Kings  »  11231  »  Union St  »  450 Union St

450 Union Street, Brooklyn, NY 11231 - Property report

Also known as: 450 Union St

Property image for 450 Union Street, Brooklyn, NY 11231
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Property type

Elevator Apartment - Semi-Fireproof with Stores (D7)

Year built

2025

Lot sq. ft.

28,500

Sale price

$40,650,000

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
450 Union Street
Alternate address(es)
452 Union St
ZIP code
11231
Neighborhood
Gowanus
Borough
Brooklyn
Block & lot
00438-0007

Owner

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Building
Property type
Elevator Apartment - Semi-Fireproof with Stores (D7)
Building sq. ft.
213,934
Building dimensions
100 ft x 165 ft
Buildings on lot
2
Stories
21
Year built
2025
Building material
Sales
Sale date
09/14/2022
Sale price
$40,650,000
Tax
Tax year
2026-2027
Property tax
$101,461
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
158
Residential sq. ft.
Office sq. ft.
Retail sq. ft.
Lot
Lot dimensions
80 ft x 300 ft
Lot sq. ft.
28,500

Area overview

Walk score
97 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
94 /100.  Biker's Paradise
School district
15
Community district
6
Closest police station
0.62 Miles
Closest fire station
0.52 Miles

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

Ownership

Ownership information for 450 Union Street, Brooklyn, NY

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

Sales history for 450 Union Street, Brooklyn, NY 11231

Sale date Sale price Buyer name Seller name
09/14/2022 $40,650,000 XXXX XXXXX XXX XXX XXXXXX XXXXX XXXXXX XXX XXX XXXXX XXX
09/09/2014 $12,300,000 XXX XXXXX XXX XXXXXX XXXXXX XXXXXXXX XXX XXX XXXXX XXXXXX XXXXXXXXXXX XXX
08/08/2003 $2,325,000 XXXXXXXX, XXX XXXXXXX XXXXXXX XXXXX, XXX.

*Most recent sales on record for this property.

More about New York City property records.

Title documents

Date Type Amount Party 1 Party 2
10/24/2025 - R
09/15/2025 - D		 Certificate
(2025102100836001)		 XXXX XXXXX XXX XXXX XXXXX XXX
08/01/2025 - R
07/22/2025 - D		 Declaration
(2025072400506007)		 XXXX XXXXX XXX
08/01/2025 - R
07/22/2025 - D		 Agreement
(2025072400506006)		 XXXX XXXXX XXX XXXX XXXXXXXX X X
08/01/2025 - R
07/22/2025 - D		 Mortgage
(2025072400506005)		 XXXX XXXXX XXX XXXX XXXXXXXX X X
08/01/2025 - R
07/22/2025 - D		 Agreement
(2025072400506003)		 XXXX XXXXX XXX XXXX XXXXXXXX X X
08/01/2025 - R
07/22/2025 - D		 Assignment, Mortgage
(2025072400506002)		 XXXXXX XXXXXXXX XXXX XX XXX XXXX XXXX XXXXXXXX X X
08/01/2025 - R
07/09/2025 - D		 Assignment, Mortgage
(2025072400506001)		 XXXXXX XXXXXXXX XXXX XX XXX XXXX XXXX XXXXXXXX X X
01/10/2025 - R
12/31/2024 - D		 Deed, Other
(2025010900594001)		 XXXX XXXXX XXX XXXX XXXXX XXX
01/17/2025 - R
10/28/2024 - D		 Sundry Miscellaneous
(2025011500173001)		 XXXX XXXXX XXX
08/15/2024 - R
03/09/2024 - D		 Mortgage
(2024081400964001)		 XXXX XXXXX XXX XXXXXX XXXXXXXX XXXX XX XXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 450 Union Street, Brooklyn, 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
$101,461
Municipal exemptions
Recent tax assessments
Market value
$2,861,000
Assessed value
$1,287,450

