| Primary address | 7 Adelphi Street, Islip |
| Zip code | 11751 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 422-1-38 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 05/22/2025 |
| Sale price | $675,000 |
| Arm's length | Register |
| Property tax | $12,594 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.29 |
| 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 $39,900, the tax amount paid for 7 Adelphi Street, Islip, NY 11751 is $12,594.
When was 7 Adelphi Street, Islip, NY 11751 last sold and what was the last sale price?7 Adelphi Street, Islip, NY 11751 was last sold in 05/22/2025 for $675,000.
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 7 Adelphi Street, Islip, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 05/22/2025 | $675,000 | 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 7 Adelphi 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 | $12,594 |
| Market value | $561,972 |
| Assessed value | $39,900 |
Here's the assessment & property tax history for 7 Adelphi 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 |
|---|---|---|---|---|---|
| 2024-2025 | $561,972 | $39,900 | 30.486 | $12,164 | +3.73% |
| 2023-2024 | $548,077 | $39,900 | 29.39 | $11,727 | +1.68% |
| 2022-2023 | $481,884 | $39,900 | 28.904 | $11,533 | +0.07% |
| 2021-2022 | $429,957 | $39,900 | 28.884 | $11,525 | +3.07% |
| 2020-2021 | $411,340 | $39,900 | 28.023 | $11,181 | -26.94% |
The complete history of permits filed for 7 Adelphi 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 7 Adelphi 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 7 Adelphi 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) |
|---|---|---|---|---|---|
| Maud S Sherwood Elementary School | 6 | Public | 2-5 | 335 | 0.26 |
| Woodhull School | NR | Public | PK, K-6 | 34 | 1.14 |
| Woodhull School | NR | Public | PK, K-6 | 34 | 1.14 |
| St Mary School | NR | Private | PK-8 | 413 | 1.36 |
| St Mary School | NR | Private | PK-8 | 413 | 1.36 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip Middle School | 4 | Public | 6-8 | 641 | 0.66 |
| St Mary School | NR | Private | PK-8 | 413 | 1.36 |
| St Patrick School | NR | Private | PK-8 | 534 | 1.61 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 2.26 |
| East Islip Middle School | 6 | Public | 6-8 | 804 | 2.81 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip High School | 9 | Public | 9-12 | 892 | 0.74 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 2.00 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 2.87 |
| MDQ Academy | NR | Private | PK-12 | 412 | 3.90 |
| Brentwood High School | 3 | Public | 9-12 | 4,641 | 4.16 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 7 Adelphi Street, Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 17 Grace CT, Islip | 1,996 | 05/09/2024 | |
| 13 Grace CT, Islip | 1,873 | 09/01/2020 | |
| 268 Ocean Ave, Islip | 1,732 | 07/25/2025 | $799,999 |
| 194 Cedar Ave, Islip | |||
| 8 Adelphi St, Islip | 2,448 | 12/06/2023 | $10 |
| 16 Grace CT, Islip | 10/04/2013 | $418,500 | |
| 7 Chanticleer Dr, Islip | 04/28/2009 | ||
| 301 S Ocean Ave, Islip | 1,912 | 11/24/2020 | |
| 216 Cedar Ave, Islip | 1,421 | 09/14/2017 | $410,000 |
| 5 Grace CT, Islip | 03/05/2024 | ||
| 265 S Ocean Ave, Islip | 10/26/2010 | $533,888 | |
| 269 Ocean Ave, Islip | 1,522 | 07/26/2017 | |
| 377 Ocean Ave, Islip | 4,442 | 11/12/2021 | $865,000 |
| 204 Cedar Ave, Islip | |||
| 23 Grace CT, Islip | 1,873 | ||
| 325 Ocean Ave, Islip | 06/09/2009 | $101,000 | |
| 272 Ocean Ave, Islip | 03/25/2024 | $1,069,000 | |
| 22 Grace CT, Islip | 1,852 | 06/04/2019 | $475,000 |
| 271 Ocean Ave, Islip | |||
| 275 Ocean Ave, Islip | 1,614 | 04/28/2020 | $200,000 |