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345 Union Street #401, Brooklyn, NY 11231 Property Information

345 Union Street #401, Brooklyn, NY 11231 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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345 Union Street #401, Brooklyn, NY 11231 2
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Address

Primary address 345 Union Street #401
Neighborhood Carroll Gardens
Zip code 11231
Borough Brooklyn
Block & lot 00428-1207

Sales & Tax Overview for 345 Union Street #401, Brooklyn

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Purchase date 09/07/2007
Purchase price $1,476,463
Tax class

Lot & Building Information for 345 Union Street #401, Brooklyn

Lot sq. ft. 4,500
Property type Condo - Residential Unit in 2-10 Unit Building (R1)
Building sqft 1,592
Buildings on lot 1
Stories 5
Year built 2007
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Zoning & Use for 345 Union Street #401, Brooklyn

Residential units (DOF) 1

Area Overview

Walk Score
Transit Score
Bike Score


School district 15
Community district 6

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

Unit Overview

Unit # 401
Square feet 1,592
Condo complex 301884

Other Property Data for 345 Union Street #401, Brooklyn

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Floor area ratio (FAR) for 345 Union Street #401, 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 345 Union Street #401, Brooklyn, NY 11231, including DOB violations, ECB violations, HPD violations and 311 complaints.

About 345 Union Street #401, Brooklyn

What is the year built & the total sq. ft. for 345 Union Street #401, Brooklyn, NY 11231?

345 Union Street #401, Brooklyn, NY 11231 was built in 2007 and has a total of 1,592 square feet.

What is the assessed value of 345 Union Street #401, Brooklyn, NY 11231 and the property tax paid?

Assessed at $405,758, the tax amount paid for 345 Union Street #401, Brooklyn, NY 11231 is $23,529.

When was 345 Union Street #401, Brooklyn, NY 11231 last sold and what was the last sale price?

345 Union Street #401, Brooklyn, NY 11231 was last sold in 09/07/2007 for $1,476,463.

How many residential units does this building have?

This building has 1 residential unit(s).

Ownership Information for 345 Union Street #401, Brooklyn

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Property owner name for 345 Union Street #401, Brooklyn, NY 11231
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Building contacts for 345 Union Street #401, 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 345 Union Street #401, Brooklyn

Create a free account to view the complete sales history for 345 Union Street #401, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

Sale date Sale price Buyer name Seller name
09/07/2007 $1,476,463

Title Documents for 345 Union Street #401, 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
06/01/2009 - R
05/06/2009 - D
Agreement
(2009052100205002)
06/01/2009 - R
04/17/2009 - D
Power of Attorney
(2009052100205001)
09/17/2007 - R
09/07/2007 - D
Power of Attorney
(2007091301529005)
09/17/2007 - R
09/07/2007 - D
Mortgage
(2007091301529004)
09/17/2007 - R
09/07/2007 - D
Deed
(2007091301529003)
09/17/2007 - R
08/29/2007 - D
Partial Release of Mortgage
(2007091301529001)
09/17/2007 - R
08/23/2007 - D
Power of Attorney
(2007091301529002)
08/16/2007 - R
08/07/2007 - D
Maps
(2007080701603002)
08/16/2007 - R
07/27/2007 - D
Condo Declaration
(2007080701603001)
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R: Recorded date
D: Document date

Property Taxes for 345 Union Street #401, Brooklyn

Access detailed property tax data for 345 Union Street #401, Brooklyn, NY 11231. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2026-2027
Property tax: $23,530
Tax assessor's market value: $901,683
Assessed value: $405,758

Assessment History for 345 Union Street #401, Brooklyn

Here's the assessment & property tax history for 345 Union Street #401, 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 $777,856 $350,036 $175,150 12.439% $21,787 $21,787 +7.47%
2024/25 $756,750 $340,538 $162,176 12.5% $20,272 $20,272 -0.02%
2023/24 $630,625 $283,782 $162,176 12.502% $20,275 $20,275 +26.27%
2022/23 $619,774 $278,898 $130,897 12.267% $19,277 $16,057 +34.38%
2021/22 $495,734 $223,080 $97,661 12.235% $17,803 $11,949 +40.30%

Permits for 345 Union Street #401, Brooklyn

The complete history of permits filed for 345 Union Street #401, 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.

No recorded permits for this property.

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.

Transportation

Distance to Subway
Closest station Smith St & President St at NW Corner
Station lines F-G
Distance (miles) 0.062
View subway map

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 58 The Carroll 8 No Public PK, K-5 751 0.13
P.S. 58 The Carroll 8 No Public PK, K-5 751 0.13
Pache Montessori NR No Private PK-K 122 0.17
Pache Montessori NR No Private PK-K 122 0.17
Hannah Senesh Community Day School NR No Private K-8 231 0.18

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 0.18
School For International Studies 5 No Public 6-12 782 0.21
Mary McDowell Friends School NR No Private 6-10 290 0.38
Brooklyn Heights Montessori School NR No Private PK-8 260 0.42
International School of Brooklyn NR No Private PK, K-8 0 0.43

Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Digital Arts and Cinema Technology High School 8 No Public 9-12 331 0.21
School For International Studies 5 No Public 6-12 782 0.21
New Dawn Charter High School 2 No Charter 9-12 233 0.22
Cobble Hill School of American Studies 1 No Public 9-12 316 0.27
Mary McDowell Friends School NR No Private 6-10 290 0.38

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

Neighbors for 345 Union Street #401, Brooklyn

Here are the neighbors for 345 Union Street #401, Brooklyn, NY 11231.

Address Square feet Purchase date Purchase price
701 Jefferson Ave, Brooklyn 4,056 08/14/2007 $793,217
1474 Royce St, Brooklyn 1,880 11/25/2019 $825,000
32 Troy Ave, Brooklyn 3,280 10/01/2007 $250,000
1307 Gates Ave, Brooklyn 3,900 06/04/2021 $950,000
208 Wilson Ave, Brooklyn 2,811 01/03/2020
92 Van Siclen Ave, Brooklyn 2,805 05/26/2009 $500,000
112 Pulaski St, Brooklyn 2,862 12/24/2025
1305 Gates Ave, Brooklyn 3,900 12/13/2018 $750,000
84 Van Siclen Ave, Brooklyn 2,805 09/07/2007 $636,000
1309 Gates Ave, Brooklyn 3,900 08/30/2024 $1,502,005
356 Logan St, Brooklyn 3,080 07/18/2025 $978,035
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