| Primary address | 50 Deforest Avenue, West Islip |
| Zip code | 11795 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 472-2-26.1 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 08/28/2017 |
| Sale price | $573,000 |
| Arm's length | Register |
| Property tax | $17,407 |
| Building sqft | 2,580 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.27 |
| Year built | 1990 |
| 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:
50 Deforest Avenue, West Islip, NY 11795 was built in 1990 and has a total of 2,580 square feet.
What is the assessed value of 50 Deforest Avenue, West Islip, NY 11795 and the property tax paid?Assessed at $60,100, the tax amount paid for 50 Deforest Avenue, West Islip, NY 11795 is $17,406.
When was 50 Deforest Avenue, West Islip, NY 11795 last sold and what was the last sale price?50 Deforest Avenue, West Islip, NY 11795 was last sold in 08/28/2017 for $573,000.
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 50 Deforest Avenue, West Islip, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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 50 Deforest 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 | $17,407 |
| Market value | $846,479 |
| Assessed value | $60,100 |
Here's the assessment & property tax history for 50 Deforest 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 | $877,465 | $62,300 | 27.624 | $17,210 | +3.86% |
| 2023-2024 | $855,769 | $62,300 | 26.598 | $16,571 | +1.06% |
| 2022-2023 | $752,415 | $62,300 | 26.319 | $16,397 | +0.07% |
| 2021-2022 | $671,336 | $62,300 | 26.301 | $16,386 | +2.12% |
| 2020-2021 | $642,268 | $62,300 | 25.754 | $16,045 | -23.63% |
The complete history of permits filed for 50 Deforest 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 50 Deforest 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) | 0.2, AE (See more on map) |
Access the detailed traffic volume map for 50 Deforest 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) |
|---|---|---|---|---|---|
| Babylon Christian School | NR | Private | PK, K-5 | 90 | 0.39 |
| Babylon Christian School | NR | Private | PK, K-5 | 90 | 0.39 |
| South Bay Jr Academy Of Sda | NR | Private | PK-8 | 56 | 0.43 |
| South Bay Jr Academy Of Sda | NR | Private | PK-8 | 56 | 0.43 |
| Paul J Bellew Elementary School | 7 | Public | PK, K-5 | 456 | 0.64 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| South Bay Jr Academy Of Sda | NR | Private | PK-8 | 56 | 0.43 |
| Babylon Junior Senior High School | 5 | Public | 7-12 | 703 | 0.60 |
| Beach Street Middle School | 6 | Public | 6-8 | 405 | 1.07 |
| The Bridges Academy | NR | Private | PK, K-8 | 0 | 1.47 |
| Bridges Academy (The) | NR | Private | PK-8 | 211 | 1.49 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Babylon Junior Senior High School | 5 | Public | 7-12 | 703 | 0.60 |
| West Islip Senior High School | 9 | Public | 9-12 | 1,262 | 0.87 |
| St John The Baptist Diocesan High School | NR | Private | 9-12 | 1,335 | 1.26 |
| West Babylon Senior High School | 7 | Public | 9-12 | 1,247 | 1.61 |
| North Babylon High School | 6 | Public | 9-12 | 1,506 | 2.29 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 50 Deforest Avenue, West Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 56 Shadow Grove Ln, Holbrook | 1,807 | 11/21/2018 | $420,000 |
| 16 Fire Rd, Bay Shore | 08/13/2003 | $265,000 | |
| 881 Karshick St, Bohemia | 07/26/2023 | $795,000 | |
| 173 Wagstaff Ln, West Islip | 01/11/2008 | ||
| 11 Rollin Ln, Brentwood | 09/09/2024 | ||
| 1 Wyandanch Ave, East Islip | 04/22/2010 | $305,500 | |
| 370 Lillian Blvd, Holbrook | 11/13/1998 | $227,000 | |
| 1435 Pine Dr, Bay Shore | 1,442 | 01/31/2025 | |
| 1335 Hiram Ave, Holbrook | 1,530 | 06/18/2019 | $400,000 |
| 139 Loop Dr, Sayville | 1,896 | 10/26/2018 | $380,000 |
| 340 Kimberly Pl, West Islip | 1,833 | 01/12/2021 | $650,000 |
| 52 Wavecrest Ave, West Islip | 01/15/1996 | $117,000 | |
| 9 Lexington Ave, Brentwood | 06/30/2015 | $190,000 | |
| 92 Marion St, Sayville | 868 | 10/27/2020 | $400,000 |
| 8 Costello Ave, Bay Shore | 3,692 | 03/26/2019 | $480,000 |
| 84 Cranberry Walk, Bay Shore | 12/21/1995 | $208,575 | |
| 245 Greenbelt Pkwy, Holbrook | 01/16/2003 | $370,000 | |
| 17 Sunset Dr, Sayville | 02/25/2025 | $860,000 | |
| 76 4th St, Brentwood | 01/11/1996 | $40,000 | |
| 23 Somerset Dr, Holbrook | 2,482 | 04/27/2017 | $585,500 |