| Primary address | 20 Grant Avenue, Islip |
| Zip code | 11751 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 370-1-81 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 11/15/2023 |
| Sale price | $1,350,000 |
| Arm's length | Register |
| Property tax | $25,112 |
| Building class | Commercial (400) |
| Acreage | 0.2 |
| 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 $54,000, the tax amount paid for 20 Grant Avenue, Islip, NY 11751 is $25,111.
When was 20 Grant Avenue, Islip, NY 11751 last sold and what was the last sale price?20 Grant Avenue, Islip, NY 11751 was last sold in 11/15/2023 for $1,350,000.
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 20 Grant Avenue, 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 20 Grant Avenue, Islip, NY 11751. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $25,112 |
| Market value | $760,563 |
| Assessed value | $54,000 |
Here's the assessment & property tax history for 20 Grant Avenue, 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 | $518,310 | $36,800 | 40.799 | $15,014 | -1.35% |
| 2023-2024 | $505,495 | $36,800 | 41.357 | $15,219 | -2.03% |
| 2022-2023 | $444,444 | $36,800 | 42.213 | $15,534 | +4.32% |
| 2021-2022 | $396,552 | $36,800 | 40.466 | $14,891 | -0.71% |
| 2020-2021 | $379,381 | $36,800 | 40.757 | $14,999 | +6.26% |
The complete history of permits filed for 20 Grant Avenue, 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.
| Total population | 13,726 |
| Median age | 45.6 |
| Average household income | $136,601 |
| Family households | 67.4% |
| Occupied housing units | 5,040 |
| Owner occupied units | 83.4% |
| Average number of people per household | 2.71 |
| Median year structure built | 1965 |
| Median value for units with a mortgage | $586,500 |
| Median value for units without a mortgage | $514,700 |
Create a free account to unlock extended information for 20 Grant Avenue, 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 20 Grant Avenue, 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 |
Here are the neighbors for 20 Grant Avenue, Islip.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 168 Newman St, Brentwood | 06/16/2009 | $245,000 | |
| 51 Oakdale Ave, Central Islip | 2,424 | 04/21/2017 | $280,000 |
| 8 Leopold Ave, West Islip | 06/27/2006 | $320,000 | |
| 15 Lanier Ln, Bay Shore | 1,764 | 05/28/2017 | |
| 133 Sherman St, Brentwood | 08/21/2009 | $190,000 | |
| 367 Mohawk Pl, Holbrook | 11/07/2011 | $200,000 | |
| 3 W Spruce St, Islip | 02/26/2016 | $280,000 | |
| 6 Bella Casa Ln, Central Islip | 06/28/2006 | $410,000 | |
| 8 McGowan Ln, Central Islip | 1,164 | 10/26/2006 | $355,000 |
| 47 Minnesota Ave, Bay Shore | 04/10/2013 | $200,000 | |
| 811 Pine Ave, West Islip | 07/06/2022 | ||
| 21 Robbins Ave, Islip | 07/13/2015 | $322,000 | |
| 361 Macarthur Blvd, Hauppauge | 1,999 | 12/08/2021 | $711,000 |
| 204 Shore Dr, Oakdale | 11/17/2011 | $695,800 | |
| 265 Woodlawn Ave, Ronkonkoma | 2,336 | 07/06/2021 | $574,990 |
| 118 Center Bay Dr, West Islip | 1,395 | 05/31/2020 | $375,250 |
| 402 Myrtle Ave, West Islip | 06/28/2006 | $445,000 | |
| 20 Apallo Ln, Hauppauge | 11/13/2024 | ||
| 456 8th St, Bohemia | 06/22/2006 | $550,000 | |
| 1426 Hiram Ave, Holbrook | 620 | 04/26/2022 |