New York City  »  11215  »  Union St  »  830 Union St

830 Union Street, Brooklyn, NY 11215 - Property report

Also known as: 830 Union St

Property image for 830 Union Street, Brooklyn, NY 11215
static Mapbox map

Property type

Four Families (C3)

Year built

1920

Lot sq. ft.

1,800

General information

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Address
Primary address
830 Union Street
ZIP code
11215
Neighborhood
Park Slope
Borough
Brooklyn
Block & lot
01065-0011

Owner

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Building
Property type
Four Families (C3)
Building sq. ft.
3,910
Building dimensions
20 ft x 48 ft
Buildings on lot
1
Stories
3
Year built
1920
Last altered
1966
Building material
Stone
Exterior wall
None
Basement
N
Tax
Tax year
2026-2027
Property tax
$29,941
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
4
Residential sq. ft.
Commercial units
0
Office sq. ft.
Retail sq. ft.
Lot
Frontage(s)
Union Street (wide)
Distance to wide street
Lot dimensions
20 ft x 90 ft
Lot sq. ft.
1,800

Area overview

Walk score
99 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
91 /100.  Biker's Paradise
School district
15
Community district
6
Closest police station
0.46 Miles
Closest fire station
0.11 Miles

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

Ownership

Ownership information for 830 Union Street, Brooklyn, NY

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

Sales history for 830 Union Street, Brooklyn, NY 11215

No recently recorded sales for this property.

More about New York City property records.

Title documents

Date Type Amount Party 1 Party 2
01/03/2005 - R
12/28/2004 - D		 Deed
(2004122801815001)		 XXXXXX XXXXXX XXX XXXXX XXX
12/26/2002 - R Agreement
(3420009026242)		 XXXXXXXXXXXX XXXXXXXXX XXXXXX XXXX XXXXXX XXXXXX
12/19/2002 - R Initial UCC1
(3980008951698)		 XXXXXX XXXXXX XXXXXXXXXXXX XXXXXXXXX XXXXXX XXXX
08/17/2000 - R Agreement
(3960007303996)
08/17/2000 - R Assignment, Mortgage
(3500007304050)		 XXXXXXXXXXXX XXXXXXXXX XXXX XXXXXXXXXXXX XXXXXXXXX XXXXXX XXXX
11/02/1995 - R Agreement
(3540004985454)		 XXXXXX XXXXXX XXXXXXXXXXXX XXXXXXXXXXX
11/02/1995 - R Assignment, Mortgage
(3450004986145)		 XXXXXXX XXXXXXXX XXXXXXXXXXXX XXXXXXXXXXX
11/02/1995 - R Assignment, Mortgage
(3750004985475)		 XXXXXXXX XXXX XX XXXXXXX XXXXXXX XXXXXXXX X
10/25/1995 - R Initial UCC1
(3050004911505)		 XXXXXX XXXXXX XXXXXXXXXXXX XXXXXXXXXXX
06/17/1992 - R Assignment, Mortgage
(3860001693686)		 XXXXXXX XXXXXXXX X XXXXXXXX XXXX XX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 830 Union Street, 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
$29,941
Municipal exemptions
Recent tax assessments
Market value
$2,789,000
Assessed value
$1,255,050

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 $2,384,000 $1,072,800 $240,686 12.439% $29,939 $29,939 +7.47%
2024/25 $2,291,000 $1,030,950 $222,867 12.5% $27,858 $27,858 +7.98%
2023/24 $2,220,000 $999,000 $206,366 12.502% $25,800 $25,800 +5.18%
2022/23 $1,850,000 $832,500 $199,965 12.267% $24,530 $24,530 +8.28%
2021/22 $2,042,000 $918,900 $185,156 12.235% $22,654 $22,654 -0.25%
2020/21 $1,983,000 $892,350 $185,143 12.267% $22,711 $22,711 +6.21%
2019/20 $1,652,400 $743,580 $171,436 12.473% $21,383 $21,383 +6.81%
2018/19 $1,377,000 $619,650 $158,743 12.612% $20,021 $20,021 +2.33%
2017/18 $1,185,000 $533,250 $153,819 12.719% $19,564 $19,564 +6.55%
2016/17 $1,079,000 $485,550 $142,428 12.892% $18,362 $18,362 +0.08%
Permits

Permit information for 830 Union Street, Brooklyn, NY

No recently recorded permits for this property.

