| Primary address | 18 A Dekalb Avenue, Brentwood |
| Zip code | 11717 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 52-1-62.1 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 05/11/1998 |
| Sale price | $98,000 |
| Arm's length | Register |
| Current property tax | $4,905 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.45 |
| Year built | 1976 |
| 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:
18 A Dekalb Avenue, Brentwood, NY 11717 was built in 1976.
What is the assessed value of 18 A Dekalb Avenue, Brentwood, NY 11717 and the property tax paid?Assessed at $33,100, the tax amount paid for 18 A Dekalb Avenue, Brentwood, NY 11717 is $7,766.
When was 18 A Dekalb Avenue, Brentwood, NY 11717 last sold and what was the last sale price?18 A Dekalb Avenue, Brentwood, NY 11717 was last sold in 05/11/1998 for $98,000.
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 18 A Dekalb Avenue, Brentwood, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 05/11/1998 | $98,000 | 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 18 A Dekalb Avenue, Brentwood, NY 11717. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $7,767 |
| Current property tax | $4,905 |
| Market value | $466,197 |
| Assessed value | $33,100 |
Here's the assessment & property tax history for 18 A Dekalb 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 | $466,197 | $33,100 | 22.743 | $7,528 | +4.85% |
| 2023-2024 | $454,670 | $33,100 | 21.691 | $7,180 | -0.19% |
| 2022-2023 | $399,759 | $33,100 | 21.733 | $7,194 | +2.00% |
| 2021-2022 | $356,681 | $33,100 | 21.306 | $7,052 | +1.39% |
| 2020-2021 | $341,237 | $33,100 | 21.013 | $6,955 | +4.58% |
The complete history of permits filed for 18 A Dekalb 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 A Dekalb 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 A Dekalb 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 | 0.57 |
| North Elementary School | 4 | Public | 1-5 | 855 | 1.31 |
| East Elementary School | NR | Public | PK, K | 507 | 1.52 |
| East Elementary School | NR | Public | PK, K | 507 | 1.52 |
| Pine Park Elementary School | NR | Public | K-1 | 534 | 1.62 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| East Middle School | 4 | Public | 6-8 | 1,159 | 1.47 |
| North Middle School | 4 | Public | 6-8 | 1,131 | 1.74 |
| Freshman Center | NR | Public | 9 | 1,247 | 2.01 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.08 |
| Our Lady Of Providence Regional School | NR | Private | PK-8 | 251 | 2.22 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Central Islip Senior High School | 3 | Public | 9-12 | 2,576 | 1.64 |
| Freshman Center | NR | Public | 9 | 1,247 | 2.01 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.08 |
| Hauppauge High School | 9 | Public | 9-12 | 1,079 | 2.27 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.28 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 18 A Dekalb Avenue, Brentwood.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 14 Doolittle St, Brentwood | 03/28/2001 | $100,000 | |
| 15 20th Ave, Bay Shore | 11/27/2019 | $437,000 | |
| 119 Dari Dr, Holbrook | 07/21/2003 | $333,000 | |
| 9 Barberry Rd, West Islip | 08/21/2003 | ||
| 15 Wittman Ln, Brentwood | 1,700 | 04/25/2018 | $345,000 |
| 5 Willow St, Central Islip | 09/19/2007 | ||
| 454 Hauser Ave, Holbrook | 03/24/2006 | ||
| 1376 Pine Acres Blvd, Bay Shore | 06/16/1998 | $12,000 | |
| 1418 Jefferson Ave, West Islip | 01/12/2016 | ||
| 117 Chapel Hill Dr, Brentwood | 914 | 04/07/2021 | |
| 186 Noble St, Brentwood | 07/01/2025 | ||
| 304 Bristol CT, Holbrook | 1,967 | 02/02/2024 | $737,000 |
| 1 W Bay Dr, West Islip | 08/07/2003 | $375,000 | |
| 1086 Brookdale Ave, Bay Shore | 1,141 | 11/17/2020 | $380,000 |
| 198 Alkier St, Brentwood | 1,981 | 08/18/2022 | $500,000 |
| 178 Evergreen Ave, Brentwood | 08/26/2025 | ||
| 33 S Saxon Ave, Bay Shore | 07/28/2003 | ||
| 548 Renee Dr, Bayport | 04/12/2013 | $383,000 | |
| 73 Tabor St, Brentwood | 12/14/2009 | $404,564 | |
| 220 Newberry St, Brentwood | 02/22/2008 |