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3645 and 3651 Soundview Avenue, Peconic NY 11958
3645 and 3651 Soundview Avenue, Peconic NY 11958
New York>Suffolk County>Southold

3645 and 3651 Soundview AvenuePeconic, NY 11958

For Sale

$5,950,000

Smart Buyer Rebate $59,500

Rare North Fork Beachfront estate, shy 3.25 acre compound! The main house features over 3,000 sq. ft. of living space and the beach house offers approximately 1,600 sq. ft. A powder white sandy path leads to a gorgeous private beach with 116+ ft. of waterfront. Enjoy panoramic water views of the sparkling Long Island Sound and enchanting sunsets with this incredible property that presents a multitude of opportunities for its next owner. Listed as a compound but also separately: see 3645 Soundview Ave - the main house (MLS #1007876) and 3651 Soundview Ave - the beach house (MLS #1009245). Please note that this compound listing reflects 3645 Soundview Avenue in fields where only one property's information can be displayed. Please note that combined information of both properties is also displayed where permissible.

Listed by Nicholas S. Liappas

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Compass Greater NY LLC

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516-214-7761

Listed by Connie Liappas

·

Compass Greater NY LLC

Last updated October 30, 2026

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Source: OneKey #1049858

Listing Facts

  • TypeSingle-family
  • NeighborhoodSouthold
  • Bedrooms7
  • Bathrooms5
  • Days on Prevu37
  • Taxes$29,067/year
  • Size4,628 sqft
  • Price per sqft$1,286

Amenities

  • Dishwasher
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

10/29/2026
Price Decreased
$5,950,000
09/24/2026
Listed by Compass Greater NY LLC
$6,200,000
  1. 10/29/2026$5,950,000
    Price Decreased
  2. 09/24/2026$6,200,000
    Listed by Compass Greater NY LLC

Property Details for 3645 and 3651 Soundview Avenue

Exterior

Construction

  • Year Built: 1986
  • Architectural Style: Colonial
  • Construction Materials: Frame, Stucco

Features

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

Measurements

  • Building Area Units: Square Feet
  • Frontage Length: 116
  • Lot Size Acres: 3.24
  • Lot Size Square Feet: 141,134

Financial

Taxes

  • Parcel Number: 1000-068-00-01-00-014-001
  • Tax Annual Amount: $29,067.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Dishwasher, Dryer, Freezer, Range, Refrigerator, Washer
  • Fireplace: Yes
  • Flooring: Hardwood, Tile
  • Interior Features: First Floor Bedroom

Measurements

  • Living Area: 4,628
  • Living Area Source: Other

Rooms

  • Basement: Full
  • Has Basement: Yes
  • Bathrooms Full: 4
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 7
  • Rooms Total: 14

Parking

Parking

  • Garage Spaces: 3
  • Garage: Yes
  • Parking Features: Attached, Detached, Driveway

Schools

Elementary School

  • Elementary School: Mattituck-Cutchogue Elementary Sch
  • Elementary School District: Mattituck-Cutchogue

High School

  • High School: Mattituck Junior-Senior High School
  • High School District: Mattituck-Cutchogue

Middle or Junior School

  • Middle Or Junior School: Mattituck Junior-Senior High School
  • Middle Or Junior School District: Mattituck-Cutchogue

Utilities

Equipment

  • Cooling: Central Air, Ductless, Multi Units
  • Heating: Electric, Heat Pump, Oil
  • Sewer: Cesspool
  • Utilities: Electricity Connected, Trash Collection Private, Water Connected
  • Water Source: Well

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 7 bedrooms and 5 bathrooms in this single-family home at 3645 and 3651 Soundview Avenue.

What schools are nearby to 3645 and 3651 Soundview Avenue?

Nearby schools include the Mattituck-Cutchogue Elementary Sch, Mattituck Junior-Senior High School, and Mattituck Junior-Senior High School.

Does this single-family home have parking?

Yes, there are 3 parking spaces available for 3645 and 3651 Soundview Avenue.

What are the annual taxes for 3645 and 3651 Soundview Avenue?

Annual taxes for this single-family home are estimated at $29,067.

How does 3645 and 3651 Soundview Avenue compare to other single-family homes in Southold?

This single-family home is listed 182% above the average price for single-family homes in Southold and has been on the market for 75 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 4,628 sqft.

3645 and 3651 Soundview Avenue is a 7-bedroom, 5-bath single-family home for sale in Peconic NY 11958. Available on Prevu for 37 days at $5,950,000. This includes a recent price decrease of $250,000. This residence features 4,628 square feet of living space, located in Southold. The median listing price for single-family homes in this area is $1,722,500. Nearby schools include Mattituck-Cutchogue Elementary Sch, Mattituck Junior-Senior High School, and Mattituck Junior-Senior High School. Property amenities include dishwasher, air conditioning, parking, and washer/dryer. View other single-family home listings in Suffolk County.

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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.