Pending Duplex MLS# 1052970

21 Carleton Avenue

East Islip, NY 11730

$799,000

onekey_mls logo

Listing Office

Officeonekey_mls logoCentury 21 Monticello Realty

About 21 Carleton Avenue

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 with 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!

Property details

Property

Type
duplex
Year built
1900
Living area
216 sqft
Price / sqft
$3,699
Lot
0.15 ac
List date
Sep 18, 2026

Schools

District
East Islip Union Free School District

Location

School district
East Islip Union Free School District

Ask about this property

Questions on 21 Carleton Avenue, East Islip, NY 11730, or want to see it in person?

Listing information is provided by the participating MLS / IDX program and is deemed reliable but not guaranteed. All information should be independently verified. Equal Housing Opportunity.