| Primary address | 18 Franklin Street, Islip |
| Zip code | 11751 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 293-2-15 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 05/30/2025 |
| Sale price | $655,000 |
| Arm's length | Register |
| Property tax | $10,921 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.19 |
| Zoning district | Register |
| School district | Islip |
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 $34,600, the tax amount paid for 18 Franklin Street, Islip, NY 11751 is $10,921.
When was 18 Franklin Street, Islip, NY 11751 last sold and what was the last sale price?18 Franklin Street, Islip, NY 11751 was last sold in 05/30/2025 for $655,000.
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 Franklin Street, 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 Franklin Street, Islip, NY 11751. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $10,921 |
| Market value | $487,324 |
| Assessed value | $34,600 |
Here's the assessment & property tax history for 18 Franklin Street, 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 |
|---|---|---|---|---|---|
| 2025-2026 | $487,324 | $34,600 | 31.564 | $10,921 | +3.54% |
| 2024-2025 | $487,324 | $34,600 | 30.486 | $10,548 | +3.73% |
| 2023-2024 | $475,274 | $34,600 | 29.39 | $10,169 | +1.68% |
| 2022-2023 | $417,875 | $34,600 | 28.904 | $10,001 | +0.07% |
| 2021-2022 | $372,845 | $34,600 | 28.884 | $9,994 | +3.07% |
The complete history of permits filed for 18 Franklin Street, 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 Franklin Street, 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 Franklin Street, 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) |
|---|---|---|---|---|---|
| Commack Road Elementary School | 3 | Public | 2-5 | 397 | 0.15 |
| Wing Elementary School | NR | Public | K-1 | 379 | 0.79 |
| Loretta Park Elementary School | 4 | Public | 1-5 | 646 | 1.02 |
| Laurel Park Elementary School | 3 | Public | 1-5 | 665 | 1.09 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.18 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Patrick School | NR | Private | PK-8 | 534 | 1.18 |
| Islip Middle School | 4 | Public | 6-8 | 641 | 1.20 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 1.57 |
| St Mary School | NR | Private | PK-8 | 413 | 1.84 |
| South Middle School | 3 | Public | 6-8 | 1,033 | 2.01 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip High School | 9 | Public | 9-12 | 892 | 1.11 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 1.91 |
| MDQ Academy | NR | Private | PK-12 | 412 | 2.12 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 2.15 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 2.51 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 18 Franklin Street, Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 3 Matt CT, Bay Shore | 12/14/2007 | $267,000 | |
| 20 Juniper St, Central Islip | 02/23/2001 | $149,000 | |
| 135 Peterson St, Brentwood | 01/20/2012 | $270,300 | |
| 11 Merion Rd, Brentwood | 08/11/2025 | ||
| 24 Swallow Ln, Brentwood | 03/11/1999 | $132,000 | |
| 33 Ridgewood Ave, Brentwood | 06/19/2001 | ||
| 35 Hemlock St, Central Islip | 06/27/2003 | $150,000 | |
| 61 Maple St, Islip | 08/14/2025 | $685,000 | |
| 387 Raft Ave, Holbrook | 05/06/2022 | $530,000 | |
| 520 Connetquot Ave, Islip Terrace | 02/21/2002 | $196,000 | |
| 71 Stellenwerf Ave, Islip Terrace | 03/12/1999 | $152,000 | |
| 29 1st Ave, Central Islip | 05/27/2004 | ||
| 195-199 Main St, Sayville | 6,891 | 12/16/2020 | $714,000 |
| 300 Norma Ave, West Islip | 09/13/2004 | $345,000 | |
| 1285 Locust Ave, Bohemia | 10/24/2011 | ||
| 2357 Walnut Ave, Ronkonkoma | 12/02/2014 | $190,000 | |
| 725 Muncey Rd, West Islip | 2,299 | 08/13/2019 | $428,000 |
| 1322 Gardiner Dr, Bay Shore | 10/13/1999 | $55,000 | |
| 238 Deer Rd, Ronkonkoma | 08/11/2014 | $229,900 | |
| 7 Laurel Dr, Bay Shore | 12/09/2020 |