21 Carleton Avenue, East Islip, New York image 1
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21 Carleton Avenue

East Islip, NY 11730
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$799,000 $3,368/Mo
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Bed 4

Bed

Bath 2

Bath

Acres0.15

Acre(Lot)

Welcome to East Islip, NY 11730, a beautifully upgraded two-family residence offering generous living space, modern comfort, and an exceptionally convenient location. This well-maintained property is an excellent opportunity for an owner-occupant, investor, or buyer seeking flexible living arrangements with the benefit of two separate units. The spacious first-floor unit features three comfortable bedrooms and a bright, inviting layout designed for everyday living and entertaining. The second-floor unit offers one bedroom with its own private living space, making it ideal for rental income, guests, or additional household needs. The home has been fully upgraded, allowing the next owner to move in and enjoy its many improvements. For added comfort and efficiency, the property is equipped wi th two separate boilers and five energy-efficient split HVAC units, providing flexible heating and cooling throughout the home. A large private driveway can accommodate up to six vehicles, a valuable feature for a two-family property. Conveniently located approximately 10 minutes from the Long Island Rail Road, this home provides an easy commute to New York City and surrounding Long Island communities. It is also close to major roadways, shopping malls, supermarkets, restaurants, local stores, schools, parks, and other everyday necessities. With its upgraded condition, separate living spaces, modern heating and cooling systems, generous parking, and convenient East Islip location, offers an outstanding combination of comfort, convenience, and income-producing potential. Don’t miss the opportunity to own this versatile two-family home in one of Long Island’s desirable communities. Schedule your private showing today!

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Detail Ic Property Details

Property Type : Residential Income

Price : $799,000

AD Id : 91365051

MLS Id : 1052970

Beds : 4

Lot Size : 0.15 Acre

Tax Amount : $12,517

Year Built : 1900

County : Suffolk

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Feature Features

  • Bedroom Information

    Total beds: 4

    Bathroom Information

    Total Baths: 2 Full Baths: 2

    Room Information

    Basement: Finished

  • Heating & Cooling

    Has Heating: Yes Heating: Hot Water Has Cooling: Yes Cooling: Ductless

  • Building Information

    Year Built: 1900 Building Area Total: 216 Construction Materials: Frame Private Pool: No

  • Lot Information

    Lot Size Acres: 0.15 Lot Size Square Feet: 6534

  • Listing Price Information

    Listing Price: $799000

  • Tax Information

    Parcel Number: 0500-372-00-02-00-039-000 Annual Tax: $12517

  • Parking Information

    Parking Total: 6 Driveway

    Garage Information

    Has Garage: Yes

  • School Information

    Elementary School: John F Kennedy Elementary School
    Junior High School: East Islip Middle School
    Senior High School: East Islip High School

  • Utility Information

    Natural Gas Available, Cable Connected, Electricity Connected, Natural Gas Connected

  • Location Information

    WaterSource: Public
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The data relating to real estate for sale on this website comes in part from the Internet Data exchange of OneKey MLS. IDX information is provided exclusively 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. Information deemed reliable but not guaranteed. Copyright © 2026 OneKey MLS. All Rights Reserved

ByOwner last updated this listing 09/29/2026 @ 05:09

MLS: 1052970 LISTED BY: Patricia Rodriguez, Century 21 Monticello Realty 718-804-5757 SOURCE: OneKey MLS

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