149 Union Avenue

Islip NY 11751

2067 sq. ft.

12632 sq. ft.

Single-Family

Last sold for $685,000

Colleen Colasacco, last sold this property on 04 May 2026 after 68 days on market.

Overview

Charming Colonial in the heart of Historic Islip, south of Montauk Highway. Combining classic character with thoughtful updates, including a new roof, upgraded 200amp electric, and gorgeous full bath with soaking tub & large separate shower. Enjoy a spacious dining room with a cozy wood burning stove, bright and inviting living room, eat-in kitchen with SS appliances flowing to a den with sliders to a huge, fenced backyard with IGS, perfect for relaxing or entertaining. Don't miss this rare opportunity!

Features

3 bedrooms

1 bathroom

2067 sq. ft. floor area

12632 sq. ft. lot size

Single-Family

Estimated Value

Based on this property and similar 3 bedroom single-family properties sold in Islip over the last 12 months, the estimated median property value of 149 Union Avenue is $632k.

Median value

$632k

Estimated value range

$450k - $1.27m

Median days on market

Estimated value trend

increase over the last 12 months

Average days on market is based on recent, comparable sales in 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 149 Union Avenue

2026

Sold

$685,000

04 May 2026 by Colleen Colasacco, of Daniel Gale Sothebys Intl Rlty

2019

Sold

$405,000

26 Nov 2019 by Tammy Gatto, of Signature Premier Properties

Happy sellers in Islip

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