More about New York City 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 Taxable amount Tax rate Base tax Property tax Y-o-Y change
2025/26 $2,861,000 $1,287,450 $609,480 10.848% $66,116 $66,116 +52.33%
2024/25 $2,201,000 $990,450 $403,290 10.762% $43,402 $43,402 -72.96%
2023/24 $3,740,000 $1,683,000 $1,515,150 10.592% $160,485 $160,485 +11.57%
2022/23 $3,408,000 $1,533,600 $1,351,080 10.646% $143,836 $143,836 +10.49%
2021/22 $3,031,000 $1,363,950 $1,210,410 10.755% $130,180 $130,180 +7.70%
2020/21 $3,950,000 $1,777,500 $1,130,310 10.694% $120,875 $120,875 +20.19%
2019/20 $2,706,000 $1,217,700 $954,448 10.537% $100,570 $100,570 +10.88%
2018/19 $1,917,000 $862,650 $862,650 10.514% $90,699 $90,699 +3.90%
2017/18 $1,845,000 $830,250 $830,250 10.514% $87,292 $87,292 +37.07%
2016/17 $1,541,000 $693,450 $602,280 10.574% $63,685 $63,685 +9.62%
Permits

Permit information for 450 Union Street, Brooklyn, NY

Filing date Job type Job status Job description Initial cost
04/30/2026 Alteration
04/21/2026 New building
02/13/2026 Alteration
02/13/2026 Alteration
12/31/2025 Alteration

*Most recent permits on record for this property.

More about New York City property records

Violations

DOB Violations

No recently recorded violations for this property.

Neighborhood

Brooklyn commercial market stats

Review a detailed real estate market overview of Brooklyn and assess current trends, property values, property types sold and transaction volumes. View the median price per square foot in Brooklyn and compare it to other New York City boroughs.

Q2 2026 median price/sq. ft.

$533

1.5% Y-o-Y

Q1 2026 median price/sq. ft.

$471

-8.9% Y-o-Y

2025 median price/sq. ft.

$523

5.2% Y-o-Y

Check out recently sold homes in Brooklyn and see how their prices compare.

Risk

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FEMA flood zones

Property location map
FEMA flood zones
0.2,AE

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
2

Subway & traffic

Closest station
Smith St & President St at NE Corner
Station lines
F-G
Distance (miles)
0.287
View subway map

Access the detailed traffic volume map for 450 Union Street, Brooklyn, NY 11231 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

Neighbors for 450 Union Street, Brooklyn, NY

36 S 4th St, Brooklyn 1501 Nostrand Ave, Brooklyn 1511 E 9th St, Brooklyn 296 Cook St, Brooklyn 28 A Hart St, Brooklyn 45 A Brighton 10 CT, Brooklyn 675 E 83rd St, Brooklyn 443 Wortman Ave, Brooklyn 543 Eldert Ln, Brooklyn 35 Gaylord Dr N, Brooklyn 447 E 26th St, Brooklyn 890 E 34th St, Brooklyn 2311 A Pacific St, Brooklyn 23 Dewey Pl, Brooklyn 1945 64th St, Brooklyn 8816 Ditmas Ave, Brooklyn 632 Parkside Ave, Brooklyn 1309 E 64th St, Brooklyn 2236 79th St, Brooklyn 358 A 14th St, Brooklyn

Nearby ZIP codes for 450 Union Street, Brooklyn, NY

10002, New York City, NY 10004, New York City, NY 10005, New York City, NY 10006, New York City, NY 10007, New York City, NY 10038, New York City, NY 10271, New York City, NY 10278, New York City, NY 10279, New York City, NY 10280, New York City, NY 10282, New York City, NY 11201, New York City, NY 11205, New York City, NY 11215, New York City, NY 11217, New York City, NY 11218, New York City, NY 11219, New York City, NY 11220, New York City, NY 11232, New York City, NY 11238, New York City, NY

Frequently asked questions

What is the year built for 450 Union Street, Brooklyn, NY 11231?

The development at 450 Union Street, Brooklyn, NY 11231 was built in 2025.

What is the market value of 450 Union Street, Brooklyn, NY 11231?

The current market value of 450 Union Street, Brooklyn, NY 11231 is $2,861,000.

What is the total square footage of 450 Union Street, Brooklyn, NY 11231?

450 Union Street, Brooklyn, NY 11231 has a total of 213,934 square feet.

How many commercial spaces does this building have?

The number of commercial spaces in this building is 2.

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