| Primary address | 9 Dupont Court, Greenvale |
| Zip code | 11548 |
| County | Nassau |
| Town/City | Oyster Bay |
| Village (swiss code) | Brookville |
| Parcel ID | 19-A-586 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Building sqft | 10,597 |
| Building class | Estates - Luxurious Residence (250.01) |
| Land | Primary site |
| Topography | Level |
| Acreage | 5.083 |
| Buildings on lot | 1 |
| Year built | 2004 |
| Stories | 2 |
| Style | Mansion, Estate |
| Rooms | 15 |
| Bathrooms | 7 |
| Half bathrooms | 3 |
| Attic | None |
| Basement | Full |
| Exterior wall | Brick |
| Heating type | Central/AC |
| Heating system | Central w ac |
| Fireplace | 4 |
| School district | Jericho UFSD |
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:
9 Dupont Court, Greenvale, NY 11548 was built in 2004 and has a total of 10,597 square feet.
What is the assessed value of 9 Dupont Court, Greenvale, NY 11548 and the property tax paid?Assessed at $4,314, the tax amount paid for 9 Dupont Court, Greenvale, NY 11548 is $97,971.
When was 9 Dupont Court, Greenvale, NY 11548 last sold and what was the last sale price?9 Dupont Court, Greenvale, NY 11548 was last sold in 07/16/2003 for $1,150,000.
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 9 Dupont Court, Greenvale, including title documents, transfer conditions, mortgages and liens.
| Purchase date | Purchase price | Buyer name | Seller name |
|---|---|---|---|
| 07/16/2003 | $1,150,000 | 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 9 Dupont Court, Greenvale, NY 11548. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2026 |
| Base tax | $97,971 |
| Current property tax | $94,610 |
| Tax class | Register |
| Market value | $4,314,000 |
| Assessed value | $4,314 |
Here's the assessment & property tax history for 9 Dupont Court, Greenvale, 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 |
|---|---|---|---|---|---|
| 2026 | $4,314,000 | $4,314 | 2271.008 | $97,971 | +2.28% |
| 2025 | $4,320,000 | $4,320 | 2217.344 | $95,789 | -9.57% |
| 2024 | $5,545,800 | $4,488 | 2360.144 | $105,923 | -7.56% |
| 2023 | $4,812,000 | $4,812 | 2381.292 | $114,588 | +0.20% |
| 2022 | $4,317,000 | $4,317 | 2649.022 | $114,358 | -6.14% |
The complete history of permits filed for 9 Dupont Court, Greenvale, 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 9 Dupont Court, Greenvale, 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 Dupont Court, Greenvale 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) |
|---|---|---|---|---|---|
| Harbor Hill School | 7 | Public | K-5 | 584 | 0.71 |
| Glen Head Elementary School | 10 | Public | K-5 | 371 | 1.55 |
| Glenwood Landing Elementary School | 9 | Public | K-5 | 427 | 1.61 |
| The Green Vale School | NR | Private | PK-8 | 417 | 1.87 |
| The Green Vale School | NR | Private | PK-8 | 417 | 1.87 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| The Green Vale School | NR | Private | PK-8 | 417 | 1.87 |
| North Shore Middle School | 9 | Public | K-8 | 646 | 2.01 |
| Holy Child Academy | NR | Private | PK-8 | 147 | 2.21 |
| Roslyn Middle School | 8 | Public | 6-8 | 766 | 2.32 |
| Willets Road School | 8 | Public | 5-7 | 404 | 2.90 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Roslyn High School | 9 | Public | 9-12 | 1,035 | 1.91 |
| North Shore Senior High School | 9 | Public | K-5, 9-12 | 764 | 2.10 |
| Henry Viscardi School | NR | Private | K-12 | 0 | 3.18 |
| Whispering Pines School | NR | Private | PK-10 | 131 | 3.23 |
| Westbury High School | 5 | Public | 9-12 | 1,541 | 3.24 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 9 Dupont Court, Greenvale.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 2 Horse Hill Rd, Glen Head | 4,716 | 03/21/2019 | $1,834,000 |
| 8 Rolling Dr, Glen Head | 3,530 | 11/24/2025 | $2,350,000 |
| 7 Dupont CT, Greenvale | 13,489 | 02/12/2004 | $2,350,000 |
| 1554 Old Cedar Swamp Rd, Glen Head | 5,592 | 05/01/1998 | $920,000 |
| 183 Wheatley Rd, Glen Head | 2,100 | 04/28/1993 | $415,000 |
| 5 Dupont CT, Greenvale | 11,494 | 06/30/2022 | $8,300,000 |
| 15 Dupont CT, Greenvale | 16,248 | 05/24/2024 | $14,600,000 |
| 11 Dupont CT, Roslyn | 10,853 | 09/25/2003 | $1,200,000 |
| 1 Dupont CT, Greenvale | 23,155 | ||
| 1552 Old Cedar Swamp Rd, Glen Head | 3,005 | 05/22/2025 | $110,000 |
| 181 Wheatley Rd, Glen Head | 1,575 | ||
| 1574 Old Cedar Swamp Rd, Glen Head | 5,597 | 08/10/2022 | $3,200,000 |
| 21 Old Wheatley Rd, Glen Head | 6,484 | 07/28/2025 | $5,425,000 |