Suffolk County  »  11701  »  Deforest St  »  21 Deforest St

21 Deforest Street, Amityville, NY 11701 - Property report

Also known as: 21 Deforest St

Property image for 21 Deforest Street, Amityville, NY 11701
static Mapbox map

Property type

Manufacturing and Processing (710)

Year built

1956

Acreage

0.46

Sale price

$3,850,000

General information

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Address
Primary address
21 Deforest Street
ZIP code
11701
County
Suffolk
Village (SWIS code)
472001
Parcel ID
4-2-7

Owner

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Building
Property type
Manufacturing and Processing (710)
Building sq. ft.
17,677
Year built
1956
Sales
Sale date
06/02/2026
Sale price
$3,850,000
Arm's length
Tax
Tax year
2025-2026
Current property tax
$50,992
Lot
Acreage
0.46

Area overview

Walk score
73 /100.  Very Walkable
Transit score
0 /100.  Minimal Transit
Bike score
49 /100.  Somewhat Bikeable
School district
472005

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

Ownership

Ownership information for 21 Deforest Street, Amityville, NY

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

Sales history for 21 Deforest Street, Amityville, NY 11701

Sale date Sale price Buyer name Seller name
06/02/2026 $3,850,000 XXX XXXXXXXX, XXX XX XXXXXXXX, XXX
11/23/2016 $626,663 XXXXXXXXXX XXXXXXXX XXXXXXXX XXX XXXXXXX XXXXX X

*Most recent sales on record for this property.

More about Suffolk County property records.

Title documents

Date Type Amount Party 1 Party 2
06/02/2026 - R Deed XX XXXXXXXX, XXX XXX XXXXXXXX, XXX
06/29/2022 - R
01/07/2022 - D		 Deed XXXXXXXXXX XXXXXXXX XXXXXXXX XXX XX XXXXXXXX XXX
12/28/2016 - R
11/23/2016 - D		 Deed
(Bargain and sale)		 XXXXXXX XXXXX X XXXXXXXXXX XXXXXXXX XXXXXXXX XXX
01/25/2010 - R
01/15/2010 - D		 Deed XXXX XXXXXXXXX XXXXXXX XXXXX XX XXXXXXX XXX XXXXXX XXX
04/18/2003 - R
02/26/2003 - D		 Deed XXXXX XXXXXX XXXX XXXXX XXXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21 Deforest Street, Amityville, 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
$50,992
Recent tax assessments
Market value
$2,757,627
Assessed value
$16,270

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 $2,757,627 $16,270 313.4108 $50,992 +3.49%
2024-2025 $2,428,358 $16,270 302.8276 $49,270 +4.35%
2023-2024 $2,465,152 $16,270 290.2034 $47,216 +2.49%
2022-2023 $2,085,897 $16,270 283.1517 $46,069 -0.50%
2021-2022 $1,870,115 $16,270 284.5734 $46,300 +1.40%
2020-2021 $1,787,912 $16,270 280.6498 $45,662 +2.51%
2019-2020 $1,677,320 $16,270 273.7748 $44,543 +1.35%
2018-2019 $1,520,561 $16,270 270.1163 $43,948 +17.30%
2017-2018 $1,452,679 $16,270 230.28 $37,467 +2.81%
2016-2017 $1,378,814 $16,270 223.9833 $36,442 -11.44%
Permits

Permit information for 21 Deforest Street, Amityville, NY

No recently recorded permits for this property.

Neighborhood

Amityville residential market stats

Access a detailed real estate market overview of Amityville so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Amityville and compare it to other neighborhoods in Suffolk.

Median sale price

$680,000

9.7% Y-o-Y

Median price/sq. ft.

$394

2.9% Y-o-Y

Suffolk county median sale price

$677,000

5.9% Y-o-Y

Demographics by ZIP code

Total population
29,509
Median age
42.6
Average household income
$150,763
Family households
67.8%
People per household (average)
3.1
Occupied housing units
9,340
Owner-occupied units
70.8%
Median year structure built
1970
Median value mortgaged units
$544,400
Median value unmortgaged units
$464,600

Risk

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FEMA flood zones

FEMA flood zones
X

Transportation

Daily traffic map
View daily traffic map

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Neighbors for 21 Deforest Street, Amityville, NY

9 Deforest St, Amityville 225 Dixon Ave, Amityville 566 Broadway, Amityville 25 Deforest St, Amityville 27 Deforest St, Amityville 333 Bayview Ave, Amityville 10 Edison St, Amityville 21 Maple Dr, Amityville 415 Bayview Ave, Amityville 13 Edison St, Amityville 560 Broadway, Amityville 369 Bayview Ave, Amityville 243-251 Dixon Ave, Amityville 10 Marconi Blvd, Amityville

Nearby ZIP codes for 21 Deforest Street, Amityville, NY

11702, Suffolk County, NY 11703, Suffolk County, NY 11704, Suffolk County, NY 11714, Nassau County, NY 11726, Suffolk County, NY 11729, Suffolk County, NY 11735, Nassau County, NY 11735, Suffolk County, NY 11746, Suffolk County, NY 11747, Suffolk County, NY 11756, Nassau County, NY 11757, Suffolk County, NY 11762, Nassau County, NY 11783, Nassau County, NY 11793, Nassau County, NY 11795, Suffolk County, NY 11798, Suffolk County, NY 11804, Nassau County, NY

Frequently asked questions

What is the year built for 21 Deforest Street, Amityville, NY 11701?

The development at 21 Deforest Street, Amityville, NY 11701 was built in 1956.

What is the market value of 21 Deforest Street, Amityville, NY 11701?

The current market value of 21 Deforest Street, Amityville, NY 11701 is $2,757,627.

What is the total square footage of 21 Deforest Street, Amityville, NY 11701?

21 Deforest Street, Amityville, NY 11701 has a total of 17,677 square feet.

What is the price per square foot for this property?

$217 per square foot is the price for 21 Deforest Street, Amityville, NY 11701.

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