016 | -- | $2,011,000 +21.3% |
| 2015 | -- | $1,657,700 +2% |
| 2014 | -- | $1,625,200 |
| 2013 | -- | $1,625,200 |
| 2012 | -- | $1,625,200 -9.1% |
| 2011 | -- | $1,788,000 |
| 2010 | -- | $1,788,000 -10% |
| 2009 | -- | $1,986,000 |
Find assessor info on the county website
Monthly payment
Estimated monthly payment
All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
See how much you could borrow to make a competitive offer.
Climate risks
Neighborhood: 11964
Nearby schools
GreatSchools rating
- 6/10Shelter Island SchoolGrades: PK-12Distance: 1.5 mi
Local experts in 11964
- New York
- Suffolk County
- Shelter Island
- 11964
- 21 Thompson Rd




