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    Two-Family Waterfront Residence Title is generated by Realmo AI

    20 Greenwich Avenue, Bayville, NY 11709

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    Claim this Listing
    For Sale
    $1,798,000

    MULTI_FAMILY - Contemporary - Bayville, NY

    Property size:
    3,550 SF
    Lot size:
    0.25 Acres
    Price / SF:
    $506/SF
    Added:
    May 12, 2026
    Days on Market:
    56
    Last Refresh:
    Jul 6 at 3:06 am

    Property Features for 20 Greenwich Avenue

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Bedrooms
    5
    Bathrooms
    4
    Rooms
    Bedroom 4, Bathroom 2, Bedroom 3, Bedroom 1, Bathroom 3, Dining Room, Bathroom 4, Bedroom 5, Bathroom 1, Bedroom 2
    Parking
    6
    Parking features
    Tandem, Carport, Driveway
    Security features
    Security Lighting
    Spa
    1
    Window features
    Double Pane Windows, Skylight(s)
    Patio and Porch features
    Deck
    Interior features
    First Floor Bedroom, First Floor Full Bath, Breakfast Bar, Cathedral Ceiling(s), Ceiling Fan(s), Chandelier, Chefs Kitchen, Crown Molding, Entrance Foyer, Formal Dining, Granite Counters, High Speed Internet, His and Hers Closets, Kitchen Island, Marble Counters, Natural Woodwork, Open Floorplan, Open Kitchen, Original Details, Primary Bathroom, Sound System, Speakers, Storage, Walk-In Closet(s), Washer/Dryer Hookup, Wired for Sound
    Exterior features
    Awning(s), Balcony, Rain Gutters
    Fencing
    Chain Link
    Fireplace
    1
    Standard status
    Active
    APN
    2401-28-011-00-0053-0
    Lot size
    0.25 Acres

    Taxes and HOA fees

    Tax Year
    2026
    Tax Annual Amount
    21931

    Utilities

    Sewer type
    Septic Tank, Cesspool
    Heating system
    Hot Water(Heating)
    Cooling system
    Central Air
    Water source
    Public
    Water front features
    Beach Front, Waterfront, Beach Access
    Water front
    1

    Building Details

    Year built
    1948
    Number of units
    2
    Flooring type
    Tile - Ceramic, Wood
    Building materials
    Stone, Vinyl Siding
    Architectural style
    Contemporary
    Additional Structures
    Storage

    We can help!

    Contact an agent
    Derek J. Greene

    Listing agent Derek J. Greene License #SBR004802

    Listing office Greene Realty Group 4 Field Way, Worcester, NY

    Listing date May 12, 2026

    MLS# 998376 Listing URL

    Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    HighLights

    • Approximately 80 ft of private deeded beach frontage to the mid‑high tide line with beach access and beach‑front waterfront location
    • Two‑family residence with about 3,550 sq ft of interior living space on a quarter‑acre of beachfront property
    • 5 bedrooms and 3.5 bathrooms across two apartments—flexible setup for extra income or multi‑generational use
    • On‑site parking for 6 cars, including covered parking for at least 4 cars
    • Dual central air units, dual hot water heaters, and a waterproofed upper‑level boiler room, plus a comprehensive security system with remote front gate
    • New roof (complete tear‑off) installed Feb 2013 with a 15‑year warranty (materials and labor)

    Overview

    This contemporary two-family waterfront residence is configured as two apartments within a versatile layout. The home offers five bedrooms and 3.5 bathrooms total, with spaces designed for separate living while maintaining a cohesive property setup. Exterior amenities include covered sitting areas and three remote-operated awnings. On the infrastructure side, the property includes a waterproofed upper-level boiler room, dual central air units, dual hot water heaters, and a comprehensive security system with a remote front gate, along with soundproofing between the units. A roof replacement was completed as a complete tear-off in February 2013, with a 15-year warranty for the materials and labor.

    Situated at 20 Greenwich Avenue in Bayville, the property features approximately 80 feet of private deeded beach frontage extending to the mid-high tide line. The outdoor setting is described as beachfront privacy, and the location is noted as being near the Sound side beach and playground on the corner, adjacent to historic Walls Wharf and within close distance to the Crescent Beach Club.

    The property is set up for flexibility, whether as an owner-occupied two-family home or for generating rental income through the secondary unit, with short-term stays permitted in the secondary unit when the owner occupies, per local code. Parking includes on-site space for six cars, with covered parking for at least four. A Greenwich Avenue Property Owners Association is referenced as village enforced for permit-only resident parking, with no mandatory dues, and includes access to a private beach next to the home’s deeded frontage.
    Property Profile Location Intelligence

    Current Use by Public Records

    Duplexes

    Suggested Use

    Law Firm Real Estate Agency Hair Salon Spa & Massage Center Restaurant Dental Office Nail Salon Auto Repair Shop Pharmacy Kitchen & Bath Showroom

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    Bayville
    County
    Nassau
    State
    New York
    Longitude
    -73.543531
    Latitude
    40.909374

    FAQs

    What type of property is this?
    Duplex - Two-family property with deeded beach frontage, parking, and modern building systems for owner-occupant or income use.
    Where is this duplex located?
    The property is located at 20 Greenwich Avenue Bayville, NY.
    What is the asking price?
    The asking price for this property is $1,798,000.
    What are key features of this property?
    This property features: Approximately 80 ft of private deeded beach frontage to the mid‑high tide line with beach access and beach‑front waterfront location; Two‑family residence with about 3,550 sq ft of interior living space on a quarter‑acre of beachfront property; 5 bedrooms and 3.5 bathrooms across two apartments—flexible setup for extra income or multi‑generational use
    More about this property
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