| Primary address | 12 Alder Avenue, Brentwood |
| Zip code | 11717 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 137-2-47 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 05/01/2002 |
| Sale price | $190,000 |
| Arm's length | Register |
| Current property tax | $6,336 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.17 |
| 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 $34,400, the tax amount paid for 12 Alder Avenue, Brentwood, NY 11717 is $8,071.
When was 12 Alder Avenue, Brentwood, NY 11717 last sold and what was the last sale price?12 Alder Avenue, Brentwood, NY 11717 was last sold in 05/01/2002 for $190,000.
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 12 Alder 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 12 Alder 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 | $8,072 |
| Current property tax | $6,336 |
| Market value | $484,508 |
| Assessed value | $34,400 |
Here's the assessment & property tax history for 12 Alder 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 | $484,508 | $34,400 | 22.743 | $7,824 | +4.85% |
| 2023-2024 | $472,527 | $34,400 | 21.691 | $7,462 | -0.19% |
| 2022-2023 | $415,458 | $34,400 | 21.733 | $7,476 | +2.00% |
| 2021-2022 | $370,689 | $34,400 | 21.306 | $7,329 | +1.39% |
| 2020-2021 | $354,639 | $34,400 | 21.013 | $7,228 | +4.58% |
The complete history of permits filed for 12 Alder 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 12 Alder 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 12 Alder 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) |
|---|---|---|---|---|---|
| MDQ Academy | NR | Private | PK-12 | 412 | 0.68 |
| MDQ Academy | NR | Private | PK-12 | 412 | 0.68 |
| Pine Park Elementary School | NR | Public | K-1 | 534 | 0.74 |
| East Elementary School | NR | Public | PK, K | 507 | 0.78 |
| East Elementary School | NR | Public | PK, K | 507 | 0.78 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| East Middle School | 4 | Public | 6-8 | 1,159 | 0.62 |
| MDQ Academy | NR | Private | PK-12 | 412 | 0.68 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 1.08 |
| Freshman Center | NR | Public | 9 | 1,247 | 1.13 |
| North Middle School | 4 | Public | 6-8 | 1,131 | 1.34 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| MDQ Academy | NR | Private | PK-12 | 412 | 0.68 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 0.82 |
| Freshman Center | NR | Public | 9 | 1,247 | 1.13 |
| Central Islip Senior High School | 3 | Public | 9-12 | 2,576 | 2.32 |
| Brentwood Res Center | NR | Public | 9-10, 12 | 11 | 3.08 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 12 Alder Avenue, Brentwood.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 1870 Spur Dr S, Islip Terrace | 2,198 | 06/24/2023 | |
| 115 Floyd St, Brentwood | 2,433 | 04/12/2020 | $430,000 |
| 20 Woods Pl, Islip Terrace | 05/19/2003 | ||
| 141 Thunder Rd, Holbrook | 08/13/2010 | $375,000 | |
| 39 W White St, Brentwood | 1,577 | 10/29/2024 | |
| 5 Warren St, Brentwood | 06/08/2021 | $10 | |
| 103 Amityville St, Islip Terrace | 1,096 | 09/07/2017 | $255,000 |
| 126 Monell Ave, Islip | 09/28/1998 | $140,000 | |
| 9 Nostrand Ave, Brentwood | 09/29/2025 | ||
| 60 Eisenhower Ave, Brentwood | 08/21/2012 | ||
| 217 Sherman St, Brentwood | 09/23/1998 | ||
| 126 Boulevard Ave, West Islip | 07/16/2024 | $820,000 | |
| 246 Sequams Lane Ctr, West Islip | 10/10/2018 | ||
| 55 Potomac Ln, Sayville | 10/05/1998 | $217,000 | |
| 2224 Louis Kossuth Ave, Ronkonkoma | 12/29/2022 | ||
| 10 Dekalb Ave, Brentwood | 09/15/2005 | ||
| 23 Yalta Dr, Central Islip | 1,020 | 09/25/2020 | $390,000 |
| 167 Twin Lawns Ave, Brentwood | 11/08/2001 | $196,000 | |
| 9 Jeffery Rd, Oakdale | 2,218 | 06/25/2020 | $545,000 |
| 135 Noble St, Brentwood | 3,388 | 04/04/2019 | $175,000 |