| Primary address | 254 Union Avenue, Islip |
| Zip code | 11751 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 422-3-15 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 11/30/2020 |
| Sale price | $450,000 |
| Arm's length | Register |
| Property tax | $12,152 |
| Building sqft | 1,080 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.15 |
| Year built | 1984 |
| Zoning district | Register |
| School district | 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:
254 Union Avenue, Islip, NY 11751 was built in 1984 and has a total of 1,080 square feet.
What is the assessed value of 254 Union Avenue, Islip, NY 11751 and the property tax paid?Assessed at $38,500, the tax amount paid for 254 Union Avenue, Islip, NY 11751 is $12,152.
When was 254 Union Avenue, Islip, NY 11751 last sold and what was the last sale price?254 Union Avenue, Islip, NY 11751 was last sold in 11/30/2020 for $450,000.
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 254 Union Avenue, 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 254 Union Avenue, Islip, NY 11751. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $12,152 |
| Market value | $542,253 |
| Assessed value | $38,500 |
Here's the assessment & property tax history for 254 Union Avenue, 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 |
|---|---|---|---|---|---|
| 2025-2026 | $542,253 | $38,500 | 31.564 | $12,152 | +3.54% |
| 2024-2025 | $542,253 | $38,500 | 30.486 | $11,737 | +3.73% |
| 2023-2024 | $528,847 | $38,500 | 29.39 | $11,315 | +1.68% |
| 2022-2023 | $464,976 | $38,500 | 28.904 | $11,128 | +0.07% |
| 2021-2022 | $414,871 | $38,500 | 28.884 | $11,120 | +3.07% |
The complete history of permits filed for 254 Union Avenue, 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 254 Union Avenue, 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 254 Union Avenue, 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) |
|---|---|---|---|---|---|
| Maud S Sherwood Elementary School | 6 | Public | 2-5 | 335 | 0.17 |
| St Mary School | NR | Private | PK-8 | 413 | 1.05 |
| St Mary School | NR | Private | PK-8 | 413 | 1.05 |
| John F Kennedy Elementary School | 5 | Public | 3-5 | 450 | 1.36 |
| Wing Elementary School | NR | Public | K-1 | 379 | 1.40 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip Middle School | 4 | Public | 6-8 | 641 | 0.78 |
| St Mary School | NR | Private | PK-8 | 413 | 1.05 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.82 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 2.48 |
| East Islip Middle School | 6 | Public | 6-8 | 804 | 2.54 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip High School | 9 | Public | 9-12 | 892 | 0.83 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 2.29 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 2.61 |
| MDQ Academy | NR | Private | PK-12 | 412 | 3.95 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 4.26 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 254 Union Avenue, Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 704 Bohemia Pkwy, Sayville | 04/14/2003 | ||
| 90 Woodlawn Ave, Ronkonkoma | 10/15/2004 | $293,500 | |
| 108 Baltimore St, Bay Shore | 06/24/2010 | $380,000 | |
| 21 Beech St, Central Islip | 1,129 | 06/05/2018 | $244,990 |
| 56 Crosby St, Sayville | 05/18/2012 | $515,000 | |
| 50 Sprucewood Blvd, Central Islip | 1,400 | 10/19/2018 | $262,000 |
| 81 Applegate Dr, Central Islip | 04/26/2006 | ||
| 120 Comac St, Ronkonkoma | 18,256 | 05/23/2003 | $250,000 |
| 101 Davison Ln W, West Islip | 06/20/2024 | ||
| 280 Earle St, Central Islip | 936 | 05/04/2021 | $350,000 |
| 41 21st Ave, Bay Shore | 08/01/2013 | $259,000 | |
| 19 E Sycamore St, Central Islip | 2,045 | 11/12/2020 | $320,000 |
| 120 Belle Ave, Ronkonkoma | 03/23/2008 | ||
| 24 A Madison Ave, Brentwood | 1,958 | 08/03/2024 | |
| 354 Whipple St, Brentwood | 06/08/2007 | $306,800 | |
| 141 Hilltop Dr, Brentwood | 1,344 | 06/29/2018 | $360,000 |
| 37 Lakeview CT, Ronkonkoma | 03/12/2018 | ||
| 396 Southport St, Ronkonkoma | 10/19/2015 | $300,000 | |
| 45 Twin River Dr, Oakdale | 07/02/2024 | $715,000 | |
| 1017 Ocean Ave, Bay Shore | 05/16/2003 | $375,000 |