11 Sunnyside Avenue Shelter Island, NY $ 5,500,000
11 Sunnyside Avenue
$ 5,500,000
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11 Sunnyside Avenue

Shelter Island, NY, 11964
$ 5,500,000
Bedrooms4 Baths5.1 Sq 4,000

Monthly Estimate*

$ 33,864

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Single Family Home for sale in Shelter Island, NY

for $5,500,000 with 4 bedrooms and 5 full baths, 1 half bath. This 4,000 square foot home was built in 2026 on a lot size of 200.

An architecturally significant modern retreat set on two private acres within coveted Shelter Island Heights owners association. Floor-to-ceiling glass dissolves the boundary between indoors and out, framing the surrounding natural environment from nearly every room. Conceived by developer Angelo Varischetti in collaboration with the award-winning team at WE+ Architecture & Design, the home is a study in light, landscape, and contemporary form. Newly constructed and spanning approximately 4,000 square feet, the residence offers four bedrooms and five-and-a-half bathrooms, thoughtfully designed for both privacy and connection. The open-concept living spaces are anchored by soaring window walls and refined materiality, creating a seamless flow between living, dining, and kitchen areas. The chef's kitchen is both functional and sculptural, featuring premium appliances, custom millwork, and an oversized island designed for gathering. Throughout the home, curated finishes including stone surfaces, bespoke cabinetry, and carefully considered architectural details reinforce the home's modern design language. Each bedroom suite is privately positioned with its own ensuite bath and direct access to the surrounding landscape, offering a retreat-like experience for both owners and guests. The lower level provides flexibility for a wellness area, gym, or media space. Outdoor living is equally compelling. A 50x14 heated knife-edge pool is set within lush, natural surroundings, complemented by expansive decking, an outdoor shower, full bath, and multiple areas for dining and entertaining. The setting is intentionally private, with mature greenery and open sky enhancing the sense of escape. Located within the Shelter Island Heights community, the property offers access to private beaches, tennis, and the island's most sought-after destinations, all while maintaining a sense of seclusion that is increasingly rare. This is Shelter Island at its best. Where architecture, landscape, and lifestyle converge to create a home that feels both elevated and effortless.

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Single Family Active

Price

$ 5,500,000

Bedrooms

4

Full Bath

5

Half Bath

1

Property Type

Single Family

Taxes

$ 4,030

Style

A-Frame

Lot Size

200

Year Built

2026

Town/City

Shelter Island

County/Region

Suffolk

MLS | Web ID

990118

Features
Interior
Interior Amenities First Floor Bedroom First Floor Full Bath Kitchen Island Natural Woodwork Open Floorplan Open Kitchen Pantry Primary Bathroom Master Downstairs Recessed Lighting Sound System Speakers Storage Walk Th
Basement Partially Finished
Total Fireplaces 1
Basement Features Partially Finished
Basement (Y/N) Y
Fireplace Y/N Y
Half Baths 1
Total Bedrooms 4
Total Baths 6
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General
Sewer Septic Tank
Heating Propane Radiant Floor
Cooling Central Air
Utilities See Remarks
Appliances Dishwasher Oven Refrigerator Stainless Steel Appliance(s)
Architectural Style A-Frame
Construction Materials Unknown
Year Built 2026
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 0700-007-00-02-00-004-000
County Suffolk County
Property Type Residential
HOA N
Garage Y/N N
Total Rooms 8
Full Baths 5
High School Shelter Island School
City Shelter Island
Senior Community Y/N N
High School District Shelter Island
Carport Spaces 1
Carport Y/N Y
Elementary School Shelter Island School
Property Attached Y/N N
Tax Annual Amount 4030.72
Middle/Junior High School Shelter Island School
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Shelter Island
Elementary School District Shelter Island
Tax Assessed Value 577500
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Exterior
Parking Features Carport Carport
Water Source None
Building Area Total 5500
Waterfront Y/N N
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Internal Only
Street Number 1 11
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* Excluded Features
List By
Brianna Ottati

Listing Agent

Douglas Elliman Real Estate

Broker

631-725-0200

Contact

Affordability Calculator

$34,200
Per Month
99%
1%
0%
Monthly Principal & Interest
$33,864
Monthly Property Taxes
$336
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
5168583 Elementary School
4100598 Middle School
Shelter Island School High School High School
Pricing History
DatePricePrice ChangeDescription
4/24/2026$5,500,000 Listed Price

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11 Sunnyside Avenue, Shelter Island, NY, 11964 is a Single Family Home for sale at $5,500,000 with 4,000 sqft and a lot size of 200. 11 Sunnyside Avenue has 4 bedrooms, 5.1 baths, and was built in 2026. The property's zip code is 11964 which is in Shelter Island, NY