Presenting a rare and compelling joint offering at 55 & 70

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Home For Sale

55 & 70 Peconic Ave

Shelter Island, New York 11964

Suffolk County

Community: 

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$6,945,000 8 br, 8.0 bath 0 sq. ft. 1.400 acres

Presenting a rare and compelling joint offering at 55 & 70 Peconic Avenue-a modern compound opportunity in one of Shelter Island's most coveted waterfront enclaves. Together, these two distinct yet complementary properties deliver scale, privacy, and irreplaceable southwest-facing water views across the Peconic toward Southampton-creating a legacy estate unlike anything else on the market. 55 Peconic Avenue, newly completed in 2022, is a bold contemporary residence set on 1.4 acres, designed for seamless year-round living. Southwest water views flood the open-concept main level, where living and dining spaces center around a striking raised propane fireplace and flow effortlessly into a sleek, island-driven kitchen built for gathering. The private primary wing features a walk-in dressing room and spa-caliber bath with outdoor shower access, while two guest bedrooms occupy the opposite wing for ideal separation. A partially finished lower level offers flexible bonus space with full bath and storage. Outdoors, a 20' x 40' Gunite pool with integrated spa, marble accents, and custom tile anchors resort-level living, complemented by an entertaining area, lush irrigation, and a detached three-car garage. 70 Peconic Avenue is a commanding, four-level waterfront estate with nearly every room oriented toward panoramic water views. From the dramatic entry foyer to the east-facing living room with oversized windows and classic fireplace, the home pulls the Peconic directly indoors. The chef's kitchen-appointed with Wolf, Sub-Zero, and Bosch appliances-centers around a marble island and opens to a dining space framed by water and warmed by a propane fireplace. Coffered ceilings elevate the architectural detail throughout. The primary suite offers a Rumsford fireplace, spa bath, and private waterfront deck, while additional en-suite guest rooms ensure comfort and privacy. The third-level lounge with wet bar and retractable-awnings deck delivers breathtaking elevated views. A fully finished lower level adds substantial living space for media, guests, or extended stays. The waterfront infrastructure is exceptional: approximately 105 feet of PVC bulkhead, staircase to a sandy beach, and a 75-foot L-shaped dock with extension and swimming ladder-offering direct boating access and effortless shoreline living. Offered together, 55 and 70 Peconic Avenue create a one-of-a-kind Shelter Island compound-pairing modern poolside luxury with commanding dock-front waterfront living. Turn-key. Irreplaceable. A generational opportunity.

Interior:
  • Bedrooms: 8
  • Baths: 8.0
  • Sq Ft: 0
  • Year Built: 0
  • Utilities: 
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  • Stories: 
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  • Garage: Garage
Exterior:
  • Lot Size: 1.400 acre
  • Lot Dimensions: 
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  • Yard: 
  • Siding: 
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  • MLS #: 11666053
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Contact Information:
Beach Home For Sale in Shelter Island, New York
Listing Agent: Jack Richardson, Serhant LLC, 646-480-7665, 631-500-8800 Listing Site, Listing Status: Active
Copyright © 2026 My State MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Ad Number: 7354692
Viewed 24 times.
Updated: Mar 04, 2026

This property is a Home located at 55 & 70 Peconic Ave, Shelter Island, New York 11964, and is currently For Sale at $6,945,000. This Home has 8 bedrooms, 8.0 baths, 0 sq ft.