| Primary address | 35 Underhill Boulevard, Syosset |
| Zip code | 11791 |
| County | Nassau |
| Town/City | Oyster Bay |
| Village (swiss code) | None (unincorporated town) |
| Parcel ID | 15-16-354 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Building class | Paving, Blacktop or Fencing Used with Motor Vehicle Services (430.84) |
| Acreage | 0.019 |
| Street | Paved |
| Traffic | Medium |
| Area type | Commercial/Industrial park |
| School district | Syosset |
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 $199, the tax amount paid for 35 Underhill Boulevard, Syosset, NY 11791 is $1,446.
When was 35 Underhill Boulevard, Syosset, NY 11791 last sold and what was the last sale price?35 Underhill Boulevard, Syosset, NY 11791 was last sold in 10/21/2020 for $1,500,000.
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 35 Underhill Boulevard, Syosset, 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 35 Underhill Boulevard, Syosset, NY 11791. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2026 |
| Property tax | $1,446 |
| Market value | $19,900 |
| Assessed value | $199 |
Here's the assessment & property tax history for 35 Underhill Boulevard, Syosset, 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 | $19,900 | $199 | 709.962 | $1,392 | +5.19% |
| 2024 | $19,891 | $199 | 685.445 | $1,323 | -5.57% |
| 2023 | $19,900 | $199 | 733.485 | $1,401 | -6.81% |
| 2022 | $19,900 | $199 | 755.439 | $1,503 | +0.37% |
| 2021 | $18,600 | $186 | 805.271 | $1,498 | -14.89% |
The complete history of permits filed for 35 Underhill Boulevard, Syosset, 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 35 Underhill Boulevard, Syosset, 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 35 Underhill Boulevard, Syosset 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) |
|---|---|---|---|---|---|
| St Edward Confessor School | NR | Private | PK-8 | 265 | 0.32 |
| St Edward Confessor School | NR | Private | PK-8 | 265 | 0.32 |
| Village Elementary School | 9 | Public | K-5 | 415 | 0.38 |
| P.S. 256 | NR | Public | PK, K-12 | 500 | 0.86 |
| P.S. 256 | NR | Public | PK, K-12 | 500 | 0.86 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Edward Confessor School | NR | Private | PK-8 | 265 | 0.32 |
| P.S. 256 | NR | Public | PK, K-12 | 500 | 0.86 |
| South Woods Middle School | 8 | Public | 6-8 | 746 | 1.06 |
| The Center For Developmental Disabilities | NR | Private | 105 | 1.36 | |
| H B Thompson Middle School | 9 | Public | 6-8 | 997 | 1.47 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| P.S. 256 | NR | Public | PK, K-12 | 500 | 0.86 |
| Our Lady Of Mercy Academy | NR | Private | 9-12 | 359 | 1.07 |
| Syosset Senior High School | 10 | Public | 9-12 | 2,266 | 1.16 |
| The Center For Developmental Disabilities | NR | Private | 105 | 1.36 | |
| Fusion Academy Woodbury Ny | NR | Private | 6-12 | 75 | 1.55 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 35 Underhill Boulevard, Syosset.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 47 Willis Ave, Syosset | 1,235 | 02/04/2025 | |
| 32 Walters Ave, Syosset | 1,500 | 09/25/1998 | |
| 47 Railroad Ave, Syosset | 1,704 | 10/28/2005 | |
| 24 Willis Ave, Syosset | 798 | 05/09/2011 | |
| 51 Willis Ave, Syosset | 628 | 09/23/2025 | $500,000 |
| 22 Willis Ave, Syosset | 1,680 | 03/21/2014 | |
| 36 Willis Ave, Syosset | 04/27/2010 | $375,000 | |
| 35 Willis Ave, Syosset | 2,132 | 12/18/2000 | $350,000 |
| 35 Underhill Blvd, Syosset | 6,100 | 10/21/2020 | $1,500,000 |
| 11 Railroad Ave, Syosset | 876 | 03/21/2014 | |
| 116 Jackson Ave, Syosset | 2,049 | 11/12/2021 | $950,000 |
| 23 Willis Ave, Syosset | 4,480 | 01/08/2019 | $1,300,000 |
| 43 Willis Ave, Syosset | 1,472 | 09/29/2015 | $415,000 |
| 98 Jackson Ave, Syosset | 3,826 | ||
| 48 Willis Ave, Syosset | 03/23/2018 | $425,000 | |
| 29 Willis Ave, Syosset | 2,020 | 12/13/2023 | $942,500 |
| 33 Willis Ave, Syosset | 1,572 | 04/05/2000 | $280,000 |
| 28 Walters Ave, Syosset | 2,733 | 03/09/2016 | |
| 30 Willis Ave, Syosset | 874 | 05/24/2018 | $400,000 |
| 16 Willis Ave, Syosset | 860 |