| Primary address | 8 Costello Avenue, Bay Shore |
| Zip code | 11706 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 291-1-44 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 03/26/2019 |
| Sale price | $480,000 |
| Arm's length | Register |
| Property tax | $15,815 |
| Building sqft | 3,692 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.26 |
| Year built | 1972 |
| Units | 2 |
| 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:
8 Costello Avenue, Bay Shore, NY 11706 was built in 1972 and has a total of 3,692 square feet.
What is the assessed value of 8 Costello Avenue, Bay Shore, NY 11706 and the property tax paid?Assessed at $51,700, the tax amount paid for 8 Costello Avenue, Bay Shore, NY 11706 is $15,814.
When was 8 Costello Avenue, Bay Shore, NY 11706 last sold and what was the last sale price?8 Costello Avenue, Bay Shore, NY 11706 was last sold in 03/26/2019 for $480,000.
How many residential units does this building have?This building has 2 residential unit(s).
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 8 Costello Avenue, 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 8 Costello Avenue, 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 | $15,815 |
| Market value | $728,169 |
| Assessed value | $51,700 |
Here's the assessment & property tax history for 8 Costello Avenue, 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 | $728,169 | $51,700 | 29.299 | $15,148 | +4.40% |
| 2023-2024 | $710,165 | $51,700 | 28.063 | $14,509 | -0.15% |
| 2022-2023 | $624,396 | $51,700 | 28.104 | $14,530 | +0.31% |
| 2021-2022 | $557,112 | $51,700 | 28.016 | $14,484 | +2.87% |
| 2020-2021 | $532,990 | $51,700 | 27.234 | $14,080 | -33.12% |
The complete history of permits filed for 8 Costello Avenue, 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 8 Costello Avenue, 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 8 Costello Avenue, 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 | 0.31 |
| Heritage Christian Academy | NR | Private | PK-5 | 41 | 0.67 |
| Heritage Christian Academy | NR | Private | PK-5 | 41 | 0.67 |
| Brook Avenue Elementary School | NR | Public | K-2 | 400 | 0.69 |
| St Patrick School | NR | Private | PK-8 | 534 | 0.72 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 0.12 |
| St Patrick School | NR | Private | PK-8 | 534 | 0.72 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 1.75 |
| Islip Middle School | 4 | Public | 6-8 | 641 | 1.78 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.22 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 0.75 |
| Islip High School | 9 | Public | 9-12 | 892 | 1.75 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.16 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.22 |
| Freshman Center | NR | Public | 9 | 1,247 | 3.09 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 8 Costello Avenue, Bay Shore.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 881 Karshick St, Bohemia | 07/26/2023 | $795,000 | |
| 16 Fire Rd, Bay Shore | 08/13/2003 | $265,000 | |
| 173 Wagstaff Ln, West Islip | 01/11/2008 | ||
| 370 Lillian Blvd, Holbrook | 11/13/1998 | $227,000 | |
| 1435 Pine Dr, Bay Shore | 1,442 | 01/31/2025 | |
| 52 Wavecrest Ave, West Islip | 01/15/1996 | $117,000 | |
| 139 Loop Dr, Sayville | 1,896 | 10/26/2018 | $380,000 |
| 340 Kimberly Pl, West Islip | 1,833 | 01/12/2021 | $650,000 |
| 9 Lexington Ave, Brentwood | 06/30/2015 | $190,000 | |
| 181 Westwood Dr, Brentwood | 06/18/2025 | ||
| 50 Deforest Ave, West Islip | 2,580 | 08/28/2017 | $573,000 |
| 80 Miller Ave, Central Islip | 06/08/2005 | $382,000 | |
| 81 Beech St, Islip | 10/01/2014 | $340,000 | |
| 53 Biltmore Ave, Oakdale | 04/03/2024 | ||
| 321 Columbia St, Holbrook | 08/29/2017 | ||
| 76 4th St, Brentwood | 01/11/1996 | $40,000 | |
| 17 Sunset Dr, Sayville | 02/25/2025 | $860,000 | |
| 84 Cranberry Walk, Bay Shore | 12/21/1995 | $208,575 | |
| 23 Somerset Dr, Holbrook | 2,482 | 04/27/2017 | $585,500 |
| 1710 Brentwood Rd, Brentwood | 04/11/2025 | $489,250 |