| Primary address | 225 Underhill Boulevard, Syosset |
| Zip code | 11791 |
| County | Nassau |
| Town/City | Oyster Bay |
| Village (swiss code) | None (unincorporated town) |
| Parcel ID | 15-169-2.C |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $344,374 |
| Building sqft | 103,136 |
| Building class | Light Manufacturing, Small Factory Buildings (710.24) |
| Land | Primary site |
| Topography | Level |
| Acreage | 5.59 |
| Buildings on lot | 1 |
| Year built | 1963 |
| Stories | 1 |
| Zoning district | Register (See more on map) |
| Capitalization rate | Register |
| Air conditioning | Central |
| Street | Paved |
| Traffic | Medium |
| Area type | Commercial/Industrial park |
| School district | Locust Grove |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
| Square footage | Structure | Grade | Year built | Stories |
|---|---|---|---|---|
| 103,136 | Warehouse 75,000> | C+ | 1963 | 1 |
| Floors | Square footage | Use | Construction | Condition | Exterior wall | Heating | Air conditioning | Plumbing |
|---|---|---|---|---|---|---|---|---|
| 01-01 | 5,501 | Whse office 75K & up | Register | Register | Register | Register | Central | Register |
| 01-01 | 48,393 | Whse 75,001 sf & up | Register | Register | Register | Register | Register | |
| 01-01 | 49,242 | Whse 75,001 sf & up | Register | Register | Register | Register | Central | Register |
Find the size and usage for each floor in the building, plus corresponding details on construction type, physical condition, heating, and plumbing.
Check out a breakdown by type of rentable square feet and the rent charged for each, including detailed info on expenses, gross/net income, income and expense rate.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
This Light Manufacturing, Small Factory Buildings (710.24) located at 225 Underhill Boulevard, Syosset, NY 11791 has a total of 103,136 square feet.
What is the year built & the current market value of 225 Underhill Boulevard, Syosset, NY 11791?225 Underhill Boulevard, Syosset, NY 11791 was built in 1963 and has a current tax assessor's market value of $5,042,100.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
| Listing type | For Lease |
|---|---|
| Listing date | 02/23/2021 |
| Last updated | 05/18/2026 |
High ceiling central Nassau warehouse space for lease with amenities including exceptional loading and stack 3 pallets.
Available
| Suite name | Space type | Lease rate | Available space | Brokers |
|---|---|---|---|---|
| Space Available | Warehouse/Distribution | Listing price not available | 103,000 | Scott Silverstein |
Create a free account to view the complete sales history for 225 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 225 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 | $344,375 |
| Tax class | Register |
| Market value | $5,042,100 |
| Assessed value | $50,421 |
| Transitional assessed value | Register |
Here's the assessment & property tax history for 225 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 |
|---|---|---|---|---|---|
| 2026 | $5,042,100 | $50,421 | 682.999 | $344,375 | +9.50% |
| 2025 | $4,715,400 | $47,154 | 666.972 | $314,504 | -2.32% |
| 2024 | $5,405,500 | $51,688 | 644.549 | $321,972 | +5.27% |
| 2023 | $5,501,200 | $55,012 | 686.201 | $305,854 | -21.11% |
| 2022 | $5,405,500 | $54,055 | 717.269 | $387,720 | -7.34% |
The complete history of permits filed for 225 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.
| Total population | 25,520 |
| Median age | 43.2 |
| Average household income | $276,174 |
| Family households | 83.9% |
| Occupied housing units | 8,113 |
| Owner occupied units | 93.5% |
| Average number of people per household | 3.11 |
| Median year structure built | 1959 |
| Median value for units with a mortgage | $968,800 |
| Median value for units without a mortgage | $878,600 |
Create a free account to unlock extended information for 225 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 225 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 |
Here are the neighbors for 225 Underhill Boulevard, Syosset.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 345 Underhill Blvd, Syosset | 274,779 | 09/27/2006 | $31,900,000 |
| 8 Dorothy St, Syosset | 1,852 | 07/31/2008 | $619,250 |
| 5 Susan CT, Syosset | 2,273 | 08/26/2013 | $730,000 |
| 325 Underhill Blvd, Syosset | 41,800 | 06/12/2008 | $5,973,000 |
| 425 Underhill Blvd, Syosset | 80,100 | 02/19/2019 | $8,600,000 |
| 485 Underhill Blvd, Syosset | 35,889 | 08/22/2006 | |
| 15 Lenore St, Syosset | 2,075 | 02/26/2010 | $627,500 |
| 26 Cedar St, Syosset | 1,688 | 08/24/2005 | $599,000 |
| 475 Underhill Blvd, Syosset | 76,280 | 03/20/2026 | $15,675,000 |
| 575 Underhill Blvd, Syosset | 228,894 | 05/09/2018 | |
| 6 Dorothy St, Syosset | 2,115 | ||
| 14 Jean Pl, Syosset | 2,115 | 12/05/2024 | $850,000 |
| 7 Susan CT, Syosset | 2,316 | 08/24/2016 | $685,000 |
| 313 Underhill Blvd, Syosset | 58,400 | 09/27/2006 | $17,694,245 |
| 24 Cedar St, Syosset | 1,688 | 06/13/2003 | $525,000 |
| 11 Lenore St, Syosset | 2,273 | 08/26/2020 | $925,000 |
| 9 Lenore St, Syosset | 1,702 | 12/12/2003 | $429,000 |
| 9 Susan CT, Syosset | 2,239 | 10/08/2020 | $925,000 |
| 28 Cedar St, Syosset | 2,923 | 03/01/2007 | $463,500 |
| 2 Lesley Dr, Syosset | 2,090 | 07/01/2003 | $569,000 |