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70 Peconic AvenueShelter Island, NY 11964

For Sale

$4,950,000

Smart Buyer Rebate $49,500

This elegant traditional, sited in an inspiring waterfront setting, is a one-of-a-kind, with four levels of finished living space and expansive south-west views toward Southampton. Enter the front foyer where spectacular water views, which are featured in nearly every room, capture your eye. The living room with fireplace on the east side runs from front to rear with an oversized plate glass window. The kitchen has a large marble island with prep sink, microwave drawer, breakfast bar, Wolf range and hood with external exhaust, Sub-Zero refrigerator, Bosch dishwasher, and adjacent dining area with propane-fueled fireplace overlooking the water. There are coffered ceilings throughout the home. The large second floor landing is the centerpiece, with primary bedroom suite on one side with a Rumsford fireplace, bath with soaking tub and separate shower, and French doors to the waterfront deck. Two additional en-suite guest bedrooms, one with direct water views, are on the opposite side of the landing. The third floor has a wet bar, sitting area and waterfront deck with retractable awnings, with majestic views. The lower level, which is 1450+/- sf and not included in the total square footage noted here, is finished, with egress windows throughout, media room, bedroom, and library/office outfitted with two custom murphy beds, full bath with double sinks, laundry room and utility area. A state of the art PVC bulkhead runs the length of the shoreline, approximately 105-feet, with a staircase installed in 2013 to the sandy beach. The L-shaped dock, which was installed Sept 2015, is 75-ft long with a 4-ft extension, swimming ladder with 2.5 feet at low mean tide. The interior was co-designed by Jett Thompson of Naples, FL and the property owner. This is a spectacular beach house, a must-see on Shelter Island., Additional information: Interior Features:Guest Quarters,Lr/Dr

Listed by Penelope A. Moore

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Saunders & Associates

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631-537-5454

Last updated August 27, 2025

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Source: OneKey #L3585501

Listing Facts

  • TypeSingle-family
  • NeighborhoodShelter Island Heights
  • Bedrooms4
  • Bathrooms5
  • Days on Prevu325
  • Taxes$22,240/year
  • Size2,967 sqft
  • Price per sqft$1,668

Amenities

  • Dishwasher
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

08/27/2025
Price Decreased
$4,950,000
05/04/2025
Price Decreased
$5,500,000
10/16/2024
Listed by Saunders & Associates
$5,850,000

Property Details for 70 Peconic Avenue

Exterior

Construction

  • Number Of Units Total: 1
  • Year Built: 2014
  • Construction Materials: Frame, Wood Siding
  • Exterior Features: Balcony, Dock

Features

  • View: Panoramic, Open
  • Waterfront Features: Sound, Beach Access, Beach Front, Waterfront, Water Access
  • Waterfront: Yes

Measurements

  • Lot Size Dimensions: 0
  • Lot Size Square Feet: 21,780

Financial

Taxes

  • Parcel Number: 0700-025-00-01-00-004-000
  • Tax Annual Amount: $22,240.00

Interior

Features

  • Appliances: Dishwasher, Dryer, Microwave, Refrigerator, Washer
  • Fireplace: Yes
  • Fireplaces Total: 3
  • Flooring: Hardwood
  • Interior Features: Eat-in Kitchen, Entrance Foyer, Walk-In Closet(s), Marble Counters, Primary Bathroom

Measurements

  • Living Area: 2,967
  • Living Area Source: Other

Rooms

  • Basement: Full, Partially Finished
  • Bathrooms Full: 4
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 4
  • Rooms Total: 7

Other

Location

  • Tax Block: 1
  • Tax Lot: 4

Parking

Parking

  • Parking Features: Driveway, Private

Schools

Elementary School

  • Elementary School District: Shelter Island

High School

  • High School: Shelter Island School
  • High School District: Shelter Island

Middle or Junior School

  • Middle Or Junior School: Shelter Island School
  • Middle Or Junior School District: Shelter Island

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Propane, Forced Air
  • Sewer: Septic Tank
  • Water Source: Private, Well

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.