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431 Union Street, Brooklyn, NY 11231 Property Information

431 Union Street, Brooklyn, NY 11231 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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431 Union Street, Brooklyn, NY 11231 1
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Address

Primary address 431 Union Street
Neighborhood Gowanus
Zip code 11231
Borough Brooklyn
Block & lot 00430-0070

Sales & Tax Overview for 431 Union Street, Brooklyn

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Tax class
Estimated property tax $7,166

Lot & Building Information for 431 Union Street, Brooklyn

Lot sq. ft. 2,000
Lot dimensions 20 ft x 100 ft
Property type Three Families (C0)
Building sqft 2,280
Building dimensions 20 ft x 38 ft
Buildings on lot 1
Stories 2
Structure type Brownstone
Building material Brick
Exterior wall Brick/masonry
Basement type Full
Year built 1899
Frontage Union Street (narrow)
Nearest wide street Hoyt Street
Distance to wide street
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Zoning & Use for 431 Union Street, Brooklyn

Zoning
Residential units (DOF) 3
Residential sqft

Area Overview

Walk Score
Transit Score
Bike Score


School district 15
Community district 6
Closest police station 0.52 Miles
Closest fire station 0.60 Miles

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 431 Union Street, Brooklyn

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Floor area ratio (FAR) for 431 Union Street, Brooklyn, NY 11231, including commercial and residential FAR, FAR as built and usable floor area.
Development maps such as planimetric, zoning, urban landscape, and HPD alternative enforcement program maps.
Violations for 431 Union Street, Brooklyn, NY 11231, including DOB violations, ECB violations, HPD violations and 311 complaints.

About 431 Union Street, Brooklyn

What is the year built & the total sq. ft. for 431 Union Street, Brooklyn, NY 11231?

431 Union Street, Brooklyn, NY 11231 was built in 1899 and has a total of 2,280 square feet.

What is the assessed value of 431 Union Street, Brooklyn, NY 11231 and the property tax paid?

Assessed at $152,400, the tax amount paid for 431 Union Street, Brooklyn, NY 11231 is $7,045. For the next year, the tax amount for 431 Union Street, Brooklyn, NY 11231 is estimated at $7,166.

When was 431 Union Street, Brooklyn, NY 11231 last sold?

431 Union Street, Brooklyn, NY 11231 was last sold in 08/04/2011.

How many residential units does this building have?

This building has 3 residential unit(s).

Ownership Information for 431 Union Street, Brooklyn

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Property owner name for 431 Union Street, Brooklyn, NY 11231
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Building contacts for 431 Union Street, Brooklyn, NY 11231
Building management:
Representatives (from permits):
Tenants:
Real Estate Reports:
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Past Sales & Property History for 431 Union Street, Brooklyn

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No recorded sales for this property.

Title Documents for 431 Union Street, Brooklyn

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Date Type Amount Party 1 Party 2 Doc image
11/01/2011 - R
08/04/2011 - D
Deed
(2011102700562001)
05/17/1979 - R Deed
(37930107300607)
           
           
           
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R: Recorded date
D: Document date

Property Taxes for 431 Union Street, Brooklyn

Access detailed property tax data for 431 Union Street, Brooklyn, NY 11231. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax: $7,045
Estimated property tax: $7,166
Tax assessor's market value: $2,540,000
Assessed value: $152,400

Assessment History for 431 Union Street, Brooklyn

Here's the assessment & property tax history for 431 Union Street, Brooklyn, including the evolution of the total tax rate and corresponding property tax.

Year Market value Assessed value Taxable Tax rate % Base tax Property tax Year over year change
2025/26 $2,540,000 $152,400 $35,506 19.843% $7,045 $7,045 +4.60%
2024/25 $2,678,000 $160,680 $33,534 20.085% $6,735 $6,735 +5.41%
2023/24 $3,199,000 $191,940 $31,814 20.085% $6,390 $6,390 +4.54%
2022/23 $2,657,000 $159,420 $30,097 20.309% $6,112 $6,112 +1.74%
2021/22 $2,352,000 $141,120 $30,097 19.963% $6,008 $6,008 -3.51%

Permits for 431 Union Street, Brooklyn

The complete history of permits filed for 431 Union Street, Brooklyn, 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.

Filing date Job type Job status Job description Initial cost
11/15/2025 Alteration
08/01/2025 Alteration
08/21/2018 Alteration type 2
         
         
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Gowanus Residential Market Stats

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

Median Sale Price
$1,150,000
-10.5% YoY
Median Price/Sqft
$1,352
11.7% YoY
Brooklyn Median Sale Price
$885,000
2.5% YoY

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

Risk

FEMA flood zone(s): X (See more on map)
Hurricane evacuation zone: 2 (See more on map)

Transportation

Distance to Subway
Closest station Smith St & President St at NE Corner
Station lines F-G
Distance (miles) 0.173
View subway map

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance to school (mi)
P.S. 32 Samuels Mills Sprole 6 Yes Public PK, K-5 452 0.04
P.S. 32 Samuels Mills Sprole 6 Yes Public PK, K-5 452 0.04
P.S. 58 The Carroll 8 No Public PK, K-5 751 0.25
P.S. 58 The Carroll 8 No Public PK, K-5 751 0.25
Hannah Senesh Community Day School NR No Private K-8 231 0.26

Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance to school (mi)
Hannah Senesh Community Day School NR No Private K-8 231 0.26
School For International Studies 5 No Public 6-12 782 0.33
P.S. 372 The Children S School NR No Public PK, K-8 436 0.41
Al-Madinah School NR No Private PK-12 790 0.46
Mary McDowell Friends School NR No Private 6-10 290 0.46

Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance to school (mi)
New Dawn Charter High School 2 No Charter 9-12 233 0.16
Cobble Hill School of American Studies 1 No Public 9-12 316 0.29
School For International Studies 5 No Public 6-12 782 0.33
Digital Arts and Cinema Technology High School 8 No Public 9-12 331 0.33
Al-Madinah School NR No Private PK-12 790 0.46

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 431 Union Street, Brooklyn

Here are the neighbors for 431 Union Street, Brooklyn, NY 11231.

Address Square feet Purchase date Purchase price
425 Union St, Brooklyn 2,760 01/12/2024
415 Union St, Brooklyn 3,000 01/11/2010
429 Union St, Brooklyn 3,165 12/19/1977
433 Union St, Brooklyn 1,938 11/08/2023 $1,875,000
441 Union St, Brooklyn 1,824 08/28/2024
451 Union St, Brooklyn 1,424 04/12/2021
419 Union St, Brooklyn 3,040 04/02/2009 $1,810,000
437 Union St, Brooklyn 2,723 03/04/2016
447 Union St, Brooklyn 1,088 07/28/2017
423 Union St, Brooklyn 2,280 05/26/1999
445 Union St, Brooklyn 1,392 02/16/1984
427 Union St, Brooklyn 3,165 03/09/2016 $2,760,000
439 Union St, Brooklyn 1,824 08/28/2024
421 Union St, Brooklyn 2,289 09/06/2001
417 Union St, Brooklyn 2,400 12/26/2024 $3,325,000
443 Union St, Brooklyn 1,760 06/15/1995
455 Union St, Brooklyn 1,040 11/24/2015
305 Bond St, Brooklyn 4,000 03/31/2017 $10,000
303 Bond St, Brooklyn 3,600 09/17/2020 $4,361,563
435 Union St, Brooklyn 2,972 10/25/2022
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