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405 Union Street, Brooklyn, NY 11231 Property Information

405 Union Street, Brooklyn, NY 11231 Property Information

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

Primary address 405 Union Street
Neighborhood Carroll Gardens
Zip code 11231
Borough Brooklyn
Block & lot 00429-0049

Sales & Tax Overview for 405 Union Street, Brooklyn

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

Purchase date 09/25/2024
Purchase price $4,275,000
Tax class

Lot & Building Information for 405 Union Street, Brooklyn

Lot sq. ft. 1,740
Lot dimensions 19.33 ft x 90 ft
Property type Three Families (C0)
Building sqft 3,094
Building dimensions 19.33 ft x 40 ft
Buildings on lot 1
Stories 3
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 405 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 0.46 Miles
Closest fire station 0.62 Miles

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

Other Property Data for 405 Union Street, Brooklyn

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Floor area ratio (FAR) for 405 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 405 Union Street, Brooklyn, NY 11231, including DOB violations, ECB violations, HPD violations and 311 complaints.

About 405 Union Street, Brooklyn

What is the year built & the total sq. ft. for 405 Union Street, Brooklyn, NY 11231?

405 Union Street, Brooklyn, NY 11231 was built in 1899 and has a total of 3,094 square feet.

What is the assessed value of 405 Union Street, Brooklyn, NY 11231 and the property tax paid?

Assessed at $233,580, the tax amount paid for 405 Union Street, Brooklyn, NY 11231 is $9,947.

When was 405 Union Street, Brooklyn, NY 11231 last sold and what was the last sale price?

405 Union Street, Brooklyn, NY 11231 was last sold in 09/25/2024 for $4,275,000.

How many residential units does this building have?

This building has 3 residential unit(s).

Ownership Information for 405 Union Street, Brooklyn

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Property owner name for 405 Union Street, Brooklyn, NY 11231
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Building contacts for 405 Union Street, Brooklyn, NY 11231
Building management:
Representatives (from permits):
Tenants:
Real Estate Reports:
Eliza Theiss, Jun 23, 2026 NYC Resale Gains & Losses: Every Borough Made Money in 2025, Except Manhattan
In 2025, NYC home-sellers mostly made money. But, in Manhattan, resales came with losses — and it was apartments and recent buyers that absorbed them.
Eliza Theiss, Jun 04, 2026 World Cup or Your Mortgage/Rent? Ticket Prices Rival Host City Housing Costs
World Cup ticket prices rival monthly housing expenses in the 11 U.S. host cities, with even the cheapest seats covering weeks or even months of rent or mortgage payments.
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Past Sales & Property History for 405 Union Street, Brooklyn

Create a free account to view the complete sales history for 405 Union Street, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

Sale date Sale price Buyer name Seller name
09/25/2024 $4,275,000
11/15/2021 $3,825,000
       
       
       
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Title Documents for 405 Union Street, Brooklyn

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Doc image
10/15/2024 - R
09/25/2024 - D
Agreement
(2024100900505001)
09/27/2024 - R
09/25/2024 - D
Deed
(2024092600108001)
09/27/2024 - R
09/04/2024 - D
Assignment, Mortgage
(2024092600108003)
09/27/2024 - R
09/04/2024 - D
Assignment, Mortgage
(2024092600108002)
12/20/2021 - R
12/06/2021 - D
Satisfaction of Mortgage
(2021121000588001)
11/30/2021 - R
11/15/2021 - D
Mortgage
(2021112100041004)
11/30/2021 - R
11/15/2021 - D
Deed
(2021112100041003)
11/30/2021 - R
11/10/2021 - D
Power of Attorney
(2021112100041002)
11/30/2021 - R
11/10/2021 - D
Power of Attorney
(2021112100041001)
09/08/2014 - R
03/13/2014 - D
Deed
(2014081800712001)
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R: Recorded date
D: Document date

Property Taxes for 405 Union Street, Brooklyn

Access detailed property tax data for 405 Union Street, Brooklyn, NY 11231. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2026-2027
Property tax: $9,948
Tax assessor's market value: $3,893,000
Assessed value: $233,580

