| Primary address | 31 18th Avenue, Bay Shore |
| Zip code | 11706 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 246-3-4 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 07/12/2006 |
| Sale price | $225,000 |
| Arm's length | Register |
| Current property tax | $5,755 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.29 |
| Zoning district | Register |
| School district | Brentwood |
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 $27,100, the tax amount paid for 31 18th Avenue, Bay Shore, NY 11706 is $6,359.
When was 31 18th Avenue, Bay Shore, NY 11706 last sold and what was the last sale price?31 18th Avenue, Bay Shore, NY 11706 was last sold in 07/12/2006 for $225,000.
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 31 18th 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 31 18th Avenue, 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 | $6,359 |
| Current property tax | $5,755 |
| Market value | $381,690 |
| Assessed value | $27,100 |
Here's the assessment & property tax history for 31 18th 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 |
|---|---|---|---|---|---|
| 2025-2026 | $381,690 | $27,100 | 23.465 | $6,359 | +3.17% |
| 2024-2025 | $381,690 | $27,100 | 22.743 | $6,163 | +4.85% |
| 2023-2024 | $372,253 | $27,100 | 21.691 | $5,878 | -0.19% |
| 2022-2023 | $327,295 | $27,100 | 21.733 | $5,890 | +2.00% |
| 2021-2022 | $292,026 | $27,100 | 21.306 | $5,774 | +1.39% |
The complete history of permits filed for 31 18th 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 31 18th 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 31 18th 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 (miles) |
|---|---|---|---|---|---|
| Oak Park Elementary School | 2 | Public | K-5 | 711 | 0.48 |
| Laurel Park Elementary School | 3 | Public | 1-5 | 665 | 0.99 |
| Mary G Clarkson School | NR | Public | K-2 | 446 | 1.00 |
| Loretta Park Elementary School | 4 | Public | 1-5 | 646 | 1.00 |
| Southeast Elementary School | 5 | Public | 1-5 | 566 | 1.13 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| South Middle School | 3 | Public | 6-8 | 1,033 | 0.77 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 1.13 |
| MDQ Academy | NR | Private | PK-12 | 412 | 1.21 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.46 |
| East Middle School | 4 | Public | 6-8 | 1,159 | 1.91 |
| Name | Rating | Type | Grade range | No of students | Distance (miles) |
|---|---|---|---|---|---|
| MDQ Academy | NR | Private | PK-12 | 412 | 1.21 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 1.23 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 1.76 |
| Islip High School | 9 | Public | 9-12 | 892 | 2.24 |
| Freshman Center | NR | Public | 9 | 1,247 | 2.25 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 31 18th Avenue, Bay Shore.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 116 Rhode Island Ave, Bay Shore | 1,658 | 10/29/2021 | $450,000 |
| 560 C Briarwood Ave, West Islip | 1,020 | 10/15/2021 | |
| 60 Morris St, Brentwood | 11/03/2009 | ||
| 90 Yankee St, Brentwood | 2,184 | 07/17/2024 | |
| 2 Nagle Ln, Central Islip | 03/12/2025 | $800,000 | |
| 124 Fairview Ave, Bayport | 2,571 | 06/28/2019 | |
| 185 Atlantic St, Central Islip | 06/07/2012 | $200,000 | |
| 211 G Springmeadow Dr, Holbrook | 09/24/2002 | $170,000 | |
| 91 Heartland Blvd, Brentwood | 170,000 | 02/29/2000 | $1 |
| 224 N Fehr Way, Bay Shore | 10,563 | 03/20/2000 | $398,000 |
| 1995 Brentwood Rd, Brentwood | 10/01/2024 | ||
| 21 Myrtle Ave, Brentwood | 03/24/2000 | $176,000 | |
| 1179 Hyman Ave, Bay Shore | 09/21/2025 | ||
| 105 Rianna CT, Brentwood | 03/24/2000 | $175,490 | |
| 92 Udalia CT, West Islip | 11/10/2022 | $600,000 | |
| 26 Laurie Rd, Brentwood | 1,161 | 04/09/2021 | |
| 20 2nd Ave, Brentwood | 12/08/2020 | $460,000 | |
| 28 Andover Dr, Bohemia | 05/28/2009 | ||
| 15 Patton St, Brentwood | 660 | 04/01/2022 | $385,000 |
| 108 Rianna CT, Brentwood | 04/06/2001 |