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601 Union Street, Brooklyn, NY 11215 Property Information

601 Union Street, Brooklyn, NY 11215 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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601 Union Street, Brooklyn, NY 11215 3
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Address

Primary address 601 Union Street
Secondary address 231-249 3rd Ave
Neighborhood Gowanus
Zip code 11215
Borough Brooklyn
Block & lot 00434-0001

Sales & Tax Overview for 601 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 12/23/2024
Purchase price $29,400,000 - M
Tax class

Lot & Building Information for 601 Union Street, Brooklyn

Lot sq. ft. 21,055
Lot dimensions 190 ft x 110.83 ft
Property type Zoned Commercial or Manhattan Residential (V1)
Buildings on lot 1
Status
Status date
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Zoning & Use for 601 Union Street, Brooklyn

Zoning
Qualified opportunity zone

Area Overview

Walk Score
Transit Score
Bike Score


School district 13
Community district 6
Closest police station 0.56 Miles
Closest fire station 0.46 Miles

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

Other Property Data for 601 Union Street, Brooklyn

New York property reports include comprehensive occupancy, development and violation information. Create a free account to access valuable data points such as:

Floor area ratio (FAR) for 601 Union Street, Brooklyn, NY 11215, 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 601 Union Street, Brooklyn, NY 11215, including DOB violations, ECB violations, HPD violations and 311 complaints.

Alternate Addresses

You will find all alternate addresses for the property in this section.

  • 231-249 3rd Ave, Brooklyn, NY 11215
  • 602-612 Sackett St, Brooklyn, NY 11215
  • 603-609 Union St, Brooklyn, NY 11215

About 601 Union Street, Brooklyn

What is the market value of 601 Union Street, Brooklyn, NY 11215?

The current market value is $421,000.

Ownership Information for 601 Union Street, Brooklyn

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Property owner name for 601 Union Street, Brooklyn, NY 11215
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Building contacts for 601 Union Street, Brooklyn, NY 11215
Building management:
Representatives (from permits):
Tenants:
Real Estate Reports:
Laura Pop-Badiu, Jun 11, 2026 NYC Business Leaders on RTO: Survey Reveals Hybrid Still Dominates, Office Attendance Set to Rise
Hubble’s recent survey of 126 founders, CEOs and other decision-makers in New York City’s startup ecosystem revealed how local business leaders are approaching workplace strategy in 2026 and beyond.
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
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Past Sales & Property History for 601 Union Street, Brooklyn

Create a free account to view the complete sales history for 601 Union Street, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

Sale date Sale price Buyer name Seller name
12/23/2024 $29,400,000

Title Documents for 601 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
04/16/2026 - D
04/16/2026 - R
Zoning Lot Description
(2026041600479002)
04/16/2026 - R
04/15/2026 - D
Certificate
(2026041600479001)
04/16/2026 - R
03/04/2026 - D
Declaration
(2026041600479004)
04/16/2026 - R
03/04/2026 - D
Declaration
(2026041600479003)
12/27/2024 - R
12/23/2024 - D
Mortgage
(2024122600781003)
12/27/2024 - R
12/23/2024 - D
Deed
(2024122600781002)
12/27/2024 - R
12/23/2024 - D
Termination of Lease or Memo
(2024122600781001)
11/02/2023 - R
10/16/2023 - D
Memorandum of Contract
(2023103000609001)
08/30/1989 - R Satisfaction of Mortgage
(3090001480509)
08/30/1989 - R Deed
(3650001480365)
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R: Recorded date
D: Document date

Property Taxes for 601 Union Street, Brooklyn

Access detailed property tax data for 601 Union Street, Brooklyn, NY 11215. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2026-2027
Property tax: $20,552
Tax assessor's market value: $421,000
Assessed value: $189,450

Assessment History for 601 Union Street, Brooklyn

Here's the assessment & property tax history for 601 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 $3,158,000 $1,421,100 $1,186,290 10.848% $128,689 $128,689 +7.08%
2024/25 $3,167,000 $1,425,150 $1,116,720 10.762% $120,181 $120,181 +10.13%
2023/24 $2,699,000 $1,214,550 $1,030,320 10.592% $109,131 $109,131 +5.07%
2022/23 $2,319,000 $1,043,550 $975,600 10.646% $103,862 $103,862 +16.76%
2021/22 $1,838,000 $827,100 $827,100 10.755% $88,955 $88,955 -11.46%

Permits for 601 Union Street, Brooklyn

The complete history of permits filed for 601 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
04/13/2026 New building
01/30/2026 Alteration
01/30/2026 Alteration
01/29/2026 Alteration type 3
01/06/2026 Full demolition
12/18/2025 Alteration
12/18/2025 Alteration
12/18/2025 Alteration
12/18/2025 Alteration
12/18/2025 Alteration
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Brooklyn Commercial Market Stats

Access a detailed real estate market overview of Brooklyn so you can assess current trends, property values, types of properties sold and transaction volume. View the median price per sqft in Brooklyn and compare it to other boroughs in New York City.

Median Price/Sqft Q1/2026
$444
-15% YoY
Median Price/Sqft Q4/2025
$523
9.6% YoY
Median Price/Sqft 2025
$523
5.9% 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: 4 (See more on map)

Transportation

Distance to Subway
Closest station 4th Ave & Union St at SW Corner
Station lines R
Distance (miles) 0.121
View subway map

Neighbors for 601 Union Street, Brooklyn

Here are the neighbors for 601 Union Street, Brooklyn, NY 11215.

Address Square feet Purchase date Purchase price
630 Sackett St, Brooklyn 5,700 08/30/2013 $900,000
557 Union St, Brooklyn 3,140 10/31/2016 $3,700,000
561 Union St, Brooklyn 1,000 01/29/2021 $2,340,000
204 4th Ave, Brooklyn 04/18/2023
555 Union St, Brooklyn 3,300 10/31/2016 $3,700,000
567 Union St, Brooklyn 5,875 07/15/2014 $10
571 Union St, Brooklyn 2,800 04/02/2026
638 Sackett St, Brooklyn 04/15/2018
654 Sackett St, Brooklyn 2,898 12/26/2012 $830,000
573 Union St, Brooklyn 3,840 07/13/2018
650 Sackett St, Brooklyn 3,848 03/16/2012 $1,400,000
643 Union St, Brooklyn 11/12/1996
644 Sackett St, Brooklyn 1,575 04/23/2012 $384,000
565 Union St, Brooklyn 4,500 09/25/1990
569 Union St, Brooklyn 4,150 09/29/2023 $10
625 Union St, Brooklyn 39,780 12/09/2013 $32,915,000
652 Sackett St, Brooklyn 5,510 12/26/2012 $830,000
645 Union St, Brooklyn 22,805 01/31/2018 $16,758,950
553 Union St, Brooklyn 1,800 04/18/2018
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