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$1,988,000
180 Days On Site

20 Greenwich Avenue
Bayville, NY 11709

For Sale|Single Family Residence|Active
5
Beds
4
Total Baths
3
Full Baths
1
Partial Bath
3,558
SqFt
$559
/SqFt
1948
Built
County:
Nassau
Listing courtesy of Douglas Elliman Real Estate lmann@elliman.com

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(516) 399-9474
20 Greenwich Avenue20 Greenwich Avenue20 Greenwich Avenue20 Greenwich Avenue
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OPEN HOUSE BY APPOINTMENT ONLY Call agent. Sunrise, Sunset — Your Beachside Oasis Awaits Step outside your living room onto one of Long Island Sounds highest scoring beaches for water quality. Wake up to beautiful water views and wind down with stunning sunsets from your private bedroom balcony in this spacious and versatile beach home. With 5 bedrooms, 3.5 baths, and over 3,500 square feet. This LEGAL TWO-FAMILY duplex offers incredible FLEXIBILITY — perfect for a large family, MULTI-GENERATIONAL living, a dedicated guest suite with its own full kitchen, washer, and dryer, or a legal accessory apartment. Inside, enjoy a blend of comfort and style with ceramic flooring on the first level, hardwood upstairs, recessed lighting throughout, and multiple skylights that flood the space with natural light. A rebuilt stone front facade, first layer roof (2012) and emergency generator add both charm and peace of mind. Step outside to a private side patio with a new hot tub, built-in bar refrigerator, and cooler — ideal for entertaining. The expansive deck and patio both feature retractable awnings, and all outdoor furniture is included. And, this is one of the only homes which has a deeded beach to the median high tide water line. This is more than a home — it’s a lifestyle. Whether you're watching the sunrise with your morning coffee or enjoying evening cocktails as the sun sets, this property offers a rare opportunity to live the beach life to the fullest.

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Listing Snapshot
Price 
$1,988,000
Days On Site 
180 Days
Bedrooms 
5
Inside Area (SqFt) 
3,558 sqft
Total Baths 
4
Full Baths 
3
Partial Baths 
1
Lot Size 
0.25 Acres
Year Built 
1948
MLS® Number 
848638
Status 
Active
Property Tax 
$26,718.65
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
6 months agoListing first seen on site
6 months agoListing updated with changes from the MLS®
General Features
Acres 
0.25
Cross Street 
Bayville Ave.
Garage 
Yes
Garage Spaces 
3
Levels 
Two
Parking Spaces 
6
Property Condition 
Updated/Remodeled
Property Sub Type 
Single Family Residence
Sewer 
Septic Tank
Style 
ColonialContemporary
Utilities 
Natural Gas AvailableCable ConnectedElectricity ConnectedNatural Gas ConnectedWater Connected
Water Source 
Public
Interior Features
Appliances 
RefrigeratorDishwasherDryerGas RangeOvenStainless Steel Appliance(s)Washer
Cooling 
Central Air
Fireplace 
Yes
Fireplace Features 
GasWood Burning
Fireplaces 
2
Flooring 
Ceramic TileWood
Heating 
Baseboard
Interior 
Breakfast BarEat-in KitchenEntrance FoyerHigh CeilingsOpen FloorplanSound SystemStorageWalk-In Closet(s)
Laundry Features 
Multiple Locations
Spa 
Yes
Bathroom 1 
Level - FirstDescription - Part of guest suite/rental unit
Bathroom 2 
Level - FirstDescription - Powder room
Bathroom 3 
Level - Second
Bedroom 1 
Level - FirstDescription - Part of guest suite/rental unit
Bedroom 2 
Level - Second
Bedroom 3 
Level - SecondDescription - With balcony overlooking Long Island Sound
Bedroom 4 
Level - SecondDescription - With balcony overlooking Long Island Sound
Dining Room 
Level - FirstDescription - Brick gas fireplace which can be converted to wood burning and windows to the beach
Kitchen 
Level - FirstDescription - Chef's kitchen with breakfast bar, Viking range, wine cooler
Laundry 
Level - FirstDescription - There are two. One is in the guest/rental suite
Living Room 
Level - FirstDescription - Open concept to kitchen. Gas fireplace. Windows to the beach. Sliders to deckto deck
Primary Bathroom 
Level - Second
Primary Bedroom 
Level - SecondDescription - With balcony overlooking Long Island Sound
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Exterior Features
Construction Details 
Frame
Exterior 
Awning(s)Balcony
Fencing 
Fenced
Frontage 
85 feet
Lot Features 
Waterfront
Patio And Porch 
DeckPatio
Spa 
Yes
View 
Water
Waterfront Features 
Beach FrontWaterfront Access
Waterview 
Water
Community Features
Accessibility Features 
Accessible BedroomAccessible Central Living AreaAccessible Common AreaAccessible EntranceAccessible Kitchen
MLS Area 
Bayville
School District 
Locust Valley
Schools
School District
Locust Valley
Elementary School
Bayville Elementary School
Middle School
Locust Valley Middle School
High School
Locust Valley High School
Listing courtesy of Douglas Elliman Real Estate lmann@elliman.com


Based on information submitted to the MLS GRID as of 2025-10-21 01:20 PM 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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