149 Union Avenue, Islip, NY 11751
SOLD
MAY 4, 2026

$699,900

Trulia Estimate
  • 3 Beds
  • 1 Bath
  • 1,539 sqft (on 0.29 acres)

149 Union Avenue, Islip, NY 11751

Est. Refi. Payment $4,845/mo*
Refinance Your Home
Currently Off Market - Sold May 4, 2026 for $685,000 (10% above list price)

Home Value

Trulia Estimate
$700K
Since last month
Increased$3K (+0.4%)
Since last year
Increased$45K (+6.9%)
Since last sale
Increased$17K (+2.4%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +91% in the last 10 years
MonthEstimated value
2026
September 2026$702K
August 2026$699K
July 2026$695K
June 2026$689K
May 2026$688K
April 2026$664K
March 2026$659K
January 2026$653K
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
39 Shebar Drive, Islip, NY
0.19
Single-Family Home
$855,000
07/28/26
3
2
1,900
71 Willow Avenue, Islip, NY
0.20
Single-Family Home
$800,000
02/02/26
3
1.5
2,172
191 Smith Avenue, Islip, NY
0.19
Single-Family Home
$633,500
04/09/26
2
1
1,112
110 Saint Marks Lane, Islip, NY
0.23
Single-Family Home
$750,000
12/22/25
3
2
2,628
117 Union Avenue, Islip, NY
0.09
Single-Family Home
$867,000
03/02/26
3
2.5
2,415
24 Bay 3rd, Islip, NY
0.32
Single-Family Home
$595,000
05/27/26
3
1
1,176
57 Wave Crest Drive, Islip, NY
0.26
Single-Family Home
$765,000
03/27/26
4
1.5
1,358
11 Doxsee Place, Islip, NY
0.47
Single-Family Home
$610,000
02/24/26
3
1
2,252
146 Smith Avenue, Islip, NY
0.19
Single-Family Home
$765,000
11/19/25
3
2.5
1,800

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
174 S Bay Avenue, Islip, NY 11751
0.04
$1,126,500
4
2.5
2,961
Off Market
161 S Bay Avenue, Islip, NY 11751
0.06
$854,900
3
2
1,950
Off Market
148 Monell Avenue, Islip, NY 11751
0.11
$896,100
6
2
-
Off Market
117 Union Avenue, Islip, NY 11751
0.09
$867,000
3
2.5
2,415
Recently Sold
136 Monell Avenue, Islip, NY 11751
0.12
$811,700
5
3
2,212
Off Market
11 Shebar Drive, Islip, NY 11751
0.09
$1,070,800
4
3
2,600
Off Market
17 2nd Street, Islip, NY 11751
0.13
$869,800
3
2
1,486
Off Market
110 S Bay Avenue, Islip, NY 11751
0.11
$939,700
4
3
2,734
Off Market
155 Smith Avenue, Islip, NY 11751
0.16
$690,000
4
2
2,100
Recently Sold
34 Shebar Drive, Islip, NY 11751
0.13
$90,000
3
2
1,348
Recently Sold
13 1st Street, Islip, NY 11751
0.16
$725,500
3
2.5
1,342
Off Market

Local Information

  • Map ViewExplore the area around 149 Union Avenue.
  • Schools3 Elementary Schools1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1900
0.29 acre lot
1,539 sqft
$445/sqft
Open Parking

About this House

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!
149 Union Avenue, Islip, NY 11751 is a 3 bedroom, 1 bathroom, 1,539 sqft single-family home built in 1900. It last sold for $685,000 on May 4, 2026 (10% above the $624,900 asking price). This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $699,900, with a rent estimate of $3,788/month.
Last check for updates: about 13 hours ago
Listed by Colleen K. Colasacco, (631) 748-7138
Daniel Gale Sothebys Intl Rlty, (631) 647-7013
Bought with: Mary M. Macaluso, (516) 410-6193, Compass Greater NY LLC, (516) 517-4866
Source: OneKey® MLS as distributed by MLS GRID, MLS#963652

