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    Seaford, NY Duplexes for Sale

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    Massapequa, NY Wantagh, NY Bellmore, NY
    Fully Renovated Two-Family Residence
    $1,500,000
    0.13 Acres
    Fully Renovated Two-Family Residence

    3914 Waverly Avenue, Seaford, NY 11783

    Turnkey two-unit property with separate entrances, private yard space, and a finished basement on a corner lot.
    • Fully renovated legal two‑family home on a 51 x 111 corner lot with separate entrances for both units
    • 5 bedrooms and 3 full baths total, including a finished basement with private exterior access
    • First‑floor unit: 3BD/1BA with eat‑in kitchen, recessed lighting, hardwood flooring, and in‑unit washer/dryer hookup
    • Second‑floor unit: 2BD/1BA with updated kitchen and bath, recessed lighting, and in‑unit washer/dryer hookup
    • New roof, siding, windows, insulation, electrical, plumbing, pavers, and heating/cooling systems; central air and forced‑air electric
    Updated: Jun 26
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    Waterfront Duplex in South Seaford
    $1,125,000
    0.15 Acres
    Waterfront Duplex in South Seaford

    2850 Shore Road, Seaford, NY 11783

    Unique waterfront duplex, ideal for investment or multi-generational living.
    • Legal two‑family waterfront duplex with canal access in South Seaford
    • First unit: renovated 3‑bedroom, 2.5‑bath with primary suite, updated kitchen and baths, and deck off the dining room
    • Second unit: tenant occupied 2‑bedroom, 2.5‑bath with primary suite and full bath, plus separate laundry
    • Each unit has its own private driveway and separate utilities
    • Public utilities available: public water and public sewer
    Updated: Jun 8, 2025
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    Based on your search, we've compiled 6 Potential Opportunities for your consideration. Besides 2 Active listings in Seaford, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    Freeport Two-Family Home with Garage
    $749,000
    550 SF
    Freeport Two-Family Home with Garage

    Updated two-family home with detached garage, ideal for investors.

    261 Rutland Road, Freeport, NY 11520

    View details
    Legal Two-Family Colonial Home
    $849,888
    0.36 Acres
    Legal Two-Family Colonial Home

    Updated two-bedroom units with basement access, a partially finished loft, and ample parking on an oversized lot.

    137 Melrose Avenue, Massapequa, NY 11758

    View details
    Upgraded Colonial with Solar Panels
    $1,375,000
    0.18 Acres
    Upgraded Colonial with Solar Panels

    Modern, versatile home with pool, solar, and income potential.

    140 Baltimore Avenue, Massapequa, NY 11758

    View details
    Freeport Multifamily Property For Sale
    $599,111
    0.18 Acres
    Freeport Multifamily Property For Sale

    Multifamily property in Freeport, NY, with month-to-month leases.

    73 Raynor Street, Freeport, NY 11520

    View details

    Seaford, NY Duplexes Market Trends and Statistics

    Explore 2 duplexes for sale in Seaford, NY on our real estate platform. These investment opportunities span a total of 0 square feet of properties for sale, with an estimated market value of $2,625,000.

    Sale prices for duplexes in Seaford, NY start at $1,125,000, averaging $1,312,500, and reaching up to $1,500,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Apartment buildings 1
    Duplexes 1

    Demographics Overview

    Population 22K
    Population Growth (5Y) +1.5%
    Median Household Income $164,128
    College Educated 66.0%

    High-Yield Neighborhoods for Investment

    Identify Seaford submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    11783 $1.1M

    Taxes & Financing

    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Nassau County

    New Delisted

    Total CRE Inventory on Market (SF)

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