9 Duffin Avenue

West Islip NY 11795

2578 sq. ft.

10890 sq. ft.

Single-Family

Last sold for $750,000

Julia Johnson, last sold this property on 05 January 2026 after 59 days on market.

Overview

West Islip Gem! Beautiful Split-Level home w/side apartment & spacious backyard. This inviting home offers a perfect blend of comfort, functionality and charm. The main level features a bright and open layout with a kitchen, dining room & cozy den, ideal for everyday living and entertaining. Upstairs, the 2nd level offers 3 comfortable bedrooms and a full bath, providing ample space for family or guests. The upper level showcases a primary bedroom suite, a fifth bedroom and another full bath, creating a private retreat with room to grow. Adding exceptional versatility, this home includes a side one-bedroom apartment - perfect for extended family, guests or rental income potential. Enjoy outdoor living in the large backyard, complete w/wood decking & a gazebo ideal for gatherings, barbecues or relaxing in your own private oasis. This unique split-level design combines spacious living with added privacy & income opportunity - truly a home that has it all!

Features

6 bedrooms

3 bathrooms

2578 sq. ft. floor area

10890 sq. ft. lot size

Single-Family

Estimated Value

Based on this property and similar 6 bedroom single-family properties sold in West Islip over the last 12 months, the estimated median property value of 9 Duffin Avenue is $895k.

Median value

$895k

Estimated value range

$675k - $3.6m

Median days on market

Estimated value trend

-57%

decrease over the last 12 months

Average days on market is based on recent, comparable sales in West Islip. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 9 Duffin Avenue

2026

Sold

$750,000

05 Jan 2026 by Julia Johnson, of Eric G Ramsay Jr Assoc LLC

Happy sellers in West Islip

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