| Primary address | 18 Harrison Street, Brentwood |
| Zip code | 11717 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 50-4-3 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 04/24/2026 |
| Sale price | $10 |
| Arm's length | Register |
| Current property tax | $6,453 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.17 |
| Units | 2 |
| 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 $34,900, the tax amount paid for 18 Harrison Street, Brentwood, NY 11717 is $8,189.
When was 18 Harrison Street, Brentwood, NY 11717 last sold and what was the last sale price?18 Harrison Street, Brentwood, NY 11717 was last sold in 04/24/2026 for $10.
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 18 Harrison Street, Brentwood, including title documents, transfer conditions, mortgages and liens.
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 Harrison Street, Brentwood, NY 11717. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $8,189 |
| Current property tax | $6,453 |
| Market value | $491,549 |
| Assessed value | $34,900 |
Here's the assessment & property tax history for 18 Harrison Street, 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 | $491,549 | $34,900 | 22.743 | $7,937 | +4.85% |
| 2023-2024 | $479,395 | $34,900 | 21.691 | $7,570 | -0.19% |
| 2022-2023 | $421,498 | $34,900 | 21.733 | $7,585 | +2.00% |
| 2021-2022 | $376,078 | $34,900 | 21.306 | $7,436 | +1.39% |
| 2020-2021 | $359,794 | $34,900 | 21.013 | $7,334 | +4.58% |
The complete history of permits filed for 18 Harrison Street, 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 Harrison Street, 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 Harrison Street, 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) |
|---|---|---|---|---|---|
| North Elementary School | 4 | Public | 1-5 | 855 | 0.29 |
| Northeast Elementary School | 4 | Public | 1-5 | 942 | 0.82 |
| Pine Park Elementary School | NR | Public | K-1 | 534 | 1.04 |
| Twin Pines Elementary School | 4 | Public | 1-5 | 744 | 1.06 |
| East Elementary School | NR | Public | PK, K | 507 | 1.92 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| North Middle School | 4 | Public | 6-8 | 1,131 | 0.82 |
| Freshman Center | NR | Public | 9 | 1,247 | 1.26 |
| East Middle School | 4 | Public | 6-8 | 1,159 | 1.79 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.10 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 2.40 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Freshman Center | NR | Public | 9 | 1,247 | 1.26 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 1.96 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.10 |
| Brentwood Res Center | NR | Public | 9-10, 12 | 11 | 2.64 |
| Central Islip Senior High School | 3 | Public | 9-12 | 2,576 | 2.64 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 18 Harrison Street, Brentwood.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 28 Hagen St, Brentwood | 1,518 | 02/28/2020 | $380,000 |
| 390 Southport St, Ronkonkoma | 2,246 | 10/24/2017 | $340,000 |
| 1311 Jefferson Ave, West Islip | 1,914 | 08/08/2019 | |
| 994 Spur Dr S, Bay Shore | 07/18/2007 | ||
| 70 Live Oak Dr, Holbrook | 1,483 | 03/08/2017 | $399,900 |
| 2176 Louis Kossuth Ave, Ronkonkoma | 1,638 | 10/03/2024 | $641,000 |
| 232 Feller Dr, Central Islip | 1,172 | 12/14/2022 | $355,000 |
| 265 Jefferson Ave, Brentwood | 03/12/2022 | ||
| 39 Bay Way Ave, Bay Shore | 08/28/2007 | $610,008 | |
| 82 Gerritsen Ave, Bayport | 07/07/2007 | $991,000 | |
| 15 Mid Pl, Bohemia | 08/31/2007 | $489,500 | |
| 111 Peterson St, Brentwood | 07/24/2007 | $1 | |
| 3 1st St, Brentwood | 08/27/2007 | $390,000 | |
| 48 Ridgeway Blvd, Bay Shore | 08/06/2007 | $374,000 | |
| 1350 Pine Dr, Bay Shore | 1,064 | 01/27/2022 | |
| 2 Robin Hill Pl, Brentwood | 2,527 | 05/04/2022 | |
| 1680 Pine Grove Blvd, Bay Shore | 1,361 | 01/12/2021 | |
| 102 Bonnie Rd, Oakdale | 1,337 | 07/09/2025 | $730,000 |
| 46 Patton St, Brentwood | 08/13/2007 | ||
| 21 Paddock St, Holbrook | 08/21/2007 |