| Primary address | 7 Underhill Avenue, Syosset |
| Zip code | 11791 |
| County | Nassau |
| Town/City | Oyster Bay |
| Village (swiss code) | None (unincorporated town) |
| Parcel ID | 15-72-9 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Tax class | Register |
| Current property tax | $18,926 |
| Building sqft | 1,252 |
| Building class | One Family Year - Round Residence (210.01) |
| Land | Primary site |
| Topography | Level |
| Acreage | 0.194 |
| Buildings on lot | 1 |
| Year built | 1950 |
| Stories | 1 |
| Style | Ranch |
| Rooms | 5 |
| Bathrooms | 1 |
| Attic | None |
| Basement | Full |
| Exterior wall | Mas & frame |
| Heating type | Central |
| Heating system | Hot water |
| Zoning district | Register (See more on map) |
| School district | Locust Grove |
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:
7 Underhill Avenue, Syosset, NY 11791 was built in 1950 and has a total of 1,252 square feet.
What is the assessed value of 7 Underhill Avenue, Syosset, NY 11791 and the property tax paid?Assessed at $582, the tax amount paid for 7 Underhill Avenue, Syosset, NY 11791 is $18,926.
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 7 Underhill Avenue, Syosset, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 7 Underhill Avenue, Syosset, NY 11791. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2026 |
| Property tax | $18,926 |
| Tax class | Register |
| Market value | $582,000 |
| Assessed value | $582 |
Here's the assessment & property tax history for 7 Underhill Avenue, 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 | $564,000 | $564 | 3139.97 | $17,709 | -1.16% |
| 2024 | $582,521 | $533 | 3361.673 | $17,918 | -11.89% |
| 2023 | $582,000 | $582 | 3493.926 | $20,335 | -8.54% |
| 2022 | $582,000 | $582 | 3820.056 | $22,233 | -8.74% |
| 2021 | $567,000 | $567 | 4296.58 | $24,362 | +45.81% |
The complete history of permits filed for 7 Underhill Avenue, 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 7 Underhill Avenue, 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 7 Underhill Avenue, 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) |
|---|---|---|---|---|---|
| Willits Elementary School | 9 | Public | K-5 | 305 | 0.48 |
| South Grove Elementary School | 9 | Public | K-5 | 416 | 0.65 |
| St Edward Confessor School | NR | Private | PK-8 | 265 | 0.75 |
| St Edward Confessor School | NR | Private | PK-8 | 265 | 0.75 |
| Village Elementary School | 9 | Public | K-5 | 415 | 0.91 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| H B Thompson Middle School | 9 | Public | 6-8 | 997 | 0.55 |
| St Edward Confessor School | NR | Private | PK-8 | 265 | 0.75 |
| Fusion Academy Woodbury Ny | NR | Private | 6-12 | 75 | 1.00 |
| P.S. 256 | NR | Public | PK, K-12 | 500 | 1.19 |
| South Woods Middle School | 8 | Public | 6-8 | 746 | 1.78 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Fusion Academy Woodbury Ny | NR | Private | 6-12 | 75 | 1.00 |
| P.S. 256 | NR | Public | PK, K-12 | 500 | 1.19 |
| Our Lady Of Mercy Academy | NR | Private | 9-12 | 359 | 1.39 |
| Syosset Senior High School | 10 | Public | 9-12 | 2,266 | 1.76 |
| The Center For Developmental Disabilities | NR | Private | 105 | 1.99 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 7 Underhill Avenue, Syosset.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 8 Cheshire Ave, Syosset | 2,729 | 01/10/2019 | $1,260,000 |
| 9 Van Sise CT, Syosset | 1,348 | 01/05/2004 | $200,000 |
| 265 Jackson Ave, Syosset | 1,470 | 01/17/2025 | |
| 6 Cheshire Ave, Syosset | 1,608 | 06/06/2022 | |
| 10 Cheshire Ave, Syosset | 2,538 | 08/29/2016 | $973,880 |
| 14 Cheshire Ave, Syosset | 1,389 | 12/02/1993 | $220,000 |
| 1 Van Sise CT, Syosset | 1,671 | 06/20/2019 | $660,000 |
| 12 Cheshire Ave, Syosset | 1,032 | 08/06/2025 | $850,000 |
| 16 Cheshire Ave, Syosset | 1,654 | 10/11/2001 | $400,000 |
| 22 Cheshire Ave, Syosset | 1,524 | 04/30/2025 | $842,000 |
| 3 Van Sise CT, Syosset | 1,373 | 08/16/2005 | $565,000 |
| 4 Cheshire Ave, Syosset | 1,701 | 07/25/2022 | |
| 11 Underhill Ave, Syosset | 1,334 | 10/28/2014 | |
| 7 Van Sise CT, Syosset | 1,905 | 09/07/2023 | |
| 20 Cheshire Ave, Syosset | 1,227 | 02/25/1999 | $262,000 |
| 9 Underhill Ave, Syosset | 1,460 | 02/10/2020 | $600,000 |
| 18 Cheshire Ave, Syosset | 1,739 | 06/02/1994 | $212,500 |
| 5 Van Sise CT, Syosset | 1,373 | 05/24/2007 | $525,000 |
| 11 Van Sise CT, Syosset | 1,426 | 05/01/2018 | |
| 251 Jackson Ave, Syosset | 2,370 | 10/06/1999 | $200,000 |