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$6,200,000
13 Days On Site

3645 and 3651 Soundview Avenue
Peconic, NY 11958

For Sale|Single Family Residence|Active
7
Beds
5
Total Baths
4
Full Baths
1
Partial Bath
4,628
SqFt
$1,340
/SqFt
1986
Built
County:
Suffolk
Listing courtesy of Compass Greater NY LLC nicholas.liappas@compass.com

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3645 and 3651 Soundview Avenue3645 and 3651 Soundview Avenue3645 and 3651 Soundview Avenue3645 and 3651 Soundview Avenue
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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.

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Listing Snapshot
Price 
$6,200,000
Days On Site 
13 Days
Bedrooms 
7
Inside Area (SqFt) 
4,628 sqft
Total Baths 
5
Full Baths 
4
Partial Baths 
1
Lot Size 
3.24 Acres
Year Built 
1986
MLS® Number 
1049858
Status 
Active
Property Tax 
$29,067
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
2 weeks agoListing first seen on site
2 weeks agoListing updated with changes from the MLS®
General Features
Acres 
3.24
Attached Garage 
Yes
Cross Street 
Mill Lane
Garage 
Yes
Garage Spaces 
3
Parking 
AttachedDetachedDriveway
Property Sub Type 
Single Family Residence
Sewer 
Cesspool
Style 
Colonial
Utilities 
Electricity ConnectedWater Connected
Water Source 
PublicPrivateWell
Interior Features
Appliances 
DishwasherDryerFreezerRangeRefrigeratorWasher
Basement 
Full
Cooling 
Central AirDuctlessMulti Units
Fireplace 
Yes
Flooring 
HardwoodTile
Heating 
ElectricHeat PumpOil
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Exterior Features
Construction Details 
FrameStucco
Frontage 
116
Lot Features 
Waterfront
View 
PanoramicTrees/WoodsWater
Waterfront Features 
Beach AccessBeach FrontWaterfrontWaterfront Access
Waterview 
PanoramicTrees/WoodsWater
Community Features
School District 
Mattituck-Cutchogue
Schools
School District
Mattituck-Cutchogue
Elementary School
Mattituck-Cutchogue Elementary Sch
Middle School
Mattituck Junior-Senior High School
High School
Mattituck Junior-Senior High School
Listing courtesy of Compass Greater NY LLC nicholas.liappas@compass.com


Based on information submitted to the MLS GRID as of 2026-10-08 09:51 AM EDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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