| Primary address | 17 William Street, Bay Shore |
| Zip code | 11706 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 290-1-61 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 04/24/2015 |
| Sale price | $257,500 |
| Arm's length | Register |
| Property tax | $9,941 |
| 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 $32,500, the tax amount paid for 17 William Street, Bay Shore, NY 11706 is $9,941.
When was 17 William Street, Bay Shore, NY 11706 last sold and what was the last sale price?17 William Street, Bay Shore, NY 11706 was last sold in 04/24/2015 for $257,500.
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 17 William Street, Bay Shore, including title documents, transfer conditions, mortgages and liens.
*Here are the three most recent sales for this property.
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 17 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 | $9,941 |
| Market value | $457,746 |
| Assessed value | $32,500 |
Here's the assessment & property tax history for 17 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 | $457,746 | $32,500 | 29.299 | $9,522 | +4.40% |
| 2023-2024 | $446,429 | $32,500 | 28.063 | $9,120 | -0.15% |
| 2022-2023 | $392,512 | $32,500 | 28.104 | $9,134 | +0.31% |
| 2021-2022 | $350,215 | $32,500 | 28.016 | $9,105 | +2.87% |
| 2020-2021 | $335,052 | $32,500 | 27.234 | $8,851 | -23.68% |
The complete history of permits filed for 17 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 17 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 17 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 | 0.22 |
| Heritage Christian Academy | NR | Private | PK-5 | 41 | 0.22 |
| Mary G Clarkson School | NR | Public | K-2 | 446 | 0.22 |
| Fifth Avenue School | NR | Public | K-2 | 383 | 0.80 |
| Brook Avenue Elementary School | NR | Public | K-2 | 400 | 1.06 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 0.51 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.18 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 1.80 |
| West Middle School | 4 | Public | 6-8 | 848 | 2.01 |
| Udall Road Middle School | 6 | Public | 6-8 | 445 | 2.08 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 0.89 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.12 |
| Islip High School | 9 | Public | 9-12 | 892 | 2.22 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.34 |
| Ascent School for Individuals With Autism | NR | Private | 4-12 | 24 | 2.79 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 17 William Street, Bay Shore.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 208 M Springmeadow Dr, Holbrook | 11/19/1999 | $70,000 | |
| 1115 Nugent Ave, Bay Shore | 05/03/1993 | $138,000 | |
| 11 Pinewood Ave, Central Islip | 01/17/2023 | $10 | |
| 39 Walnut St, Central Islip | 05/09/2014 | $215,000 | |
| 62 Fairlawn Dr, Central Islip | 10/18/2006 | $371,000 | |
| 127 Lincoln Dr, Oakdale | 06/11/2012 | $365,000 | |
| 11 Tupelo Ln, East Islip | 11/04/1994 | $198,000 | |
| 74 Sprucewood Blvd, Central Islip | 01/17/2017 | $290,000 | |
| 96 Spruce Walk, Bay Shore | 07/09/2024 | ||
| 6 Maplewing Dr, Central Islip | 11/03/2022 | ||
| 163 Kensington Ave, Bayport | 08/03/2012 | $550,000 | |
| 14 Summerfield Cir, Central Islip | 1,400 | 03/05/2021 | |
| 182 Norma Ave, West Islip | 07/15/2015 | $305,000 | |
| 1125 Martinstein Ave, Bay Shore | 02/12/2020 | ||
| 57 Van Cedar St, Brentwood | 1,428 | 07/27/2024 | |
| 40 Beecher Ave, East Islip | 04/13/1993 | ||
| 37 Wensly Ln, East Islip | 07/09/2025 | ||
| 89 Serene Pl, Hauppauge | 05/04/1993 | $177,000 | |
| 164 Noble St, Brentwood | 03/29/1993 | ||
| 6 Aldan CT, Islip Terrace | 1,584 | 05/06/2021 | $495,000 |