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3645 Soundview AvenuePeconic, NY 11958

For Sale

$3,300,000

Smart Buyer Rebate $33,000

North Fork retreat! A powder white sandy path leads to a gorgeous private beach offering 116 ft. of waterfrontage while incredible sparkling Sound views, sunsets, and lush greenery set this property apart. Enjoy water views from the open concept main level and the expansive 800+ sq. ft. rear deck - perfect for lounging, al fresco dining and taking in the fresh sea air. With over 3,000 sq. ft. of living space and an unfinished basement that offers an additional shy 1,000 sq. ft. without the 2-car attached garage, there is ample space for entertaining and to accommodate large gatherings. The first level includes a living/dining room and kitchen that flow seamlessly into one another while walls of glass allow natural light to saturate the space and provide access to the deck. There is also a bonus room conveniently located on the first floor. The second level boasts an oversized 800+ sq. ft. primary suite - also with gleaming water views, which can be divided into two ensuites. Two additional bedrooms and a full bath complete this level. All baths are updated and there are new HVAC and water filtrations systems in place. There is oil heat with the oil tank located in the basement. This property is also offered as a compound. See 3651 Soundview Ave.

Listed by Nicholas S. Liappas

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Compass Greater NY LLC

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516-214-7761

Listed by Connie Liappas

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Compass Greater NY LLC

Last updated September 14, 2026

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Source: OneKey #1007876

Listing Facts

  • TypeSingle-family
  • NeighborhoodSouthold
  • Bedrooms4
  • Bathrooms3
  • Days on Prevu17
  • Taxes$18,226/year
  • Size3,028 sqft
  • Price per sqft$1,090

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

08/29/2026
Status changed to Active
$3,300,000
08/29/2026
Listed by Compass Greater NY LLC
$3,300,000
  1. 08/29/2026$3,300,000
    Status changed to Active
  2. 08/29/2026$3,300,000
    Listed by Compass Greater NY LLC

Property Details for 3645 Soundview Avenue

Exterior

Construction

  • Window Features: Oversized Windows, Wall Of Windows
  • Year Built: 1986
  • Architectural Style: Colonial
  • Construction Materials: Stucco
  • Exterior Features: Fire Pit

Features

  • Patio And Porch Features: Deck
  • View: Open, Panoramic, Trees/Woods, Water
  • Waterfront Features: Beach Access, Sound, Water Access

Measurements

  • Building Area Total: 4,000
  • Building Area Units: Square Feet
  • Lot Features: Level, Part Wooded, Private, Secluded, Views
  • Lot Size Acres: 1.75
  • Lot Size Square Feet: 76,230

Financial

Taxes

  • Parcel Number: 1000-068-00-01-00-014-001
  • Tax Annual Amount: $18,226.00
  • Tax Assessed Value: $11,600.00
  • Tax Year: 2026

Interior

Features

  • Appliances: Dishwasher, Dryer, Freezer, Range, Refrigerator, Washer
  • Fireplace Features: Bedroom, Family Room
  • Fireplace: Yes
  • Fireplaces Total: 2
  • Flooring: Hardwood, Tile
  • Interior Features: First Floor Full Bath, Breakfast Bar, Entrance Foyer, Open Floorplan, Open Kitchen, Primary Bathroom

Measurements

  • Living Area: 3,028
  • Living Area Source: Other

Rooms

  • Basement: Unfinished
  • Has Basement: Yes
  • Bathrooms Full: 2
  • Bathrooms Half: 1
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 4
  • Rooms Total: 8

Parking

Parking

  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Attached, 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
  • Heating: Oil
  • Laundry Features: Laundry Room
  • Sewer: Cesspool
  • Utilities: Cable Available, 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 4 bedrooms and 3 bathrooms in this single-family home at 3645 Soundview Avenue.

What schools are nearby to 3645 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 2 parking spaces available for 3645 Soundview Avenue.

What are the annual taxes for 3645 Soundview Avenue?

Annual taxes for this single-family home are estimated at $18,226.

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

This single-family home is listed 62% above the average price for single-family homes in Southold and has been on the market for 100 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 3,028 sqft.

3645 Soundview Avenue is a 4-bedroom, 3-bath single-family home for sale in Peconic NY 11958. On Prevu for 17 days at $3,300,000. This residence features 3,028 square feet of living space, located in Southold. The median listing price for single-family homes in this area is $1,485,000. Nearby schools include Mattituck-Cutchogue Elementary Sch, Mattituck Junior-Senior High School, and Mattituck Junior-Senior High School. Property amenities include private outdoor space, dishwasher, air conditioning, parking, and washer/dryer. Browse more 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.