| Primary address | 140 Nassau Avenue, Islip |
| Zip code | 11751 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 344-3-41 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 12/23/2021 |
| Sale price | $400,000 |
| Arm's length | Register |
| Property tax | $11,616 |
| Building sqft | 1,533 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.2 |
| Year built | 1954 |
| Units | 2 |
| 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:
140 Nassau Avenue, Islip, NY 11751 was built in 1954 and has a total of 1,533 square feet.
What is the assessed value of 140 Nassau Avenue, Islip, NY 11751 and the property tax paid?Assessed at $36,800, the tax amount paid for 140 Nassau Avenue, Islip, NY 11751 is $11,615.
When was 140 Nassau Avenue, Islip, NY 11751 last sold and what was the last sale price?140 Nassau Avenue, Islip, NY 11751 was last sold in 12/23/2021 for $400,000.
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 140 Nassau Avenue, Islip, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 12/23/2021 | $400,000 | 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 140 Nassau 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 | $11,616 |
| Market value | $518,309 |
| Assessed value | $36,800 |
Here's the assessment & property tax history for 140 Nassau 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 | $518,309 | $36,800 | 30.486 | $11,219 | +3.73% |
| 2023-2024 | $505,495 | $36,800 | 29.39 | $10,816 | +1.68% |
| 2022-2023 | $444,445 | $36,800 | 28.904 | $10,637 | +0.07% |
| 2021-2022 | $396,552 | $36,800 | 28.884 | $10,629 | +3.07% |
| 2020-2021 | $379,381 | $36,800 | 28.023 | $10,312 | -26.94% |
The complete history of permits filed for 140 Nassau 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 140 Nassau 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 140 Nassau 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) |
|---|---|---|---|---|---|
| Wing Elementary School | NR | Public | K-1 | 379 | 0.47 |
| St Mary School | NR | Private | PK-8 | 413 | 0.85 |
| St Mary School | NR | Private | PK-8 | 413 | 0.85 |
| Commack Road Elementary School | 3 | Public | 2-5 | 397 | 0.90 |
| Maud S Sherwood Elementary School | 6 | Public | 2-5 | 335 | 1.09 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip Middle School | 4 | Public | 6-8 | 641 | 0.72 |
| St Mary School | NR | Private | PK-8 | 413 | 0.85 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.58 |
| East Islip Middle School | 6 | Public | 6-8 | 804 | 1.84 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 2.20 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip High School | 9 | Public | 9-12 | 892 | 0.67 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 1.88 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 2.26 |
| MDQ Academy | NR | Private | PK-12 | 412 | 3.16 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 3.56 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 140 Nassau Avenue, Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 515 Nostrand Ave, Central Islip | 01/18/2002 | $155,000 | |
| 14 S Burling Ln, West Islip | 11/13/2020 | $440,000 | |
| 28 Bluejay Dr, Brentwood | 12/13/2005 | $425,000 | |
| 15 A Nostrand Ave, Brentwood | 07/19/2021 | $10 | |
| 1320 Locust Ave, Bohemia | 01/09/2002 | ||
| 1307 N Windsor Ave, Bay Shore | 2,212 | 08/27/2019 | $356,000 |
| 177 Washington Ave, Brentwood | 09/22/2025 | $520,000 | |
| 660 Spur Dr N, Bay Shore | 02/19/2011 | ||
| 1384 E Forks Rd, Bay Shore | 10/19/2006 | $280,000 | |
| 1159 Namdac Ave, Bay Shore | 01/08/2002 | $200,000 | |
| 24 May CT, Ronkonkoma | 04/05/2001 | $225,000 | |
| 76 Barrett Ave, Bayport | 1,922 | 10/15/2019 | $465,000 |
| 6 Sachs St, Bay Shore | 2,114 | 12/27/2017 | |
| 10 Cypress Ave, Bay Shore | 816 | 05/08/2020 | $230,000 |
| 33 Lexington Ave, Brentwood | 01/15/2002 | ||
| 8 Rocket Dr, Islip Terrace | 2,186 | 10/27/2017 | $390,000 |
| 10 Rose St, Sayville | 04/29/2011 | $350,000 | |
| 19 Trader Ln, Brentwood | 06/20/2003 | ||
| 695 Higbie Ln, West Islip | 11/18/2014 | $427,000 | |
| 142 Ruth St, West Islip | 1,609 | 08/21/2017 | $420,000 |