More about New York City property records

Violations

HPD Violations

Violation ID Inspection date Class NOV issue date Status
11/09/2022 I
11/15/2016 I

*Most recent HPD violations on record 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

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

Property location map
FEMA flood zones
X

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
-

Subway & traffic

Closest station
Flatbush Ave & Plaza Street West at NW Corner
Station lines
2-3
Distance (miles)
0.204
View subway map

Access the detailed traffic volume map for 830 Union Street, Brooklyn, NY 11215 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity. View daily traffic map

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
P.S. 321 William Penn 9 Yes Public K-5 1,216 0.25
The Montessori School of New York - Brooklyn NR No Private PK, K-6 0 0.11
The Montessori School of New York - Brooklyn NR No Private PK, K-6 0 0.11
St Francis Xavier School NR No Private PK-8 175 0.12
St Francis Xavier School NR No Private PK-8 175 0.12
Berkeley Carroll School NR No Private PK-12 977 0.12
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.24
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.24
P.S. 77 NR No Public K-12 304 0.34
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
St Francis Xavier School NR No Private PK-8 175 0.12
Berkeley Carroll School NR No Private PK-12 977 0.12
Berkeley Carroll Elementary School NR No Private PK-12 940 0.16
Is 340 7 No Public 6-8 150 0.31
Poly Prep Lower School NR No Private 0 0.34
P.S. 77 NR No Public K-12 304 0.34
Ms 266 Park Place Community Middle School 4 No Public 6-8 69 0.34
Park Slope Collegiate 4 No Public 6-12 577 0.38
Luria Academy of Brooklyn NR No Private PK-8 244 0.45
Ms 51 William Alexander 7 No Public 6-8 1,026 0.53
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Berkeley Carroll School NR No Private PK-12 977 0.12
Berkeley Carroll Elementary School NR No Private PK-12 940 0.16
Poly Prep Lower School NR No Private 0 0.34
P.S. 77 NR No Public K-12 304 0.34
Park Slope Collegiate 4 No Public 6-12 577 0.38
Millennium Brooklyn High School 10 No Public 9-12 721 0.38
Cyberarts Studio Academy 2 No Public 9-12 298 0.38
John Jay School for Law 3 No Public 9-12 461 0.38
St Saviour High School NR No Private 9-12 400 0.50
P.S. 753 School For Career Development NR No Public 6-12 354 0.66

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

Neighbors for 830 Union Street, Brooklyn, NY

850 Union St, Brooklyn 816 Union St, Brooklyn 846 Union St, Brooklyn 848 Union St, Brooklyn 925 Union St, Brooklyn 836 Union St, Brooklyn 832 Union St, Brooklyn 838 Union St, Brooklyn 99 7th Ave, Brooklyn 834 Union St, Brooklyn 842 Union St, Brooklyn 844 Union St, Brooklyn 840 Union St, Brooklyn 828 Union St, Brooklyn 826 Union St, Brooklyn 824 Union St, Brooklyn 822 Union St, Brooklyn 820 Union St, Brooklyn 818 Union St, Brooklyn 814 Union St, Brooklyn

Nearby ZIP codes for 830 Union Street, 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 year built for 830 Union Street, Brooklyn, NY 11215?

The development at 830 Union Street, Brooklyn, NY 11215 was built in 1920.

What is the total square footage of 830 Union Street, Brooklyn, NY 11215?

830 Union Street, Brooklyn, NY 11215 has a total of 3,910 square feet.

What is the assessed value of 830 Union Street, Brooklyn, NY 11215?

830 Union Street, Brooklyn, NY 11215 is currently assessed at $1,255,050.

What are the property taxes for 830 Union Street, Brooklyn, NY 11215?

The property taxes for 830 Union Street, Brooklyn, NY 11215 total $29,941.

How many residential units does this building have?

This building has 4 residential unit(s).

Disclaimer

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