Suffolk County  »  11725  »  Diellen CT  »  9 Diellen CT

9 Diellen Court, Commack, NY 11725 - Property report

Also known as: 9 Diellen CT

Property image for 9 Diellen Court, Commack, NY 11725
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Property type

One Family Year-Round Residence (210)

Year built

1958

Acreage

0.23

Sale price

$815,000

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
9 Diellen Court
ZIP code
11725
County
Suffolk
Village (SWIS code)
472689
Parcel ID
224-300-44

Owner

Find out who owns 9 Diellen Court, Commack, NY 11725. Uncover corporate and individual owners with a free account.

Sales
Sale date
06/13/2025
Sale price
$815,000
Arm's length
Tax
Tax year
2025-2026
Current property tax
$13,066
Zoning & Use
Zoning
Residence District (R-40)
Building
Property type
One Family Year-Round Residence (210)
Year built
1958
Lot
Acreage
0.23

Area overview

Walk score
76 /100.  Very Walkable
Transit score
0 /100.  Minimal Transit
Bike score
47 /100.  Somewhat Bikeable
School district
472610

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

Ownership

Ownership information for 9 Diellen Court, Commack, NY

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

Sales history for 9 Diellen Court, Commack, NY 11725

Sale date Sale price Buyer name Seller name
06/13/2025 $815,000 XXXXXXX X'XXXXXX; XXXX XXXXXXXXXX XXXXXX XXXXXX, XX
07/07/2022 $610,000 XXXXXX XXXXXX XXXXXXX XXXXXXXX; XXXXXXX XXXXXXXX

*Most recent sales on record for this property.

More about Suffolk County property records.

Title documents

Date Type Amount Party 1 Party 2
07/22/2025 - R
06/13/2025 - D		 Deed XXXXXX XXXXXX, XX XXXXXXX X'XXXXXX
08/29/2022 - R
07/07/2022 - D		 Deed
(Bargain and sale)		 XXXXXXX XXXXXXXX XXXXXX XXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 9 Diellen Court, Commack, NY

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

Current property tax
Tax year
2025-2026
Property tax
$13,066
Recent tax assessments
Market value
$622,223
Assessed value
$2,800

More about Suffolk 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
2025-2026 $622,223 $2,800 466.635 $13,066 +3.89%
2024-2025 $571,428 $2,800 449.161 $12,577 +9.51%
2023-2024 $509,090 $2,800 410.173 $11,485 +3.32%
2022-2023 $437,500 $2,800 396.994 $11,116 +1.57%
2021-2022 $378,379 $2,800 390.86 $10,944 +0.29%
2020-2021 $378,378 $2,800 389.737 $10,913 +1.74%
2019-2020 $368,421 $2,800 383.065 $10,726 +3.10%
2018-2019 $350,000 $2,800 371.547 $10,403 +1.63%
2017-2018 $333,333 $2,800 365.57 $10,236 +1.79%
2016-2017 $329,412 $2,800 359.139 $10,056 +3.17%
Permits

Permit information for 9 Diellen Court, Commack, 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
View daily traffic map

Access the detailed traffic volume map for 9 Diellen Court, Commack, NY 11725 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
The Jewish Academy NR Private K-8 0 0.76
Burr Intermediate School 7 Public 3-5 681 0.84
Nassau Suffolk Services for Autism NR Private 25 0.85
Nassau/Suffolk Services-Autistic NR Private 0 0.85
The Children's Center At Ucp NR Private 53 1.14
Sawmill Intermediate School 6 Public 3-6 574 1.19
Holy Family Regional School NR Private PK-8 163 1.20
Wood Park School NR Public K-2 288 1.52
Harley Avenue Elementary School NR Public K-2 403 1.59
Rolling Hills School NR Public K-2 229 1.70
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
The Jewish Academy NR Private K-8 0 0.76
Nassau Suffolk Services for Autism NR Private 25 0.85
Nassau/Suffolk Services-Autistic NR Private 0 0.85
The Children's Center At Ucp NR Private 53 1.14
Holy Family Regional School NR Private PK-8 163 1.20
Commack Middle School 7 Public 6-8 1,322 1.44
Elwood Middle School 6 Public 6-8 461 2.26
East Northport Middle School 6 Public 5-8 667 2.63
Candlewood Middle School 6 Public 6-8 719 3.21
Accompsett Middle School 7 Public 6-8 532 3.50
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Nassau Suffolk Services for Autism NR Private 25 0.85
Nassau/Suffolk Services-Autistic NR Private 0 0.85
The Children's Center At Ucp NR Private 53 1.14
UCP-Assoc Greater Suffolk NR Private 0 1.21
Commack High School 9 Public 9-12 1,861 1.59
Sappo School NR Private K-12 67 1.72
Elwood John Glenn High School 8 Public 9-12 681 2.26
Smithtown High School West 10 Public 9-12 1,270 3.35
Brentwood Res Center NR Public 9-10, 12 11 3.48
Western Suffolk Boces NR Public K-12 761 3.57

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

Neighbors for 9 Diellen Court, Commack, NY

32 Larry Dr, Commack 36 Larry Dr, Commack 2 Diellen CT, Commack 33 Patricia Dr, Commack 31 Patricia Dr, Commack 42 Larry Dr, Commack 35 Patricia Dr, Commack 3 Diellen CT, Commack 48 Wiltshire Dr, Commack 1 Diellen CT, Commack 10 Diellen CT, Commack 34 Larry Dr, Commack 38 Larry Dr, Commack 5 Diellen CT, Commack 41 Larry Dr, Commack 8 Diellen CT, Commack 40 Larry Dr, Commack 37 Patricia Dr, Commack 6 Diellen CT, Commack 7 Diellen CT, Commack

Nearby ZIP codes for 9 Diellen Court, Commack, NY

11703, Suffolk County, NY 11717, Suffolk County, NY 11718, Suffolk County, NY 11721, Suffolk County, NY 11722, Suffolk County, NY 11729, Suffolk County, NY 11731, Suffolk County, NY 11740, Suffolk County, NY 11746, Suffolk County, NY 11749, Suffolk County, NY 11751, Suffolk County, NY 11752, Suffolk County, NY 11754, Suffolk County, NY 11767, Suffolk County, NY 11768, Suffolk County, NY 11780, Suffolk County, NY 11787, Suffolk County, NY 11788, Suffolk County, NY 11795, Suffolk County, NY 11798, Suffolk County, NY

Frequently asked questions

What is the year built for 9 Diellen Court, Commack, NY 11725?

The development at 9 Diellen Court, Commack, NY 11725 was built in 1958.

When was 9 Diellen Court, Commack, NY 11725 last sold and what was the sale price?

9 Diellen Court, Commack, NY 11725 was last sold on 06/13/2025 for $815,000.

What is the assessed value of 9 Diellen Court, Commack, NY 11725?

9 Diellen Court, Commack, NY 11725 is currently assessed at $2,800.

What are the property taxes for 9 Diellen Court, Commack, NY 11725?

The property taxes for 9 Diellen Court, Commack, NY 11725 total $13,065.

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