| Primary address | 17 West William Street, Bay Shore |
| Zip code | 11706 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 341-2-86 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 09/22/2006 |
| Sale price | $420,000 |
| Arm's length | Register |
| Current property tax | $9,867 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.27 |
| 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 $35,200, the tax amount paid for 17 West William Street, Bay Shore, NY 11706 is $10,767.
When was 17 West William Street, Bay Shore, NY 11706 last sold and what was the last sale price?17 West William Street, Bay Shore, NY 11706 was last sold in 09/22/2006 for $420,000.
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 West 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 West 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 | $10,767 |
| Current property tax | $9,867 |
| Market value | $495,774 |
| Assessed value | $35,200 |
Here's the assessment & property tax history for 17 West 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 | $495,774 | $35,200 | 29.299 | $10,313 | +4.40% |
| 2023-2024 | $483,517 | $35,200 | 28.063 | $9,878 | -0.15% |
| 2022-2023 | $425,121 | $35,200 | 28.104 | $9,893 | +0.31% |
| 2021-2022 | $379,311 | $35,200 | 28.016 | $9,862 | +2.87% |
| 2020-2021 | $362,887 | $35,200 | 27.234 | $9,586 | -23.68% |
The complete history of permits filed for 17 West 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 West 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 West 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) |
|---|---|---|---|---|---|
| Brook Avenue Elementary School | NR | Public | K-2 | 400 | 0.16 |
| St Patrick School | NR | Private | PK-8 | 534 | 0.44 |
| St Patrick School | NR | Private | PK-8 | 534 | 0.44 |
| Fifth Avenue School | NR | Public | K-2 | 383 | 0.59 |
| Mary G Clarkson School | NR | Public | K-2 | 446 | 0.88 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Patrick School | NR | Private | PK-8 | 534 | 0.44 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 0.55 |
| Islip Middle School | 4 | Public | 6-8 | 641 | 1.39 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 2.38 |
| St Peters By The Sea Episcopal Day School | NR | Private | PK, K-8 | 176 | 2.41 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 0.30 |
| Islip High School | 9 | Public | 9-12 | 892 | 1.38 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.80 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.81 |
| St John The Baptist Diocesan High School | NR | Private | 9-12 | 1,335 | 3.48 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 17 West William Street, Bay Shore.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 2832 Pine Ave, Ronkonkoma | 12/11/2003 | $310,000 | |
| 27 Satellite Dr, Islip Terrace | 11/07/1997 | $143,000 | |
| 279 Haven Ave, Ronkonkoma | 03/14/2003 | $297,500 | |
| 7 Amber CT, Hauppauge | 11/13/1997 | $240,000 | |
| 50 Montgomery St, Brentwood | 2,014 | 02/16/2021 | $440,000 |
| 341 Breeze Ave, Ronkonkoma | 05/01/1998 | $134,990 | |
| 1455 E Forks Rd, Bay Shore | 2,688 | 01/30/2023 | $551,250 |
| 452 Raft Ave, Holbrook | 11/20/1997 | $148,500 | |
| 222 H Springmeadow Dr, Holbrook | 10/20/1997 | ||
| 199 Hilltop Dr, Brentwood | 1,828 | 01/15/2026 | $334,902 |
| 240 Center Bay Dr, West Islip | 04/26/2004 | ||
| 100 Calvert Ave, Ronkonkoma | 04/25/2001 | ||
| 1570 N Gardiner Dr, Bay Shore | 09/27/2023 | $525,000 | |
| 108 Branch Ave, Central Islip | 11/19/2019 | ||
| 676 Lowell Ave, Central Islip | 09/19/2002 | ||
| 205 Grand Blvd, Brentwood | 2,576 | 02/04/2022 | $575,000 |
| 192 Suffolk Ave, Brentwood | 05/05/2003 | ||
| 5 Hawthorne Ave, Central Islip | 11/25/1998 | $123,000 | |
| 140 Stacom St, Brentwood | 04/27/2023 | $500,000 | |
| 44 Macarthur Ave, Brentwood | 10/21/2000 |