When was property at 149 Union Avenue built and last sold?

The property at 149 Union Avenue was built in 1900 and last sold on Nov 27, 2019 for $405,000.

How much is this home worth?

The estimated value of the home located at 149 Union Avenue is $636,487.

What are some comparable homes to 149 Union Avenue?

There are currently no comparable homes to 149 Union Avenue.

Islip

11751

Islip

149 Union Avenue

$405,000

● House - Off Market

149 Union Avenue

Islip, NY 11751

3 Beds

1 Bath

$614,782

RealtyHop Estimate

46.38%

Since Dec 1, 2019

National-US

Primary Model

About This Property

Cozy Custom Colonial- Located South Of Montauk! Formal Entry, Sitting Room With Newly Tiled Parquet Style Floors, Customized Baseboards, Newly Installed Anderson Sliding Door & Window, Wood Burning Stove With Double Walled Pipe, Full Custom Dream Bath With Carerra Marble, His & Her Sink, Stand Up Shower, Deep Soaking Tub, Electric Panel Upgrade 200, New SS Dishwasher/Fridge, New Pergola Deck, CHARMING, TOO MANY UPDATES TO LIST! A MUST SEE! ISLIP SCHOOLS & LOW TAXES!!! COME FALL IN LOVE!, Additional information: Appearance:MINT+++,Separate Hotwater Heater:Yes

Unit Size

Days on Market

Land Size

0.29 acres

Price per sqft

Property Type

House

Property Taxes

$736

HOA Dues

Year Built

1900

Payment Calculator

Cap Rate Calculator

Last updated: 6 months ago (OneKey MLS #KEYL3157760)

Price History

Date / Event	Date	Event
May 4, 2026	Sold	Premium
Sold
Mar 20, 2026	In contract	-
In contract
Feb 20, 2026	Listed by Daniel Gale Sothebys Intl Rlty	$624,900
Listed by Daniel Gale Sothebys Intl Rlty

	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!
Nov 26, 2019	Sold	Premium
Sold
Sep 17, 2019	In contract	-
In contract
Aug 20, 2019	Listed by Keller Williams Points North	$420,000
Listed by Keller Williams Points North
Jun 13, 2011	Sold	Premium
Sold

Property Highlights

Garage

Building Info

Overview

General

Year Built: 1900

Effective Year Built: 1900
Bedroom Count: 0
Building Condition: 0
Building Quality: 0
Construction Type: 0
Building Style: 0
Exterior Walls Type: 0
Interior Walls Type: 0
Roof Shape Type: 0
Roof Cover Type: 0
Floor Cover: 0
Basement Type: 0
Basement Area: 0
Garage Type: 0
Parking Space Count: 0
Patio Type: 0
Porch Type: 0
Pool Type: 0

Dimensions

Lot Size Square Feet: 12,632

Lot Size Frontage Feet: 830
Total Building Area: 2,067
Building Area: 1,539
Building Area Measurement: L

Heating and Cooling

Air Conditioning: 0

Heating: 0
Heated Square Feet: 1,539
Heating Fuel Type: 0

Utilities

Sewer System: 0

Water Service: 0

Building

Building Type: 0

Property Class: R
Land Acres: 0000000290
Standard Land Use Code: 1001
County Land Use Code: 210
Legal Description 1: X2218365Y182631 T059H00000000

Neighborhood

School District Name: Islip Union Free School District

School Tax School District: ISLIP
Census Tract: 147402

Zoning

Zoning: B

Geography

District: 0500-3

Section: 50.39
Parcel: 0500-396.00-05.00-014.000
Block: 6000
Lot: 500.014
Municipality: ISLIP
Latitude: 40.7243
Longitude: -73.2118

Address

Full Address: 149 Union Ave

Address - House Number: 149
Address - Street Name: Union
Address - Suffix Type: Ave
State: NY
City Name: Islip
Carrier Code: C018
4-Digit Zip Code: 4314
Zip Code: 11751

Valuation

Tax

Tax Year: 2023

Tax Amount: $1,097,450
Tax Rate Code Area: 472802

Appraisal Valuation

Standard Deviation: 0.2398

Valuation Date: Feb 14, 2024
Confidence Score: 66
Final Value: 624,030
High Value: 773,683
Low Value: 474,377

Open Liens

Total Open Liens:

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Total Open Liens Amount:

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First Open Lien Mortgage Lender:

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First Open Lien Mortgage Recording Date:

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First Open Lien Mortgage Loan Amount:

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First Open Lien Mortgage Loan Due Date:

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Market Valuation

Market Total Value: $453,296

Market Land Value: $182,692
Market Improvement Value: $270,604

Assessments Valuation

Assessed Year: 2023

Assessed Total Value: $33,000
Assessed Land Value: $13,300
Assessed Improvements Value: $19,700

Sales

Current Sale Contract Date: Nov 27, 2019

Current Sale Recording Date: Dec 11, 2019
Current Sale Price:

Premium
Current Sale Document Type: 27
Previous Sale Recording Date: Jun 13, 2011
Previous Sale Contract Date: May 24, 2011
Previous Sale Amount: $349,000
Previous Sale Document Type: 12

Last Sale Mortgage

First Mortgage Lender:

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First Mortgage Transaction Date:

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First Mortgage Loan Amount:

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First Mortgage Terms:

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First Mortgage Loan Type:

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First Mortgage Loan Due Date:

Premium

Previous Mortgages

Previous Mortgage Lender:

Premium

Previous Mortgage Transaction Date:

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Previous Mortgage Loan Amount:

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Previous Mortgage Term:

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Previous Mortgage Loan Type:

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Previous Mortgage Loan Due Date:

Premium

Data used for valuation calculations is provided by RealtyHop, and other third party sources

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Comparables

About Islip

Stats & Trends

Median Asking:

$649,000

Sale Price/ft²

$403

Below Asking

0.01%

Average Days on Market

Average Home Size

1342 ft²

Average Home Age

70.9 years

Currently For Sale

35 Listings

Based on RH Advisors, Inc. calculations of home data from MLS and/or public records.

Similar Homes for Sale

Currently no similar homes around

Nearby Rentals

Unit for rent at 584 Main Street, Islip, NY, 11751

$3,150 /mo

1 Bed
1 Bath
620 ft²

584 Main Street #1, Islip, NY, 11751 Listing by Sean Darbyshire RENE

Unit for rent at 2 Somerset Avenue, East Islip, NY, 11730

$1,900 /mo

Studio
1 Bath
198 ft²

2 Somerset Avenue #APT3, East Islip, NY, 11730 Listing by Jamie C. Winkler

Unit for rent at 407 East Main Street, Bay Shore, NY, 11706

$2,445 /mo

1 Bed
1 Bath
600 ft²

407 East Main Street #4075B, Bay Shore, NY, 11706 Listing by Michelle Holmes

Rentals Near You

Click here to view more rentals in the neighborhood.

Last Updated: 6 months ago
Data Source: OneKey MLS

149 Union Avenue

About This Property

Price History

Property Highlights

Building Info

Overview

Building

Neighborhood

Zoning

Geography

Valuation

Comparables

About Islip

Stats & Trends

Similar Homes for Sale

Nearby Rentals

Frequently Asked Questions