5 William Avenue, East Islip, NY 11730 Property Information
5 William Avenue, East Islip, NY 11730 Property Information
- General
- Owner
- Documents
- Tax
- Permits
- Neighborhood
Address
| Primary address | 5 William Avenue, East Islip |
| Zip code | 11730 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 372-4-32.4 |
Sales & Tax Overview for 5 William Avenue, East Islip
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $0 |
Lot & Building Information for 5 William Avenue, East Islip
| Building class | Parking Lot (438) |
| Acreage | 0.47 |
| Units | 2 |
Zoning, Use & Area Overview
| Zoning district | Register |
| School district | East Islip |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Other Property Data for 5 William Avenue, East Islip
Property reports include comprehensive occupancy, improvement and development information (where available).
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- • Improvements for 5 William Avenue, East Islip , including their type, square footage, grade and when they were built.
- • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 5 William Avenue, East Islip
The current market value is $570,422.
How many commercial spaces does this building have?This building has 2 commercial spaces available for lease.
Ownership Information
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Past Sales & Property History for 5 William Avenue, East Islip
Create a free account to view the complete sales history for 5 William Avenue, East Islip, including title documents, transfer conditions, mortgages and liens.
No recorded sales for this property.
Title Documents for 5 William Avenue, East Islip
Data not available for this property.
Property Taxes for 5 William Avenue, East Islip
Access detailed property tax data for 5 William Avenue, East Islip, NY 11730. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $14,345 |
| Current property tax | $0 |
| Market value | $570,422 |
| Assessed value | $40,500 |
Assessment History for 5 William Avenue, East Islip
Here's the assessment & property tax history for 5 William Avenue, East 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 | $570,422 | $40,500 | 27.455 | $11,119 | -11.75% |
| 2023-2024 | $556,319 | $40,500 | 31.112 | $12,600 | -5.19% |
| 2022-2023 | $489,131 | $40,500 | 32.816 | $13,290 | +3.63% |
| 2021-2022 | $436,423 | $40,500 | 31.666 | $12,825 | -3.28% |
| 2020-2021 | $417,526 | $40,500 | 32.741 | $13,260 | -78.14% |
Permits for 5 William Avenue, East Islip
The complete history of permits filed for 5 William Avenue, East 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.
Data not available for this property.
Risk
Create a free account to unlock extended information for 5 William Avenue, East 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) |
Transportation
Access the detailed traffic volume map for 5 William Avenue, East 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 |
Schools
Nearest elementary schools
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Mary School | NR | Private | PK-8 | 413 | 0.16 |
| St Mary School | NR | Private | PK-8 | 413 | 0.16 |
| John F Kennedy Elementary School | 5 | Public | 3-5 | 450 | 0.53 |
| Chatterbox Day School | NR | Private | PK-1 | 61 | 0.91 |
| Chatterbox Day School | NR | Private | PK-1 | 61 | 0.91 |
Nearest middle schools
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Mary School | NR | Private | PK-8 | 413 | 0.16 |
| East Islip Middle School | 6 | Public | 6-8 | 804 | 1.45 |
| Islip Middle School | 4 | Public | 6-8 | 641 | 1.55 |
| St Patrick School | NR | Private | PK-8 | 534 | 2.53 |
| Bay Shore Middle School | 5 | Public | 6-8 | 1,298 | 3.17 |
Nearest high schools
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Islip High School | 9 | Public | 9-12 | 892 | 1.53 |
| East Islip High School | 8 | Public | 9-12 | 1,145 | 1.54 |
| Bay Shore Senior High School | 5 | Public | 9-12 | 1,910 | 3.18 |
| Connetquot Alternative Preschool At Premm | NR | Public | 0 | 3.56 | |
| MDQ Academy | NR | Private | PK-12 | 412 | 3.93 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Neighbors for 5 William Avenue, East Islip
Here are the neighbors for 5 William Avenue, East Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 9 William Ave, East Islip | |||
| 12 Bayview Ave, East Islip | |||
| 14 Duval St, East Islip | 1,629 | 06/08/2020 | $550,000 |
| 18 Bayview Ave, East Islip | 08/26/2024 | $10 | |
| 15 William Ave, East Islip | |||
| 11 Duval St, East Islip | 03/16/2017 | $295,000 | |
| 20 Bayview Ave, East Islip | 04/05/2024 | ||
| 10 A Kemp St, East Islip | 1,402 | ||
| 10 William Ave, East Islip | 02/02/2023 | ||
| 100 Main St, East Islip | 5,516 | 01/13/2026 | $950,000 |
| 10 Suffolk Ln, East Islip | 2,754 | 03/22/2019 | $485,000 |
| 24 Bayview Ave, East Islip | 08/01/2016 | ||
| 22 William Ave, East Islip | 1,638 | 07/17/2017 | $328,000 |
| 170 W Main St, East Islip | |||
| 12 Kemp St, East Islip | |||
| 58-60 W Main St, East Islip | 6,800 | 09/19/2013 | $1,000,000 |
| 26 Bayview Ave, East Islip | |||
| 17 William Ave, East Islip | 11/07/2014 | $445,000 | |
| 15 Duval St, East Islip | 1,155 | 03/21/2017 |