| Primary address | 120 Gladstone Avenue, West Islip |
| Zip code | 11795 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 437-2-137 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 07/25/2025 |
| Sale price | $760,000 |
| Arm's length | Register |
| Current property tax | $10,545 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.29 |
| Units | 2 |
| 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 $46,000, the tax amount paid for 120 Gladstone Avenue, West Islip, NY 11795 is $13,322.
When was 120 Gladstone Avenue, West Islip, NY 11795 last sold and what was the last sale price?120 Gladstone Avenue, West Islip, NY 11795 was last sold in 07/25/2025 for $760,000.
How many residential units does this building have?This building has 2 residential unit(s).
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 120 Gladstone Avenue, West Islip, including title documents, transfer conditions, mortgages and liens.
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 120 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 | $13,323 |
| Current property tax | $10,545 |
| Market value | $647,887 |
| Assessed value | $46,000 |
Here's the assessment & property tax history for 120 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 | $647,887 | $46,000 | 27.624 | $12,707 | +3.86% |
| 2023-2024 | $631,868 | $46,000 | 26.598 | $12,235 | +1.06% |
| 2022-2023 | $555,556 | $46,000 | 26.319 | $12,107 | +0.07% |
| 2021-2022 | $495,690 | $46,000 | 26.301 | $12,098 | +2.12% |
| 2020-2021 | $474,227 | $46,000 | 25.754 | $11,847 | -23.63% |
The complete history of permits filed for 120 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 120 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 120 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 | 0.68 |
| Oquenock Elementary School | 3 | Public | PK, K-5 | 397 | 0.81 |
| Oquenock Elementary School | 3 | Public | PK, K-5 | 397 | 0.81 |
| St Peters By The Sea Episcopal Day School | NR | Private | PK, K-8 | 176 | 0.89 |
| St Peters By The Sea Episcopal Day School | NR | Private | PK, K-8 | 176 | 0.89 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Beach Street Middle School | 6 | Public | 6-8 | 405 | 0.80 |
| St Peters By The Sea Episcopal Day School | NR | Private | PK, K-8 | 176 | 0.89 |
| Bridges Academy (The) | NR | Private | PK-8 | 211 | 1.13 |
| The Bridges Academy | NR | Private | PK, K-8 | 0 | 1.18 |
| Our Lady Of Lourdes School | NR | Private | PK-8 | 209 | 1.43 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| West Islip Senior High School | 9 | Public | 9-12 | 1,262 | 0.98 |
| St John The Baptist Diocesan High School | NR | Private | 9-12 | 1,335 | 1.06 |
| Babylon Junior Senior High School | 5 | Public | 7-12 | 703 | 2.10 |
| North Babylon High School | 6 | Public | 9-12 | 1,506 | 2.27 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 2.30 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 120 Gladstone Avenue, West Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 1056 Carll Dr, Bay Shore | 08/05/2005 | ||
| 303 Washington Ave, Brentwood | 07/27/2006 | $475,000 | |
| 51 Hyde Park Ave, Bay Shore | 2,029 | 07/17/2023 | |
| 12 Clubhouse Cir, Central Islip | 2,164 | 08/04/2023 | $470,000 |
| 1082 Manor Ln, Bay Shore | 09/08/2005 | $326,000 | |
| 6 Indian Head Dr, Sayville | 1,129 | 01/22/2020 | $460,000 |
| 96 San Juan Dr, Hauppauge | 08/11/2015 | $360,000 | |
| 1070 Martinstein Ave, Bay Shore | 09/01/2003 | ||
| 1622 Julia Goldbach Ave, Bohemia | 07/11/2014 | $405,000 | |
| 60 Woodland St, East Islip | 09/08/2005 | $230,000 | |
| 61 Jean Rd, West Islip | 09/06/2005 | $434,000 | |
| 32 Mobile St, Sayville | 08/30/2005 | $385,000 | |
| 48 5th St, West Sayville | 09/07/2005 | $379,000 | |
| 81 Mobile St, Sayville | 1,212 | 09/22/2022 | $569,999 |
| 34 Dubois Rd, West Islip | 1,275 | 07/22/2019 | $410,000 |
| 234 Connecticut Ave, Bay Shore | 09/11/2014 | ||
| 33 Davison Ln E, West Islip | 08/29/2005 | $1,450,000 | |
| 76 Fischer Ave, Islip Terrace | 09/09/2005 | $362,000 | |
| 228 Montauk Hwy, East Islip | 07/24/2008 | ||
| 825 Montauk Hwy, Bayport | 11/30/2023 | $1,200,000 |