$624,900
PENDING

149 Union Ave Islip, NY 11751

Estimated payment $4,322/month

Total Views 7,144
3 Beds
1 Bath
1,539 Sq Ft
$406 Price per Sq Ft

Highlights

  • Colonial Architecture
  • Deck
  • Wood Flooring
  • Islip High School Rated A-
  • Wood Burning Stove
  • 1 Fireplace

About This Home

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!

Listing Agent

Colleen Colasacco

Daniel Gale Sothebys Intl Rlty Brokerage Phone: 631-647-7013 License #10401327448 Listed on: 02/25/2026

Daniel Gale Sothebys Intl Rlty

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $11,796

Year Built

  • Built in 1900

Lot Details

  • 12,632 Sq Ft Lot
  • Back Yard Fenced

Home Design

  • Colonial Architecture
  • Frame Construction

Interior Spaces

  • 1,539 Sq Ft Home
  • 2-Story Property
  • 1 Fireplace
  • Wood Burning Stove
  • Entrance Foyer
  • Formal Dining Room
  • Wood Flooring
  • Unfinished Basement

Kitchen

  • Electric Range
  • Microwave
  • Dishwasher
  • Stainless Steel Appliances

Bedrooms and Bathrooms

  • 3 Bedrooms
  • Bathroom on Main Level
  • 1 Full Bathroom
  • Soaking Tub

Laundry

  • Laundry in unit
  • Dryer
  • Washer

Parking

  • Oversized Parking
  • Driveway

Outdoor Features

  • Deck
  • Porch

Schools

  • Wing Elementary School
  • Islip Middle School
  • Islip High School

Utilities

  • Cooling System Mounted To A Wall/Window
  • Heating System Uses Oil
  • Electric Water Heater
  • Cable TV Available

Listing and Financial Details

  • Assessor Parcel Number 0500-396-00-05-00-014-000

Home Details

Home Type

Single Family

Est. Annual Taxes

$11,796

Year Built

Built in 1900

Lot Details

0.29 Acres

Listing Details

  • Property Type: Residential
  • Architectural Style: Colonial
  • Property SubType: Single Family Residence
  • Property Condition: Actual
  • Levels: Two
  • Year Built: 1900
  • Attribution Contact: 631-647-7013
  • Carport Y N: No
  • CurrentPrice: 624900.00
  • MlsMajorChangeType: Pending
  • CurrentPrice_By_LivingArea: 406.04288
  • ListPrice_By_LivingArea: 406.04288
  • ListPrice_By_OriginalListPrice: 1.00000
  • ListPrice_By_LotSizeAcres: 2154827.5862
  • LivingAreaSearchSqFt: 1539.00
  • CurrentPrice_By_BuildingAreaTotal: 302.32221
  • Special Features: None
  • Property Sub Type: Detached

Interior Features

  • Appliances: Dishwasher, Dryer, Electric Range, Electric Water Heater, Microwave, Refrigerator, Stainless Steel Appliance(s), Washer
  • Interior Amenities: First Floor Full Bath, Entrance Foyer, Formal Dining
  • Fireplaces: 1
  • Flooring: Wood
  • Fireplace Features: Wood Burning Stove
  • Full Bathrooms: 1
  • Basement: Bilco Door(s), Unfinished
  • Total Bedrooms: 3
  • Fireplace: Yes
  • Living Area: 1539
  • Basement YN: Yes

Exterior Features

  • Construction Materials: Frame
  • Fencing: Back Yard, Fenced, Wood
  • Pool Private: No
  • Patio and Porch Features: Deck, Porch
  • Waterfront: No

Garage/Parking

  • Garage: No
  • Parking Description: Driveway, Oversized

Utilities

  • Cooling: Wall/Window Unit(s)
  • Heating: Oil
  • Laundry Features: Inside
  • Sewer: Public Sewer
  • Utilities: Cable Available, Electricity Connected, Sewer Connected, Water Connected
  • Water Source: Public

Condo/Co-op/Association

  • Senior Community: No
  • Association: No

Schools

  • Middle School: Islip Middle School

Lot Info

  • Lot Size Acres: 0.29
  • Lot Size Sq Ft: 12632
  • Parcel Number: 0500-396-00-05-00-014-000
  • Property Attached: No
  • Additional Parcels: No

Rental Info

  • Lease Considered: No

Tax Info

  • Tax Annual Amount: 11796.2
  • Tax Year: 2026

MLS Schools

  • Elementary School: Wing Elementary School
  • High School: Islip High School
  • Middle School District: Islip

Map

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Home Values in the Area

Source: Public Records

Average Home Value in this Area





Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2024 $10,975 $33,000 $13,300 $19,700
2023 $10,975 $33,000 $13,300 $19,700
2022 $8,758 $33,000 $13,300 $19,700
2021 $8,758 $33,000 $13,300 $19,700
2020 $9,507 $33,000 $13,300 $19,700
2019 $8,758 $0 $0 $0
2018 -- $33,000 $13,300 $19,700
2017 $8,774 $33,000 $13,300 $19,700
2016 $8,737 $33,000 $13,300 $19,700
2015 -- $33,000 $13,300 $19,700
2014 -- $33,000 $13,300 $19,700
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft Prior Sale
03/23/2026 03/23/26 Pending -- -- --
03/19/2026 03/19/26 Off Market $624,900 -- --
02/25/2026 02/25/26 For Sale $624,900 +54.3% $406 / Sq Ft
11/26/2019 11/26/19 Sold $405,000 -3.6% -- View Prior Sale
09/17/2019 09/17/19 Pending -- -- --
08/20/2019 08/20/19 For Sale $420,000 -- --
Source: OneKey® MLS

Purchase History

Date Type Sale Price Title Company
Deed $405,000 None Available
Bargain Sale Deed $349,000 --
Bargain Sale Deed $370,000 --
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Open $324,041 New Conventional
Previous Owner $340,152 FHA
Previous Owner $296,000 Purchase Money Mortgage
Source: Public Records

Source: OneKey® MLS

MLS Number: 963652

OneKey® MLS

APN: 0500-396-00-05-00-014-000

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