Nassau County  »  11548  »  Dupont CT  »  7 Dupont CT

7 Dupont Court, Greenvale, NY 11548 - Property report

Also known as: 7 Dupont CT

Property image for 7 Dupont Court, Greenvale, NY 11548
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Property type

Estates - Luxurious Residence (250.01)

Year built

2007

Acreage

5.616

Sale price

$2,350,000

General information

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Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

Address
Primary address
7 Dupont Court
ZIP code
11548
County
Nassau
Town/City
Oyster Bay
Village (SWIS code)
Brookville
Parcel ID
19-A-587

Owner

Find out who owns 7 Dupont Court, Greenvale, NY 11548. Uncover corporate and individual owners with a free account.

Sales
Sale date
02/12/2004
Sale price
$2,350,000
Arm's length
Tax
Tax year
2026
Current property tax
$99,720
Tax class
Building
Property type
Estates - Luxurious Residence (250.01)
Building sq. ft.
13,489
Buildings on lot
1
Stories
2
Year built
2007
Rooms
19
Bathrooms
8
Half bathrooms
4
Exterior wall
Masonry
Building style
Mansion, Estate
Basement
Full
Attic
Unfinished
Fireplaces
5
Heating type
Central/AC
Heating system
Central w ac
Lot
Acreage
5.616
Topography
Level
Land
Primary site

Area overview

Walk score
13 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
21 /100.  Somewhat Bikeable
School district
3015

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 7 Dupont Court, Greenvale, NY

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 7 Dupont Court, Greenvale, NY 11548

Sale date Sale price Buyer name Seller name
02/12/2004 $2,350,000 XXXXXX XXXXXX XXXXXX XXXX
08/01/2003 $1,200,000 XXXXXX XXXXXX XXXXXX XXXX XXXXXX XXXXXXX XXX

*Most recent sales on record for this property.

More about Nassau County property records.

Title documents

Date Type Amount Party 1 Party 2
07/31/2025 - R
06/13/2025 - D		 Mortgage
(Mtg-Mortgage)		 XXXXX XXX X XXXXXXXX XXXXX XXXX XX
07/31/2025 - R Other
(Mortgage Agreement)		 XXXXX XXX X XXXXXXXX XXXXX XXXX XX
07/31/2025 - R Assignment
(Assign Mortgage)		 XXXXXXXXXXXX XXX XXXXXXXX XXXXX XXXX XX
07/31/2025 - R Assignment
(Assign Mortgage)		 XXXXXXXX XX XXXXXXXX XXXXX XXXX XX
07/31/2025 - R Other
(Power of Attorney)		 XXXXX XXX X XXXXX XXXX X
03/12/2004 - R
02/12/2004 - D		 Deed XXXXXX XXXXXX XXXXXX XXXX
09/10/2003 - R
08/01/2003 - D		 Deed XXXXXX XXXXXXX XXX XXXXXX XXXXXX XXXXXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 7 Dupont Court, Greenvale, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2026
Property tax
$99,720
Current school tax
Recent tax assessments
Market value
$4,391,000
Assessed value
$4,391
Transitional assessed value

More about Nassau County Property Taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2026 $4,391,000 $4,391 2271.008 $99,720 +4.10%
2025 $4,320,000 $4,320 2217.344 $95,789 -11.00%
2024 $4,800,000 $4,560 2360.144 $107,623 -5.84%
2023 $4,800,000 $4,800 2381.292 $114,302 -23.54%
2022 $5,643,000 $5,643 2649.022 $149,484 -6.14%
2021 $5,324,000 $5,324 2991.401 $159,262 +4.84%
2020 $4,760,000 $11,900 1276.498 $151,903 -18.61%
2019 $6,166,000 $15,415 1210.74 $186,636 +5.68%
2018 $6,166,000 $15,415 1145.614 $176,596 +5.30%
2017 $6,120,000 $15,300 1096.099 $167,703 -17.53%
Permits

Permit information for 7 Dupont Court, Greenvale, NY

No recently recorded permits for this property.

