New York City  »  11215  »  Union St  »  670 Union St

670 Union Street #6a, Brooklyn, NY 11215 - Property report

Also known as: 670 Union St #6a

Property image for 670 Union Street #6a, Brooklyn, NY 11215
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Property type

Condo - Residential Unit in Elevator Building (R4)

Lot sq. ft.

6,668

Sale price

$3,066,488

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
670 Union Street #6a
ZIP code
11215
Neighborhood
Park Slope
Borough
Brooklyn
Block & lot
00955-1213

Owner

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Building
Property type
Condo - Residential Unit in Elevator Building (R4)
Unit sq. ft.
1,737
Buildings on lot
1
Stories
6
Sales
Sale date
10/28/2022
Sale price
$3,066,488 - M
Tax
Tax year
2026-2027
Property tax
$25,913
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
14
Residential sq. ft.
Commercial units
10
Office sq. ft.
Retail sq. ft.
Lot
Distance to wide street
Lot sq. ft.
6,668

Area overview

Walk score
99 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
90 /100.  Biker's Paradise
School district
13
Community district
6

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

Ownership

Ownership information for 670 Union Street #6a, Brooklyn, NY

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

Sales history for 670 Union Street #6a, Brooklyn, NY 11215

Sale date Sale price Buyer name Seller name
10/28/2022 $3,066,488 XXXX, XXXXXX XXX-XXX XXXXX XX XXX

*Most recent sale on record for this property.

More about New York City property records.

Title documents

Date Type Amount Party 1 Party 2
11/08/2023 - R
10/26/2023 - D		 Assignment, Mortgage
(2023110201051001)		 XXXXXXX XXXXXXX XXXXXXXXX XXXXXXXXXXX XXXXXXXX XXXXX XXXX XXXXXXXX XXXXXXXXXXX
11/09/2022 - R
10/28/2022 - D		 Power of Attorney
(2022110800091003)		 XXXX XXXXXX XXXXX XX XXXXXXXX XXX XXX XXXXX XXXXXX XXXXX
11/09/2022 - R
10/28/2022 - D		 Mortgage
(2022110800091002)		 XXXX XXXXXX XXXXX XXXXXXXX XXXX
11/09/2022 - R
10/28/2022 - D		 Deed
(2022110800091001)		 XXXXXX XXXXX XX XXX XXXX XXXXXX
10/18/2022 - R
10/04/2022 - D		 Maps
(2022101800243002)		 XXX XXXXX XXXXXX XXXXXXXXXXX
10/18/2022 - R
08/04/2022 - D		 Condo Declaration
(2022101800243001)		 XXXXXX XXXXX XX XXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 670 Union Street #6a, 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
$25,913
Municipal exemptions
Recent tax assessments
Market value
$596,555
Assessed value
$268,449

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 $574,832 $258,674 $246,453 12.439% $30,656 $25,265 -1.04%
2024/25 $588,506 $264,827 $246,670 12.5% $30,834 $25,532 +2.16%
2023/24 $564,644 $254,090 $241,334 12.502% $30,172 $24,991 n/a
Permits

Permit information for 670 Union Street #6a, Brooklyn, NY

No recently recorded permits for this property.

More about New York City property records

Violations

HPD Violations

No recently recorded violations for this property.

Neighborhood

Park Slope residential market stats

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

Median sale price

$1,619,646

12.4% Y-o-Y

Median price/sq. ft.

$1,514

6.4% Y-o-Y

Brooklyn median sale price

$899,000

6% 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
-

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
-

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.20
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.20
P.S. 372 The Children S School NR No Public PK, K-8 436 0.21
P.S. 372 The Children S School NR No Public PK, K-8 436 0.21
Rivendell School NR No Private PK-K 103 0.23
Rivendell School NR No Private PK-K 103 0.23
P.S. 133 William A Butler 6 No Public PK, K-5 609 0.25
P.S. 133 William A Butler 6 No Public PK, K-5 609 0.25
Berkeley Carroll Elementary School NR No Private PK-12 940 0.26
Berkeley Carroll Elementary School NR No Private PK-12 940 0.26
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 372 The Children S School NR No Public PK, K-8 436 0.21
Berkeley Carroll Elementary School NR No Private PK-12 940 0.26
St Francis Xavier School NR No Private PK-8 175 0.28
Park Slope Christian Academy NR No Private PK, K-8 37 0.29
P.S. 77 NR No Public K-12 304 0.31
Ms 266 Park Place Community Middle School 4 No Public 6-8 69 0.31
Ms 51 William Alexander 7 No Public 6-8 1,026 0.34
Al-Madinah School NR No Private PK-12 790 0.39
Berkeley Carroll School NR No Private PK-12 977 0.40
The Math And Science Exploratory School 7 No Public 6-8 522 0.50
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Berkeley Carroll Elementary School NR No Private PK-12 940 0.26
P.S. 77 NR No Public K-12 304 0.31
Al-Madinah School NR No Private PK-12 790 0.39
Berkeley Carroll School NR No Private PK-12 977 0.40
Brooklyn High School of the Arts 5 No Public 9-12 927 0.50
Park Slope Collegiate 4 No Public 6-12 577 0.52
Cyberarts Studio Academy 2 No Public 9-12 298 0.52
Millennium Brooklyn High School 10 No Public 9-12 721 0.52
John Jay School for Law 3 No Public 9-12 461 0.52
New Dawn Charter High School 2 No Charter 9-12 233 0.65

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 670 Union Street #6a, Brooklyn, NY

119 Erasmus St, Brooklyn 625 Driggs Ave, Brooklyn 258 Winthrop St, Brooklyn 488 Jamaica Ave, Brooklyn

Nearby ZIP codes for 670 Union Street #6a, Brooklyn, NY

10004, New York City, NY 10005, New York City, NY 10038, New York City, NY 10271, New York City, NY 11201, New York City, NY 11204, New York City, NY 11205, New York City, NY 11213, New York City, NY 11216, New York City, NY 11217, New York City, NY 11218, New York City, NY 11219, New York City, NY 11220, New York City, NY 11225, New York City, NY 11226, New York City, NY 11228, New York City, NY 11230, New York City, NY 11231, New York City, NY 11232, New York City, NY 11238, New York City, NY

Frequently asked questions

What is the total square footage of 670 Union Street #6a, Brooklyn, NY 11215?

670 Union Street #6a, Brooklyn, NY 11215 has a total of 1,737 square feet.

When was 670 Union Street #6a, Brooklyn, NY 11215 last sold and what was the sale price?

670 Union Street #6a, Brooklyn, NY 11215 was last sold on 10/28/2022 for $3,066,488.

What is the assessed value of 670 Union Street #6a, Brooklyn, NY 11215?

670 Union Street #6a, Brooklyn, NY 11215 is currently assessed at $268,449.

What are the property taxes for 670 Union Street #6a, Brooklyn, NY 11215?

The property taxes for 670 Union Street #6a, Brooklyn, NY 11215 total $31,410.

How many residential units does this building have?

This building has 14 residential unit(s).

Disclaimer

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