| Primary address | 49 Union Avenue, Islip |
| Zip code | 11751 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 370-4-31.2 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 11/13/2019 |
| Sale price | $642,500 |
| Arm's length | Register |
| Current property tax | $0 |
| Building sqft | 2,631 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.28 |
| Year built | 2002 |
| 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:
49 Union Avenue, Islip, NY 11751 was built in 2002 and has a total of 2,631 square feet.
What is the assessed value of 49 Union Avenue, Islip, NY 11751 and the property tax paid?Assessed at $59,000, the tax amount paid for 49 Union Avenue, Islip, NY 11751 is $18,622.
When was 49 Union Avenue, Islip, NY 11751 last sold and what was the last sale price?49 Union Avenue, Islip, NY 11751 was last sold in 11/13/2019 for $642,500.
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 49 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 49 Union Avenue, Islip, NY 11751. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $18,623 |
| Current property tax | $0 |
| Market value | $830,986 |
| Assessed value | $59,000 |
Here's the assessment & property tax history for 49 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 |
|---|---|---|---|---|---|
| 2024-2025 | $830,986 | $59,000 | 30.486 | $17,987 | +3.73% |
| 2023-2024 | $810,440 | $59,000 | 29.39 | $17,340 | +1.68% |
| 2022-2023 | $712,561 | $59,000 | 28.904 | $17,053 | +0.07% |
| 2021-2022 | $635,776 | $59,000 | 28.884 | $17,042 | +3.07% |
| 2020-2021 | $608,247 | $59,000 | 28.023 | $16,534 | -26.94% |
The complete history of permits filed for 49 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 49 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 49 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 | 0.62 |
| St Mary School | NR | Private | PK-8 | 413 | 0.88 |
| St Mary School | NR | Private | PK-8 | 413 | 0.88 |
| Wing Elementary School | NR | Public | K-1 | 379 | 0.94 |
| Commack Road Elementary School | 3 | Public | 2-5 | 397 | 1.27 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip Middle School | 4 | Public | 6-8 | 641 | 0.54 |
| St Mary School | NR | Private | PK-8 | 413 | 0.88 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.59 |
| East Islip Middle School | 6 | Public | 6-8 | 804 | 2.20 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 2.25 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip High School | 9 | Public | 9-12 | 892 | 0.55 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 2.18 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 2.26 |
| MDQ Academy | NR | Private | PK-12 | 412 | 3.52 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 3.86 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 49 Union Avenue, Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 74 Willow Ave, Islip | |||
| 34 Willow Ave, Islip | 02/21/2023 | ||
| 67 Union Ave, Islip | |||
| 70 Willow Ave, Islip | 10/28/1996 | $4,500 | |
| 560 Main St, Islip | 11,681 | ||
| 38 Willow Ave, Islip | 04/15/1996 | $137,000 | |
| 488 Main St, Islip | 03/16/2017 | $860,000 | |
| 25 Willow Ave, Islip | 1,728 | 12/13/2016 | |
| 31 Willow Ave, Islip | 06/07/1994 | $180,000 | |
| 41 Union Ave, Islip | |||
| 65 Union Ave, Islip | 04/24/2017 | ||
| 478 Main St, Islip | 04/24/2019 | $455,000 | |
| 556 Main St, Islip | 8,370 | ||
| 35 Union Ave, Islip | |||
| 25 Union Ave, Islip | |||
| 54 Willow Ave, Islip | |||
| 27 Union Ave, Islip | |||
| 26 Union Ave, Islip | 05/27/2014 | $240,000 | |
| 31 Union Ave, Islip | 10/02/2024 | $1,500,000 | |
| 524 Main St, Islip | 12/18/2020 | $350,000 |