| Primary address | 21 Bay 3 Street, Islip |
| Zip code | 11751 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 397-2-17 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 12/22/2021 |
| Sale price | $450,000 |
| Arm's length | Register |
| Property tax | $9,359 |
| Building sqft | 1,188 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.14 |
| Year built | 1929 |
| Zoning district | Register |
| School district | Islip |
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:
21 Bay 3 Street, Islip, NY 11751 was built in 1929 and has a total of 1,188 square feet.
What is the assessed value of 21 Bay 3 Street, Islip, NY 11751 and the property tax paid?Assessed at $29,650, the tax amount paid for 21 Bay 3 Street, Islip, NY 11751 is $9,358.
When was 21 Bay 3 Street, Islip, NY 11751 last sold and what was the last sale price?21 Bay 3 Street, Islip, NY 11751 was last sold in 12/22/2021 for $450,000.
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 21 Bay 3 Street, Islip, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 12/22/2021 | $450,000 | 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 21 Bay 3 Street, Islip, NY 11751. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $9,359 |
| Market value | $417,605 |
| Assessed value | $29,650 |
Here's the assessment & property tax history for 21 Bay 3 Street, Islip, 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 |
|---|---|---|---|---|---|
| 2025-2026 | $417,605 | $29,650 | 31.564 | $9,359 | +3.54% |
| 2024-2025 | $417,605 | $29,650 | 30.486 | $9,039 | +3.73% |
| 2023-2024 | $407,280 | $29,650 | 29.39 | $8,714 | +1.68% |
| 2022-2023 | $358,092 | $29,650 | 28.904 | $8,570 | +0.07% |
| 2021-2022 | $319,505 | $29,650 | 28.884 | $8,564 | +3.07% |
The complete history of permits filed for 21 Bay 3 Street, Islip, 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 21 Bay 3 Street, Islip, 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 21 Bay 3 Street, Islip 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) |
|---|---|---|---|---|---|
| Maud S Sherwood Elementary School | 6 | Public | 2-5 | 335 | 0.44 |
| St Mary School | NR | Private | PK-8 | 413 | 0.77 |
| St Mary School | NR | Private | PK-8 | 413 | 0.77 |
| John F Kennedy Elementary School | 5 | Public | 3-5 | 450 | 1.14 |
| Wing Elementary School | NR | Public | K-1 | 379 | 1.20 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Mary School | NR | Private | PK-8 | 413 | 0.77 |
| Islip Middle School | 4 | Public | 6-8 | 641 | 0.83 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.90 |
| East Islip Middle School | 6 | Public | 6-8 | 804 | 2.26 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 2.56 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip High School | 9 | Public | 9-12 | 892 | 0.86 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 2.33 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 2.43 |
| MDQ Academy | NR | Private | PK-12 | 412 | 3.86 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 4.21 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 21 Bay 3 Street, Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 99 Chateau Dr, Oakdale | 09/10/1999 | $237,500 | |
| 230 N Main St, Sayville | 09/24/2002 | $440,000 | |
| 736 Bohemia Pkwy, Sayville | 09/14/1999 | ||
| 1438 Potter Blvd, Bay Shore | 06/08/2001 | $165,000 | |
| 199 Clarissa Dr, Bay Shore | 09/09/1999 | $113,950 | |
| 72 Pilgrim Rd, Brentwood | 06/05/2003 | ||
| 37 Hawthorne Ave, Central Islip | 08/30/2002 | $163,500 | |
| 22 Cedar Point Dr, West Islip | 3,642 | 07/15/2021 | $1,300,000 |
| 2 Logan Rd, Brentwood | 01/11/2012 | $160,640 | |
| 25 Laurie Rd, Brentwood | 08/22/2006 | ||
| 52 Ballad Cir, Holbrook | 12/21/2006 | $424,000 | |
| 312 Lincoln Blvd, Hauppauge | 1,448 | 11/30/2017 | $477,500 |
| 2460 Ocean Ave, Ronkonkoma | 896 | 12/12/2018 | $500,000 |
| 73 Pilgrim Rd, Brentwood | 10/26/2011 | $225,000 | |
| 239 Feller Dr, Central Islip | 702 | 08/26/2021 | $221,000 |
| 11 Stephens CT, Hauppauge | 09/27/2024 | ||
| 27 Forbes St, Oakdale | 08/02/1999 | $210,000 | |
| 245 Irving St, Central Islip | 1,125 | 07/27/2020 | $325,000 |
| 45 E Elm St, Central Islip | 04/05/2003 | ||
| 1570 Roosevelt Ave, Bohemia | 08/24/1999 |