55 & 70 Peconic Ave, Shelter Island, NY 11964

$6,945,000 List Price
In Contract on 4/23/2026
8 Beds
7.5 Baths
 
Listing ID 929926
Property Type Residential
County Suffolk
Township Shelter Island
Hamlet Shelter Island
Tax ID 0700-025.000-01-000.004
FEMA Flood Map fema.gov/portal
   
Virtual Tour

Commanding Waterfront | Dock, Bulkhead & Panoramic Views

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.
Property Details
  • 8 Total Bedrooms
  • 7 Full Baths
  • 1 Half Bath
  • 1.40 Acres
  • Available 3/03/2026
Interior Features
  • Hardwood Flooring
  • Family Room
  • Den/Office
  • Media Room
  • Bonus Room
  • Great Room
  • Gym
  • Library
  • Breakfast
  • Laundry
  • First Floor Primary Bedroom
  • First Floor Bathroom
  • Central A/C
Exterior Features
  • Has Garage
  • 3 Garage Spaces
  • Pool: In Ground, Gunite
  • Dock Rights Waterfront
Presented By
Bespoke Real Estate
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