Home Details for 149 Union Avenue

Interior Features

Interior Details
Basement: Bilco Door(s),UnfinishedNumber of Rooms: 8
Beds & Baths
Number of Bedrooms: 3Number of Bathrooms: 1Number of Bathrooms (full): 1
Dimensions and Layout
Living Area: 1539 Square Feet
Appliances & Utilities
Utilities: Cable Available, Electricity Connected, Sewer Connected, Water ConnectedAppliances: Dishwasher, Dryer, Electric Range, Electric Water Heater, Microwave, Refrigerator, Stainless Steel Appliance(s), WasherDishwasherDryerLaundry: InsideMicrowaveRefrigeratorWasher
Heating & Cooling
Heating: OilHas CoolingAir Conditioning: Wall/Window Unit(s)Has HeatingHeating Fuel: Oil
Fireplace & Spa
Number of Fireplaces: 1Has a Fireplace
Gas & Electric
Has Electric on Property
Windows, Doors, Floors & Walls
Flooring: Wood
Levels, Entrance, & Accessibility
Levels: TwoFloors: Wood

Exterior Features

Exterior Home Features
Patio / Porch: Deck, PorchFencing: Back Yard, Fenced, WoodNo Private Pool
Parking & Garage
No CarportNo GarageHas Open ParkingParking: Driveway,Oversized
Water & Sewer
Sewer: Public Sewer

Days on Market

Cumulative Days on Market: 22

Property Information

Year Built
Year Built: 1900
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence, ResidentialArchitecture: Colonial
Building
Not Attached Property
Property Information
Condition: ActualParcel Number: 0500396000500014000

Price & Status

Price
List Price: $624,900Price Per Sqft: $445/sqft
Status Change & Dates
Off Market Date: Thu Mar 19 2026

Active Status

MLS Status: Sold

Location

Direction & Address
City: Islip
School Information
Elementary School: Wing Elementary SchoolJr High / Middle School: Islip Middle SchoolHigh School: Islip High SchoolHigh School District: Islip

Building

Building Area
Building Area: 2067 Square Feet

Community

Not Senior Community

HOA

No HOA

Lot Information

Lot Area: 0.29 acres

Listing Info

Special Conditions: None

Offer

Listing Agreement Type: Exclusive Right To Sell

Miscellaneous

BasementMls Number: 963652Attic: ScuttleAttribution Contact: 631-647-7013Showing Advance Notice: 24Showing Requirements: 24 Hour Notice, Pet(s) on Premises, Showing Service

Price and Tax history

DateEventPrice
May 4, 2026
Source: OneKey® MLS as distributed by MLS GRID #963652
Sold
$685,000
Mar 25, 2026
Source: OneKey® MLS as distributed by MLS GRID #963652
Pending
$624,900
Mar 19, 2026
Source: OneKey® MLS as distributed by MLS GRID #963652
ListingRemoved
$624,900
Feb 25, 2026
Source: OneKey® MLS as distributed by MLS GRID #963652
Listed For Sale
$624,900
Nov 26, 2019
Source: OneKey® MLS as distributed by MLS GRID #L3157760
Sold
$405,000

Market trends in Islip

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
43
7MoM

Around this home

What Locals Say about Islip

At least 118 Trulia users voted on each feature.