Assessment History for 405 Union Street, Brooklyn

Here's the assessment & property tax history for 405 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 $4,470,000 $268,200 $47,296 19.843% $9,385 $9,385 +0.32%
2024/25 $4,031,000 $241,860 $46,579 20.085% $9,355 $9,355 +4.84%
2023/24 $3,592,000 $215,520 $44,429 20.085% $8,924 $8,924 -0.70%
2022/23 $3,024,000 $181,440 $44,249 20.309% $8,987 $8,987 +7.75%
2021/22 $2,942,000 $176,520 $41,777 19.963% $8,340 $8,340 +0.55%

Permits for 405 Union Street, Brooklyn

The complete history of permits filed for 405 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
04/01/2025 Alteration
11/06/2024 Alteration
06/24/2024 Alteration
06/24/2024 Alteration
02/05/2007 Alteration type 2
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Carroll Gardens Residential Market Stats

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

Median Sale Price
$2,100,000
17.5% YoY
Median Price/Sqft
$1,780
7.7% 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: 6 (See more on map)

Transportation

Distance to Subway
Closest station Smith St & President St at NE Corner
Station lines F-G
Distance (miles) 0.122
View subway map

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 32 Samuels Mills Sprole 6 Yes Public PK, K-5 452 0.07
P.S. 32 Samuels Mills Sprole 6 Yes Public PK, K-5 452 0.07
P.S. 58 The Carroll 8 No Public PK, K-5 751 0.20
P.S. 58 The Carroll 8 No Public PK, K-5 751 0.20
Hannah Senesh Community Day School NR No Private K-8 231 0.22

Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Hannah Senesh Community Day School NR No Private K-8 231 0.22
School For International Studies 5 No Public 6-12 782 0.28
Mary McDowell Friends School NR No Private 6-10 290 0.43
International School of Brooklyn NR No Private PK, K-8 0 0.46
International School of Brooklyn NR No Private PK-8 369 0.46

Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
New Dawn Charter High School 2 No Charter 9-12 233 0.15
Cobble Hill School of American Studies 1 No Public 9-12 316 0.26
Digital Arts and Cinema Technology High School 8 No Public 9-12 331 0.28
School For International Studies 5 No Public 6-12 782 0.28
Mary McDowell Friends School NR No Private 6-10 290 0.43

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

Neighbors for 405 Union Street, Brooklyn

Here are the neighbors for 405 Union Street, Brooklyn, NY 11231.

Address Square feet Purchase date Purchase price
399 A Union St, Brooklyn 3,094 05/25/2001
399 Union St, Brooklyn 3,094 07/29/2015 $1,900,000
395 Union St, Brooklyn 3,820 08/30/2011 $2,375,000
391 Union St, Brooklyn 3,200 09/19/2014 $1,669,000
292 Hoyt St, Brooklyn 2,025 07/12/2024 $2,999,999
393 Union St, Brooklyn 3,471 06/28/2025
403 Union St, Brooklyn 3,120 08/09/2006 $1,472,500
294 Hoyt St, Brooklyn 1,880 04/29/2021
290 Hoyt St, Brooklyn 1,880 02/04/1999
389 Union St, Brooklyn 3,200 05/23/1986
413 Union St, Brooklyn 3,252 02/12/1998
296 Hoyt St, Brooklyn 1,880 12/27/2012 $1,735,000
418 Sackett St, Brooklyn 3,675 04/08/1993
387 Union St, Brooklyn 2,748 10/09/2007
409 Union St, Brooklyn 3,112 11/24/2023
411 Union St, Brooklyn 3,093 02/26/2026 $3,700,000
401 Union St, Brooklyn 3,094 03/17/2025
397 Union St, Brooklyn 2,856 06/29/2024
407 Union St, Brooklyn 3,093 12/01/1995
414 Sackett St, Brooklyn 2,208 08/30/2022 $3,420,000
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