21 Carleton Ave

East Islip NY 11730

216 sq. ft.

6534 sq. ft.

Duplex

Last sold for $785,000

Patricia Rodriguez, last sold this property on 28 October 2026 after 38 days on market.

Overview

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!

Features

4 bedrooms

2 bathrooms

6 carspaces

1 garage space

216 sq. ft. floor area

6534 sq. ft. lot size

Duplex

Estimated Value

We need at least 3 similar 4 bedroom duplexes sold in East Islip over the last 12 months.

Property history for 21 Carleton Ave

2026

Sold

$785,000

28 Oct 2026 by Patricia Rodriguez, of Century 21 Monticello Realty

2021

Sold

$490,000

18 Jun 2021 by Darren Sebor, of Coach Real Estate Assoc Inc

2019

Sold

$375,000

23 May 2019 by Darren Sebor, of Coach Real Estate Assoc Inc

Happy sellers in East Islip

We have insufficient information to provide an overview of customer satisfaction for East Islip. Viewing the agent profiles, reviews and sales for East Islip can provide insights for this location.