  • 90 % Say parking is easy

  • 90 % Say it's dog friendly

  • 88 % Say car is needed

  • 86 % Say there's holiday spirit

  • 85 % Say yards are well-kept

  • 75 % Say people would walk alone at night

  • 73 % Say kids play outside

  • 65 % Say neighbors are friendly

  • 64 % Say it's quiet

  • 63 % Say it's walkable to restaurants

  • 62 % Say streets are well-lit

  • 62 % Say they plan to stay for at least 5 years

  • 59 % Say there are sidewalks

  • 59 % Say it's walkable to grocery stores

  • 59 % Say there's wildlife

  • 49 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Michellereid2323
    "Family-oriented neighborhood. Main Street is charming, walkable, and dotted with boutiques, cafes, and diners."
    0
    Flag
  • Matt Classie
    "Street fairs, events at Brookwood Hall during holidays. Theres lots to do in the town of Islip. Bats & Brews is a great event."
    0
    Flag
  • Yen160107
    "I have kids that play in the front yard and they step on the dog feces that they left behind. Also I have signs that say “kids at play” but they do not care"
    0
    Flag
  • Trulia User
    "The drive is horrible and the traffic which is 300 feet from your front door is deafening! A ten lane super hwy and that’s what you wake up to at 4:30 am every day ! Or you can take the train a mile away which you can also here every morning blasting it’s way to islip train station . "
    0
    Flag
  • Trulia User
    "Well celebrate almost all the events soccer games good school very friendly neighborhoods good shopping center "
    1
    Flag
  • Jamal G.
    "this neighborhood is a great place to live there are restaurants in the mall nearby good schools and they are also close"
    14
    Flag
  • Stephen B.
    "The taxes are very high here for the school. Bay Shore schools are just as good or better and the taxes are much lower. "
    9
    Flag
  • Michael .
    "Good! I work in the city and take the LIRR. The islip station has free parking and plenty of spaces."
    1
    Flag
  • Monmona
    "you need to have a car to commute around. around. if you live close enough to the Long Island Railroad, then you can walk to the station and take the train from there."
    1
    Flag
  • Fldsetter
    "I grew up here and actually bought my childhood home back after living in another part of the country . Beaches are close , most folks keep there homes well maintained . There are lot of children here and the schools are second to none . I wish the town would replace the roads here , and take better care of there pubic areas ! But let the young folks moving in fight that fight ! "
    1
    Flag
  • Djhafner132
    "5 min to train station.the neighbors are friendly.i am an avid fisherman and two fishing piers are less than a mile away.the streets are well treed and maintained "
    0
    Flag
  • Djhafner132
    "I lived here since 1973.The homes are well kept and neighbors are friendly.the town dock is an easy walk with great fishing the streets are well maintained.All in all a great place to live"
    0
    Flag
  • Djhafner132
    "Parades block parties great fishing close by.great south of montauk location.Great place to raise a family "
    0
    Flag
  • Ricktssf
    "I work locally, so I can walk to work. the train station to NYC is only 4 blocks away. easy commute on the train. "
    2
    Flag
  • G.Greco
    "I've made Islip my home since 1980. Yards are well kept, the streets are maintained, paved and cleaned regularly. The school district is good. It's a good place to live and raise a family. This area south of Montauk is very desirable"
    16
    Flag
  • Tannuramees
    "parades, fairs, shops close by, farmers market, good schools, nice neighborhood, school events, town events"
    1
    Flag
  • Catherine M.
    "I have lived here for 18 years and for the most part it’s a good area. I am not a huge fan of the school district but it’s not horrible either ."
    11
    Flag
  • Stefbartoli
    "Dog friendly neighborhood! People walk their dogs around regularly. Neighbors look out for each other’s pets as well. "
    1
    Flag
  • Tyase930
    "Quiet respectful neighbors. Walking distance to stores. Lots of new businesses and new development s."
    0
    Flag
  • Tony H.
    "I live in this neighborhood for 2 years so far people are very friendly, there's always parking, people walk their dogs at night and exercise regularly. It's pretty cool !!!"
    0
    Flag
  • Fldsetter
    "Crappy roads / rats / compact floresant lights instead of LED ( someone got paid off ) no trees left due to disease , and the town is not planting any ! Highway noise 10 lanes now on Sunrise HWY - RT27 . No plans for a sound wall ??? I guess we are lower class here in Islip . Airplane and helicopters all day and night fly over head ,, isn’t there a bay or ocean they can fly over then go straight up Lakeland Blvd to the airport ???? I will eave as soon as I find a house elsewhere and not in NY "
    0
    Flag
  • Ricktssf
    "I'm 17 years living in Islip. a little great Hamlet along the great South Bay. Town of Islip is much larger, but this is a Suburban area. "
    0
    Flag

LGBTQ Local Legal Protections

Based on information submitted to the MLS GRID as of 2026-09-22 00:18:03 PDT All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information

Frequently asked questions about 149 Union Avenue

  • What is 149 Union Avenue estimated to be worth?
    Trulia's estimated value for 149 Union Avenue in Islip, NY is $699,900.
  • What is the price history for 149 Union Avenue?
    149 Union Avenue in Islip, NY last sold for $685,000 in May 2026.
  • Is Islip a buyer's or seller's market?
    Islip is currently a seller's market, based on recent for-sale activity.
  • What do residents say about Islip?
    Residents describe Islip, NY as easy to park in, dog-friendly, and well-kept. Most residents say you need a car. See recently sold homes in Islip, NY.
  • Does 149 Union Avenue have air conditioning?
    Yes, 149 Union Avenue in Islip, NY has air conditioning.
  • Does 149 Union Avenue have laundry facilities?
    Yes, 149 Union Avenue in Islip, NY has in-unit laundry.

Explore by feature - Air Conditioning

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