| Primary address | 18 Rossmore Avenue, Central Islip |
| Zip code | 11722 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 120-3-10.3 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 12/01/2011 |
| Sale price | $45,000 |
| Arm's length | Register |
| Property tax | $11,065 |
| Building sqft | 4,057 |
| Building class | Two Family Year-Round Residence (220) |
| Acreage | 0.19 |
| Year built | 1948 |
| Units | 2 |
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 Rossmore Avenue, Central Islip, NY 11722 was built in 1948 and has a total of 4,057 square feet.
What is the assessed value of 18 Rossmore Avenue, Central Islip, NY 11722 and the property tax paid?Assessed at $36,300, the tax amount paid for 18 Rossmore Avenue, Central Islip, NY 11722 is $11,064.
When was 18 Rossmore Avenue, Central Islip, NY 11722 last sold and what was the last sale price?18 Rossmore Avenue, Central Islip, NY 11722 was last sold in 12/01/2011 for $45,000.
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 Rossmore Avenue, Central Islip, 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 Rossmore Avenue, Central Islip, NY 11722. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $11,065 |
| Market value | $511,267 |
| Assessed value | $36,300 |
Here's the assessment & property tax history for 18 Rossmore Avenue, Central Islip, 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 | $511,267 | $36,300 | 29.569 | $10,734 | +5.71% |
| 2023-2024 | $498,626 | $36,300 | 27.973 | $10,154 | -1.12% |
| 2022-2023 | $438,406 | $36,300 | 28.29 | $10,269 | +0.97% |
| 2021-2022 | $391,163 | $36,300 | 28.019 | $10,171 | -2.89% |
| 2020-2021 | $374,227 | $36,300 | 28.854 | $10,474 | +3.66% |
The complete history of permits filed for 18 Rossmore Avenue, Central Islip, 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 Rossmore Avenue, Central Islip, 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 Rossmore Avenue, Central Islip 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) |
|---|---|---|---|---|---|
| Cordello Avenue Elementary School | 4 | Public | K-6 | 507 | 0.26 |
| Our Lady Of Providence Regional School | NR | Private | PK-8 | 251 | 0.27 |
| Our Lady Of Providence Regional School | NR | Private | PK-8 | 251 | 0.27 |
| Anthony Alfano Elementary School | 5 | Public | PK, K-6 | 586 | 0.39 |
| Anthony Alfano Elementary School | 5 | Public | PK, K-6 | 586 | 0.39 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Our Lady Of Providence Regional School | NR | Private | PK-8 | 251 | 0.27 |
| Ralph Reed School | 3 | Public | 7-8 | 1,149 | 1.04 |
| East Middle School | 4 | Public | 6-8 | 1,159 | 1.54 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.14 |
| Gersh Academy | NR | Private | 6-12 | 0 | 2.16 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Central Islip Senior High School | 3 | Public | 9-12 | 2,576 | 0.73 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.14 |
| Gersh Academy | NR | Private | 6-12 | 0 | 2.16 |
| Hauppauge High School | 9 | Public | 9-12 | 1,079 | 2.42 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.77 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 18 Rossmore Avenue, Central Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 21 Taft Ave, Islip | 936 | 12/14/2020 | $409,000 |
| 11 Milford Dr, Central Islip | 3,010 | 03/12/2018 | $320,000 |
| 80 E Madison St, East Islip | 11/17/1998 | $175,000 | |
| 472 Smith St, Central Islip | 04/24/2009 | $240,000 | |
| 144 Bay Walk, Bay Shore | 02/23/1999 | $100 | |
| 177 Evergreen Ave, Brentwood | 07/07/2003 | ||
| 37 Wilson St, Brentwood | 10/24/2001 | ||
| 79 Locust Ave, Oakdale | 03/19/1999 | $187,000 | |
| 28 Nimitz Ave, Brentwood | 07/06/2012 | ||
| 6 E Cherry St, Central Islip | 03/11/2025 | $561,000 | |
| 32 Colorado Ave, Bay Shore | 1,832 | 05/12/2016 | $345,000 |
| 1550 N Thompson Dr, Bay Shore | 800 | 07/20/2018 | $250,000 |
| 1090 Nugent Ave, Bay Shore | 1,220 | 09/04/2020 | $390,000 |
| 63 Pamela Rd, Brentwood | 03/31/2011 | $280,000 | |
| 12 Skipper Dr, West Islip | 03/19/1999 | $365,000 | |
| 82 Penataquit Ave, Bay Shore | 07/17/2013 | ||
| 155 Awixa Ave, Bay Shore | 04/17/2002 | $2,100,000 | |
| 5 Riverdale Ave, Oakdale | 06/25/2008 | $280,000 | |
| 15 Bailey Ave, Bay Shore | 02/25/2005 | $359,000 | |
| 63 Division Ave, East Islip | 03/19/1999 | $120,500 |