Knaggs Felisme

3645 And 3651 Soundview Avenue

Peconic, NY
$ 6,200,000 Beds 7 Baths 4.5 Sq 4,628
Monthly Estimate* How much can I afford?

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.

Single Family

  • Price
  • $ 6,200,000
  • City
  • Peconic
  • Bedrooms
  • 7
  • Full Bathrooms
  • 4
  • County
  • SUFFOLK
  • Half Bathrooms
  • 1
  • Area
  • Lot Size
  • 3.24 Acres
  • Zip
  • 11958
  • Sqr Footage
  • 4,628
  • Year Built
  • 1986
  • Taxes
  • $ 29067
  • Style
  • Colonial
  • MLS#
  • 1049858
Listed By: Compass Greater NY LLC
Data Source: Listings courtesy of OneKey® MLS as distributed by MLS GRID

Features

General

Sewer Cesspool
Heating Electric,Heat Pump,Oil
Cooling Central Air,Ductless,Multi Units
Utilities Electricity Connected,Trash Collection Private,Water Connected
Appliances Dishwasher,Dryer,Freezer,Range,Refrigerator,Washer
Garage Spaces 3
Architectural Style Colonial
Construction Materials Frame,Stucco
Year Built 1986
View Open,Panoramic,Trees/Woods,Water
Property Subtype Single Family Residence
Tax Year 2026
Parcel Number 1000-068-00-01-00-014-001
Waterfront Features Beach Access,Beach Front,Sound,Water Access,Waterfront
County Suffolk County
Property Type Residential
HOA No
Garage Y/N Yes
Total Rooms 14
Full Baths 4
High School Mattituck Junior-Senior High School
City Southold
Senior Community Y/N No
High School District Mattituck-Cutchogue
Carport Y/N No
Elementary School Mattituck-Cutchogue Elementary Sch
Property Attached Y/N No
Tax Annual Amount 29067
Middle/Junior High School Mattituck Junior-Senior High School
Additional Parcels Y/N Yes
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Mattituck-Cutchogue
Elementary School District Mattituck-Cutchogue
PostalCity Peconic
AttributionContact 516-214-7761
Listing Appliances Dishwasher, Dryer, Freezer, Range, Refrigerator, Washer

Interior Features

Interior Amenities First Floor Bedroom
Basement Full
Flooring Hardwood,Tile
Basement Features Full
Basement (Y/N) Yes
Fireplace Y/N Yes
Half Baths 1
Total Bedrooms 7
Total Baths 5
General Features First Floor Bedroom

Exterior Features

Parking Features Attached,Detached,Driveway
Water Source Well
Parking Features Attached, Detached, Driveway
Frontage Length 116
Waterfront Y/N Yes

Amenities

  • Foreclosure
  • Views
  • Short Sale
  • New Construction
  • Adult 55+
  • Lease To Own
  • No HOA Fees
  • Furnished
  • Primary On Main
  • Air Conditioning
  • Seller Finance
  • Green
  • Fixer Upper
  • Horse
  • Golf
  • Fireplace
  • Deck
  • Garage
  • Basement
  • Pool

Affordability Calculator

$3,786

Per Month

Based on the average sale price from the Bay Shore, NY office

  • Monthly Principal & interest $2,658
  • Monthly Property Taxes $1,062
  • Monthly Home Insurance $67
Adjust Payment Options
Agent Photo

Let's determine your purchasing power. Working with my mortgage partner, you'll have the information you need to shop for a home with confidence.

Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA, or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

Schools

Elementary School Mattituck-Cutchogue Elementary Sch
Middle School Mattituck Junior-Senior High School
High School Mattituck Junior-Senior High School

Price History

9/24/2026 Listed $6,200,000

Property vs Zip Code Average in 11958

Price
AVG $2.91M
$6.2M
Taxes
AVG $14,966
$29,067
Year Built
AVG 1942
1986

Areas That We Cover

3645 And 3651 Soundview Avenue Peconic, NY is a Single Family Home for sale at $6200000 with 4628 sqft and a lot size of 3.24 Acres Acre(s). 3645 And 3651 Soundview Avenue Peconic has 7 bedrooms, 4 baths and was built in 1986. The property's zip code is 11958 which is in Peconic, NY

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

All information deemed reliable, but not guaranteed, and should be independently verified. The real estate information and related content displayed on this site is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

Knaggs Felisme

Knaggs Felisme

Licensed Real Estate Salesperson

631-402-6473

By pressing Contact Me, you agree that Weichert® may contact you via phone about your inquiry, which may involve the use of automated means. You are not required to consent as a condition of purchasing any property, goods or services. For any other information please read our Privacy Policy