| Primary address | 12 William Street, Bay Shore |
| Zip code | 11706 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 290-1-43 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 02/19/2003 |
| Sale price | $10 |
| Arm's length | Register |
| Current property tax | $14,165 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.17 |
| 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 $49,250, the tax amount paid for 12 William Street, Bay Shore, NY 11706 is $15,065.
When was 12 William Street, Bay Shore, NY 11706 last sold?12 William Street, Bay Shore, NY 11706 was last sold in 06/20/2005.
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 12 William Street, Bay Shore, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 02/19/2003 | $10 | 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 12 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 |
| Base tax | $15,065 |
| Current property tax | $14,165 |
| Market value | $693,662 |
| Assessed value | $49,250 |
Here's the assessment & property tax history for 12 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 | $693,662 | $49,250 | 29.299 | $14,430 | +4.40% |
| 2023-2024 | $676,511 | $49,250 | 28.063 | $13,821 | -0.15% |
| 2022-2023 | $594,807 | $49,250 | 28.104 | $13,841 | +0.31% |
| 2021-2022 | $530,711 | $49,250 | 28.016 | $13,798 | +2.87% |
| 2020-2021 | $507,732 | $49,250 | 27.234 | $13,413 | -23.68% |
The complete history of permits filed for 12 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 12 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 12 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) |
|---|---|---|---|---|---|
| Heritage Christian Academy | NR | Private | PK-5 | 41 | 0.17 |
| Heritage Christian Academy | NR | Private | PK-5 | 41 | 0.17 |
| Mary G Clarkson School | NR | Public | K-2 | 446 | 0.26 |
| Fifth Avenue School | NR | Public | K-2 | 383 | 0.75 |
| Brook Avenue Elementary School | NR | Public | K-2 | 400 | 1.04 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 0.51 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.17 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 1.86 |
| West Middle School | 4 | Public | 6-8 | 848 | 2.02 |
| Udall Road Middle School | 6 | Public | 6-8 | 445 | 2.04 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 0.85 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.18 |
| Islip High School | 9 | Public | 9-12 | 892 | 2.22 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.39 |
| Ascent School for Individuals With Autism | NR | Private | 4-12 | 24 | 2.80 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 12 William Street, Bay Shore.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 41 Pineview Blvd, Central Islip | 01/28/2005 | ||
| 1450 Ocean Ave, Bohemia | 3,013 | 03/16/2018 | $560,000 |
| 1051 Cassel Ave, Bay Shore | 05/02/2003 | $336,000 | |
| 7 Garner Ln, Bay Shore | 09/15/2005 | $1,200,000 | |
| 170 Amityville St, Islip Terrace | 08/26/2005 | $550,000 | |
| 265 Atlantic St, Central Islip | 1,453 | 02/15/2024 | $410,000 |
| 52 Tern CT, Bay Shore | 01/17/2017 | $735,000 | |
| 133 Conerty St, Brentwood | 2,376 | 03/09/2020 | |
| 4 Taft St, Brentwood | 10/11/2024 | ||
| 23 Blacker St, Brentwood | 03/14/2008 | ||
| 15 Potter Ave, Central Islip | 04/15/2004 | $327,500 | |
| 40 Deer Path Rd, Central Islip | 1,318 | 10/27/2023 | $560,000 |
| 133 Palmer St, Brentwood | 05/14/2003 | $229,990 | |
| 255 Ocean Ave, Brentwood | 09/24/2025 | $630,000 | |
| 5 Ontario Dr, Bay Shore | 09/20/2021 | ||
| 49 Claremont Ave, Bay Shore | 01/07/2003 | $269,500 | |
| 10 Clipper RDW, Ocean Beach | 05/07/2003 | $1,300,000 | |
| 122 John St, Hauppauge | 2,780 | 09/24/2020 | $735,000 |
| 100 Hilary St, West Sayville | 05/15/2003 | $340,000 | |
| 650 Lincoln Ave, Sayville | 2,268 | 04/17/2019 |