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137 Gladstone Avenue, West Islip, NY 11795 Property Information

137 Gladstone Avenue, West Islip, NY 11795 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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137 Gladstone Avenue, West Islip, NY 11795
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Address

Primary address 137 Gladstone Avenue, West Islip
Zip code 11795
County Suffolk
Municipality Islip
Parcel ID 438-3-2

Sales & Tax Overview for 137 Gladstone Avenue, West Islip

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 09/03/2019
Sale price $525,000
Arm's length
Property tax $13,728

Lot & Building Information for 137 Gladstone Avenue, West Islip

Building sqft 2,451
Building class Two Family Year-Round Residence (220)
Acreage 0.3
Year built 1954
Units 2
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district West Islip

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 137 Gladstone Avenue, West Islip

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About 137 Gladstone Avenue, West Islip

What is the year built & the total sq. ft. for 137 Gladstone Avenue, West Islip, NY 11795?

137 Gladstone Avenue, West Islip, NY 11795 was built in 1954 and has a total of 2,451 square feet.

What is the assessed value of 137 Gladstone Avenue, West Islip, NY 11795 and the property tax paid?

Assessed at $47,400, the tax amount paid for 137 Gladstone Avenue, West Islip, NY 11795 is $13,728.

When was 137 Gladstone Avenue, West Islip, NY 11795 last sold and what was the last sale price?

137 Gladstone Avenue, West Islip, NY 11795 was last sold in 09/03/2019 for $525,000.

How many residential units does this building have?

This building has 2 residential unit(s).

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
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Past Sales & Property History for 137 Gladstone Avenue, West Islip

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Purchase date Purchase price Buyer name Seller name
09/03/2019 $525,000

Title Documents for 137 Gladstone Avenue, West Islip

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Date Type Amount Party 1 Party 2 Doc image
09/03/2019 - D
10/04/2019 - R
Deed
(Bargain and sale)
06/09/2011 - D
07/15/2011 - R
Deed
           
           
           
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R: Recorded date
D: Document date

Property Taxes for 137 Gladstone Avenue, West Islip

Access detailed property tax data for 137 Gladstone Avenue, West Islip, NY 11795. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year 2025-2026
Property tax $13,728
Market value $667,606
Assessed value $47,400

Assessment History for 137 Gladstone Avenue, West Islip

Here's the assessment & property tax history for 137 Gladstone Avenue, West Islip, including the evolution of the total tax rate and corresponding property tax.

Year Market value Assessment value Total tax rate Property tax Year over year change
2024-2025 $667,606 $47,400 27.624 $13,094 +3.86%
2023-2024 $651,099 $47,400 26.598 $12,607 +1.06%
2022-2023 $572,463 $47,400 26.319 $12,475 +0.07%
2021-2022 $510,776 $47,400 26.301 $12,467 +2.12%
2020-2021 $488,660 $47,400 25.754 $12,207 -20.27%

Permits for 137 Gladstone Avenue, West Islip

The complete history of permits filed for 137 Gladstone Avenue, West Islip, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Data not available for this property.

Risk

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FEMA flood zone(s) X (See more on map)

Transportation

Access the detailed traffic volume map for 137 Gladstone Avenue, West Islip to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
South Country School 3 Public 3-5 469 0.66
Oquenock Elementary School 3 Public PK, K-5 397 0.78
Oquenock Elementary School 3 Public PK, K-5 397 0.78
Gardiner Manor School 4 Public 3-5 702 0.90
St Peters By The Sea Episcopal Day School NR Private PK, K-8 176 0.92

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Beach Street Middle School 6 Public 6-8 405 0.90
St Peters By The Sea Episcopal Day School NR Private PK, K-8 176 0.92
Bridges Academy (The) NR Private PK-8 211 1.25
The Bridges Academy NR Private PK, K-8 0 1.30
Our Lady Of Lourdes School NR Private PK-8 209 1.37

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
West Islip Senior High School 9 Public 9-12 1,262 1.09
St John The Baptist Diocesan High School NR Private 9-12 1,335 1.18
Bay Shore Senior High School 5 Public 9-12 1,910 2.19
Babylon Junior Senior High School 5 Public 7-12 703 2.19
North Babylon High School 6 Public 9-12 1,506 2.26

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 137 Gladstone Avenue, West Islip

Here are the neighbors for 137 Gladstone Avenue, West Islip.

Address Square feet Purchase date Purchase price
611 Oak Neck Rd, West Islip 10/12/2012
942 Thompson Dr, Bay Shore 1,417 08/10/2018 $365,000
47 Bardolier Ln, Bay Shore 06/08/1994
642 Oak Neck Rd, West Islip 06/06/2014 $330,000
109 Gladstone Ave, West Islip
601 Oak Neck Rd, West Islip 1,364 02/01/2018 $435,000
633 Oak Neck Rd, West Islip
135 Gladstone Ave, West Islip 12/19/1997 $137,000
640 Oak Neck Rd, West Islip
45 Bardolier Ln, Bay Shore 06/06/2025 $1
46 Bardolier Ln, Bay Shore 03/11/2022
637 Oak Neck Rd, West Islip
527 Hyman Ave, West Islip 04/16/2010
643 Oak Neck Rd, West Islip
107 Gladstone Ave, West Islip
533 Hyman Ave, West Islip
113 Gladstone Ave, West Islip 12/03/1993 $128,000
625 Oak Neck Rd, West Islip 1,624 11/17/2020 $549,500
636 Oak Neck Rd, West Islip
50 Bardolier Ln, Bay Shore 1,597 04/23/2019

Nearby ZIP Codes for 137 Gladstone Avenue, West Islip

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