| Primary address | 18 Franklin Avenue, Brentwood |
| Zip code | 11717 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 52-2-72.4 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 02/02/2026 |
| Sale price | $303,316 |
| Arm's length | Register |
| Property tax | $10,325 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.57 |
| 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 $44,000, the tax amount paid for 18 Franklin Avenue, Brentwood, NY 11717 is $10,324.
When was 18 Franklin Avenue, Brentwood, NY 11717 last sold and what was the last sale price?18 Franklin Avenue, Brentwood, NY 11717 was last sold in 02/02/2026 for $303,316.
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 18 Franklin Avenue, Brentwood, 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 18 Franklin Avenue, Brentwood, NY 11717. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $10,325 |
| Market value | $619,718 |
| Assessed value | $44,000 |
Here's the assessment & property tax history for 18 Franklin Avenue, Brentwood, 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 | $619,718 | $44,000 | 22.743 | $10,007 | +4.85% |
| 2023-2024 | $604,396 | $44,000 | 21.691 | $9,544 | -0.19% |
| 2022-2023 | $531,401 | $44,000 | 21.733 | $9,563 | +2.00% |
| 2021-2022 | $474,138 | $44,000 | 21.306 | $9,375 | +1.39% |
| 2020-2021 | $453,608 | $44,000 | 21.013 | $9,246 | +4.58% |
The complete history of permits filed for 18 Franklin Avenue, Brentwood, 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 18 Franklin Avenue, Brentwood, 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 18 Franklin Avenue, Brentwood 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) |
|---|---|---|---|---|---|
| Northeast Elementary School | 4 | Public | 1-5 | 942 | 0.42 |
| North Elementary School | 4 | Public | 1-5 | 855 | 1.29 |
| East Elementary School | NR | Public | PK, K | 507 | 1.34 |
| East Elementary School | NR | Public | PK, K | 507 | 1.34 |
| Pine Park Elementary School | NR | Public | K-1 | 534 | 1.49 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| East Middle School | 4 | Public | 6-8 | 1,159 | 1.28 |
| North Middle School | 4 | Public | 6-8 | 1,131 | 1.67 |
| MDQ Academy | NR | Private | PK-12 | 412 | 1.89 |
| Freshman Center | NR | Public | 9 | 1,247 | 1.90 |
| Our Lady Of Providence Regional School | NR | Private | PK-8 | 251 | 2.14 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Central Islip Senior High School | 3 | Public | 9-12 | 2,576 | 1.62 |
| MDQ Academy | NR | Private | PK-12 | 412 | 1.89 |
| Freshman Center | NR | Public | 9 | 1,247 | 1.90 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.11 |
| Hauppauge High School | 9 | Public | 9-12 | 1,079 | 2.38 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 18 Franklin Avenue, Brentwood.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 20 Franklin Ave, Brentwood | 1,384 | 08/18/2022 | $280,000 |
| 21 Arbutus CT, Ronkonkoma | 01/28/2000 | $182,000 | |
| 103 Edgewood Rd, West Islip | 2,486 | 02/23/2018 | $527,000 |
| 112 Edgewood Ave, Ronkonkoma | 08/16/2000 | $172,000 | |
| 15 Avenue D, Holbrook | 06/04/1997 | $118,500 | |
| 122 Heyward St, Brentwood | 5,386 | 07/26/2012 | $400,000 |
| 711 McCall Ave, West Islip | 1,188 | 08/26/2021 | $506,000 |
| 768 Casino Walk, Bay Shore | 06/19/2020 | $350,700 | |
| 411 Hyman Ave, West Islip | 1,497 | 06/23/1995 | $145,000 |
| 709 McCall Ave, West Islip | 1,578 | 05/20/2022 | $720,000 |
| 26 Fulton St, Brentwood | |||
| 138 Sequams Ln E, West Islip | 02/19/2026 | $875,000 | |
| 4181 Express Dr N, Ronkonkoma | 01/21/2013 | ||
| 194 Palmer Cir, Sayville | 09/26/2024 | ||
| 10 Brushwood CT, East Islip | 08/05/2003 |