| Primary address | 9 Stony Brook Ext Road, Stony Brook |
| Zip code | 11790 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 250240 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Property tax | $17,866 |
| Building class | Schools (612) |
| Acreage | 0.27 |
| School district | Three Village |
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 $4,200, the tax amount paid for 9 Stony Brook Ext Road, Stony Brook, NY 11790 is $17,866.
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 9 Stony Brook Ext Road, Stony Brook, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 9 Stony Brook Ext Road, Stony Brook, NY 11790. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $17,866 |
| Market value | $792,453 |
| Assessed value | $4,200 |
Here's the assessment & property tax history for 9 Stony Brook Ext Road, Stony Brook, 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 | $792,453 | $4,200 | 408.764 | $17,168 | +5.13% |
| 2023-2024 | $777,778 | $4,200 | 388.818 | $16,330 | +1.20% |
| 2022-2023 | $677,419 | $4,200 | 384.195 | $16,136 | +2.22% |
| 2021-2022 | $567,568 | $4,200 | 375.859 | $15,786 | +1.41% |
| 2020-2021 | $545,455 | $4,200 | 370.648 | $15,567 | +3.17% |
The complete history of permits filed for 9 Stony Brook Ext Road, Stony Brook, 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 | 21,074 |
| Median age | 22.3 |
| Average household income | $204,466 |
| Family households | 76.3% |
| Occupied housing units | 4,455 |
| Owner occupied units | 90.5% |
| Average number of people per household | 2.82 |
| Median year structure built | 1965 |
| Median value for units with a mortgage | $638,700 |
| Median value for units without a mortgage | $599,200 |
Create a free account to unlock extended information for 9 Stony Brook Ext Road, Stony Brook, 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 9 Stony Brook Ext Road, Stony Brook to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
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Here are the neighbors for 9 Stony Brook Ext Road, Stony Brook.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 10 Stony Brook Ext Rd, Stony Brook | |||
| 15 Garden Ave, Stony Brook | 10/21/2021 | $649,000 | |
| 72 Garden Ave, Stony Brook | 08/04/2017 | ||
| 38 Quaker Path, Stony Brook | 1,672 | 07/18/2019 | $487,500 |
| 8 Stony Ext Rd, Stony Brook | |||
| 4 Stony Ext Rd, Stony Brook | 01/19/2005 | ||
| 3 Peggy Ln, Stony Brook | 2,348 | 02/08/2019 | |
| 9 Stony Rd, Stony Brook | 1,883 | 05/08/2023 | $735,000 |
| 7 Garden Ave, Stony Brook | 11/14/2025 | $785,000 | |
| 7 Stony Rd, Stony Brook | 1,768 | 11/19/2021 | $522,000 |
| 7 Peggy Ln, Stony Brook | |||
| 44 Woodbine Ave, Stony Brook | 2,203 | 04/18/2003 | |
| 18 Garden Ave, Stony Brook | 10/09/2009 | $355,000 | |
| 40 Quaker Path, Stony Brook | 901 | 02/18/2026 | $750,000 |
| 1 Stony Ext Rd, Stony Brook | 06/01/1999 | ||
| 3 Stony Rd, Stony Brook | 2,282 | 08/29/2014 | |
| 31 Houghton Blvd, Stony Brook | 1,743 | 05/28/2021 | $424,000 |