| Primary address | 25 William Street, Bay Shore |
| Zip code | 11706 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 290-1-57 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Property tax | $9,207 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.22 |
| Zoning district | Register |
| School district | Bay Shore |
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 $30,100, the tax amount paid for 25 William Street, Bay Shore, NY 11706 is $9,207.
When was 25 William Street, Bay Shore, NY 11706 last sold?25 William Street, Bay Shore, NY 11706 was last sold in 08/31/2022.
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 25 William Street, Bay Shore, 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 25 William Street, Bay Shore, NY 11706. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $9,207 |
| Market value | $423,943 |
| Assessed value | $30,100 |
Here's the assessment & property tax history for 25 William Street, Bay Shore, 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 | $423,943 | $30,100 | 29.299 | $8,819 | +4.40% |
| 2023-2024 | $413,462 | $30,100 | 28.063 | $8,447 | -0.15% |
| 2022-2023 | $363,527 | $30,100 | 28.104 | $8,459 | +0.31% |
| 2021-2022 | $324,353 | $30,100 | 28.016 | $8,433 | +2.87% |
| 2020-2021 | $310,309 | $30,100 | 27.234 | $8,197 | -23.68% |
The complete history of permits filed for 25 William Street, Bay Shore, 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 25 William Street, Bay Shore, 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 25 William Street, Bay Shore 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) |
|---|---|---|---|---|---|
| Mary G Clarkson School | NR | Public | K-2 | 446 | 0.22 |
| Heritage Christian Academy | NR | Private | PK-5 | 41 | 0.25 |
| Heritage Christian Academy | NR | Private | PK-5 | 41 | 0.25 |
| Fifth Avenue School | NR | Public | K-2 | 383 | 0.86 |
| Hemlock Elementary School | 3 | Public | K-5 | 617 | 1.06 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 0.54 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.21 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 1.75 |
| West Middle School | 4 | Public | 6-8 | 848 | 1.97 |
| Udall Road Middle School | 6 | Public | 6-8 | 445 | 2.09 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 0.95 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.06 |
| Islip High School | 9 | Public | 9-12 | 892 | 2.25 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.29 |
| Ascent School for Individuals With Autism | NR | Private | 4-12 | 24 | 2.76 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 25 William Street, Bay Shore.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 19 Kathy Ln, Bohemia | 12/16/2003 | ||
| 5 Bridge Rd, Hauppauge | 07/16/2015 | $540,479 | |
| 700 Main St, Islip | 01/26/2017 | $1,425,000 | |
| 51 Franklin St, Brentwood | 09/26/2012 | ||
| 18 Woodcrest Dr, Hauppauge | 09/18/2003 | ||
| 170 Officials Ave, Holbrook | 07/14/2025 | $600,000 | |
| 158 Storm Dr, Holtsville | 890 | 07/31/2019 | $270,000 |
| 213 Clark St, Brentwood | 02/26/2025 | ||
| 101 Van Bomel Blvd, Oakdale | 10/05/2012 | $392,200 | |
| 116 Jefferson St, East Islip | 10/30/2003 | ||
| 42 Patton St, Brentwood | 1,960 | 12/21/2022 | $350,000 |
| 153 Arnold St, Holbrook | 11/18/2003 | $329,750 | |
| 1008 Carll Dr, Bay Shore | 1,176 | 03/21/2022 | $479,000 |
| 42 Muncey Rd, Bay Shore | 01/29/2004 | $419,000 | |
| 29 Oakridge Dr, Bay Shore | 12/18/2003 | ||
| 154 Macarthur Blvd, Hauppauge | 2,504 | 08/28/2020 | $550,000 |
| 49 2nd St, Brentwood | 12/02/2020 | $440,000 | |
| 6 Richard Ave, Islip Terrace | 1,022 | 08/17/2021 | $400,000 |
| 855 E Bay Dr, West Islip | 09/11/2017 | $530,000 | |
| 571 Grand Blvd, Brentwood | 01/14/2004 |