| Primary address | 123 Gladstone Avenue, West Islip |
| Zip code | 11795 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 438-3-9 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 05/06/1998 |
| Sale price | $143,000 |
| Arm's length | Register |
| Current property tax | $9,715 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.3 |
| Zoning district | Register |
| School district | West Islip |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
Assessed at $36,400, the tax amount paid for 123 Gladstone Avenue, West Islip, NY 11795 is $10,542.
When was 123 Gladstone Avenue, West Islip, NY 11795 last sold?123 Gladstone Avenue, West Islip, NY 11795 was last sold in 08/10/2010.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 123 Gladstone Avenue, West Islip, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 05/06/1998 | $143,000 | Register | Register |
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 123 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 |
| Base tax | $10,543 |
| Current property tax | $9,715 |
| Market value | $512,676 |
| Assessed value | $36,400 |
Here's the assessment & property tax history for 123 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 | $512,676 | $36,400 | 27.624 | $10,055 | +3.86% |
| 2023-2024 | $500,000 | $36,400 | 26.598 | $9,682 | +1.06% |
| 2022-2023 | $439,613 | $36,400 | 26.319 | $9,580 | +0.07% |
| 2021-2022 | $392,242 | $36,400 | 26.301 | $9,574 | +2.12% |
| 2020-2021 | $375,258 | $36,400 | 25.754 | $9,374 | -23.63% |
The complete history of permits filed for 123 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.
Create a free account to unlock extended information for 123 Gladstone Avenue, West Islip, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
Access the detailed traffic volume map for 123 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.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| South Country School | 3 | Public | 3-5 | 469 | 0.64 |
| Oquenock Elementary School | 3 | Public | PK, K-5 | 397 | 0.84 |
| Oquenock Elementary School | 3 | Public | PK, K-5 | 397 | 0.84 |
| St Peters By The Sea Episcopal Day School | NR | Private | PK, K-8 | 176 | 0.86 |
| St Peters By The Sea Episcopal Day School | NR | Private | PK, K-8 | 176 | 0.86 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Beach Street Middle School | 6 | Public | 6-8 | 405 | 0.85 |
| St Peters By The Sea Episcopal Day School | NR | Private | PK, K-8 | 176 | 0.86 |
| Bridges Academy (The) | NR | Private | PK-8 | 211 | 1.15 |
| The Bridges Academy | NR | Private | PK, K-8 | 0 | 1.20 |
| Our Lady Of Lourdes School | NR | Private | PK-8 | 209 | 1.44 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| West Islip Senior High School | 9 | Public | 9-12 | 1,262 | 1.02 |
| St John The Baptist Diocesan High School | NR | Private | 9-12 | 1,335 | 1.09 |
| Babylon Junior Senior High School | 5 | Public | 7-12 | 703 | 2.15 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 2.25 |
| North Babylon High School | 6 | Public | 9-12 | 1,506 | 2.30 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 123 Gladstone Avenue, West Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 29 Bardolier Ln, West Islip | 06/02/2022 | $635,000 | |
| 607 McCall Ave, West Islip | 11/01/1994 | $185,000 | |
| 901 Hampshire Rd, Bay Shore | 05/28/2019 | ||
| 17 Bardolier Ln, Bay Shore | 04/28/2011 | $465,000 | |
| 613 Myrtle Ave, West Islip | 12/28/2021 | ||
| 605 Myrtle Ave, West Islip | |||
| 620 Myrtle Ave, West Islip | 1,526 | 10/02/2018 | $375,000 |
| 601 Myrtle Ave, West Islip | 09/04/2025 | $665,000 | |
| 945 Thompson Dr, Bay Shore | 1,390 | 09/06/2017 | $357,500 |
| 602 Myrtle Ave, West Islip | |||
| 125 Gladstone Ave, West Islip | |||
| 623 Myrtle Ave, West Islip | 05/20/2013 | $344,000 | |
| 56 7th St, Bay Shore | 01/13/2020 | $360,500 | |
| 895 Hampshire Rd, Bay Shore | 02/04/2015 | $467,500 | |
| 25 Bardolier Ln, Bay Shore | |||
| 20 Bardolier Ln, West Islip | 2,075 | 01/26/2021 | $533,500 |
| 624 Myrtle Ave, West Islip | 2,022 | 06/20/2023 | $540,000 |
| 644 Myrtle Ave, West Islip | 07/15/2022 | $585,000 | |
| 643 Myrtle Ave, West Islip | 09/11/2015 | ||
| 529 Myrtle Ave, West Islip | 08/27/2025 | $710,000 |