Neighborhood

Risk

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FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Harbor Hill School 7 Public K-5 584 0.79
Glen Head Elementary School 10 Public K-5 371 1.57
Glenwood Landing Elementary School 9 Public K-5 427 1.66
The Green Vale School NR Private PK-8 417 1.80
The Green Vale School NR Private PK-8 417 1.80
North Shore Middle School 9 Public K-8 646 2.04
North Shore Senior High School 9 Public K-5, 9-12 764 2.13
Holy Child Academy NR Private PK-8 147 2.21
Holy Child Academy NR Private PK-8 147 2.21
East Hills Elementary School 8 Public K, 2-5 565 2.25
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
The Green Vale School NR Private PK-8 417 1.80
North Shore Middle School 9 Public K-8 646 2.04
Holy Child Academy NR Private PK-8 147 2.21
Roslyn Middle School 8 Public 6-8 766 2.38
Willets Road School 8 Public 5-7 404 2.94
Whispering Pines School NR Private PK-10 131 3.22
Long Island Lutheran Middle & High School NR Private 6-12 439 3.23
Henry Viscardi School NR Private K-12 0 3.24
Wheatley School 10 Public 8-12 666 3.41
Westbury Middle School 4 Public 6-8 1,053 3.67
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Roslyn High School 9 Public 9-12 1,035 1.99
North Shore Senior High School 9 Public K-5, 9-12 764 2.13
Whispering Pines School NR Private PK-10 131 3.22
Westbury High School 5 Public 9-12 1,541 3.22
Long Island Lutheran Middle & High School NR Private 6-12 439 3.23
Henry Viscardi School NR Private K-12 0 3.24
Wheatley School 10 Public 8-12 666 3.41
Red Robin Country Day School NR Private 0 3.50
Searingtown School 9 Public K-5, 11 585 3.56
Vincent Smith School NR Private 2-12 46 3.62

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 7 Dupont Court, Greenvale, NY

2 Horse Hill Rd, Glen Head 8 Rolling Dr, Glen Head 9 Dupont CT, Greenvale 1554 Old Cedar Swamp Rd, Glen Head 183 Wheatley Rd, Glen Head 5 Dupont CT, Greenvale 15 Dupont CT, Greenvale 11 Dupont CT, Roslyn 1 Dupont CT, Greenvale 1552 Old Cedar Swamp Rd, Glen Head 181 Wheatley Rd, Glen Head 21 Old Wheatley Rd, Glen Head

Nearby ZIP codes for 7 Dupont Court, Greenvale, NY

11030, Nassau County, NY 11501, Nassau County, NY 11507, Nassau County, NY 11514, Nassau County, NY 11530, Nassau County, NY 11542, Nassau County, NY 11545, Nassau County, NY 11547, Nassau County, NY 11560, Nassau County, NY 11568, Nassau County, NY 11576, Nassau County, NY 11577, Nassau County, NY 11579, Nassau County, NY 11590, Nassau County, NY 11596, Nassau County, NY 11732, Nassau County, NY 11753, Nassau County, NY 11765, Nassau County, NY 11801, Nassau County, NY

Frequently asked questions

What is the year built for 7 Dupont Court, Greenvale, NY 11548?

The development at 7 Dupont Court, Greenvale, NY 11548 was built in 2007.

What is the total square footage of 7 Dupont Court, Greenvale, NY 11548?

7 Dupont Court, Greenvale, NY 11548 has a total of 13,489 square feet.

When was 7 Dupont Court, Greenvale, NY 11548 last sold and what was the sale price?

7 Dupont Court, Greenvale, NY 11548 was last sold on 02/12/2004 for $2,350,000.

What is the assessed value of 7 Dupont Court, Greenvale, NY 11548?

7 Dupont Court, Greenvale, NY 11548 is currently assessed at $4,391.

What are the property taxes for 7 Dupont Court, Greenvale, NY 11548?

The property taxes for 7 Dupont Court, Greenvale, NY 11548 total $99,719.

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