New York City  »  11215  »  Union St  »  939 Union St

939 Union Street #4a, Brooklyn, NY 11215 - Property report

Also known as: 939 Union St #4a

Property image for 939 Union Street #4a, Brooklyn, NY 11215
static Mapbox map

Property type

Condo - Residential Unit in Elevator Building (R4)

Year built

2003

Lot sq. ft.

4,500

Sale price

$825,000

General information

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Address
Primary address
939 Union Street #4a
ZIP code
11215
Neighborhood
Park Slope
Borough
Brooklyn
Block & lot
01064-1005

Owner

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Building
Property type
Condo - Residential Unit in Elevator Building (R4)
Unit sq. ft.
1,222
Buildings on lot
1
Stories
16
Year built
2003
Basement
N
Sales
Sale date
03/07/2006
Sale price
$825,000
Tax
Tax year
2026-2027
Property tax
$14,502
Tax class
Floor area ratio (FAR)
Commercial FAR
Residential FAR
Buildable area
Zoning & Use
Zoning
Qualified opportunity zone
Residential units
22
Residential sq. ft.
Commercial units
0
Office sq. ft.
Retail sq. ft.
Lot
Distance to wide street
Lot sq. ft.
4,500

Area overview

Walk score
98 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
90 /100.  Biker's Paradise
School district
13
Community district
6
Closest police station
0.51 Miles
Closest fire station
0.25 Miles

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

Ownership

Ownership information for 939 Union Street #4a, Brooklyn, NY

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

Sales history for 939 Union Street #4a, Brooklyn, NY 11215

Sale date Sale price Buyer name Seller name
03/07/2006 $825,000 XXXXXX, XXXXX X XXX XXXXXX, XXXXXXX XXXXXX XXXXXX, XXX XXXXX XXX XXXXXX, XXXXXXXX XXXX
05/11/2004 $615,000 XXXXXX, XXX XXXXX XXX XXXXXX, XXXXXXXX XXXX XXXXX XXXXXXXXXXX XXXXX XXX

*Most recent sales on record for this property.

More about New York City property records.

Title documents

Date Type Amount Party 1 Party 2
09/17/2018 - R
08/30/2018 - D		 Amended Condo Declaration
(2018091101066001)		 XXX XXXXXXXXXX XXXXXXXXXXX
05/30/2006 - R
04/20/2006 - D		 Satisfaction of Mortgage
(2006050301557001)		 XXXXXX XXX XXXXX
09/29/2006 - R
03/24/2006 - D		 Satisfaction of Mortgage
(2006040100030001)		 XXXXXX XXX XXXXX XXXXXXXXXX XXXX XXXXXXX XXX
04/14/2006 - R
03/07/2006 - D		 Power of Attorney
(2006030901709003)		 XXXXXX XXXXX X XXX XXXXXXXXXX XXXXX XXXXXXXXXXX
04/14/2006 - R
03/07/2006 - D		 Mortgage
(2006030901709002)		 XXXXXX XXXXXX XXXXXXX XXXXXXXXXXXX XXX
04/14/2006 - R
03/07/2006 - D		 Deed
(2006030901709001)		 XXXXXX XXX XXXXX XXXXXX XXXXX X
07/02/2004 - R
05/11/2004 - D		 Power of Attorney
(2004051801054006)		 XXXXXX XXX XXXXX XXX XXXXXXXXXX XXXXXXXXXXX
07/02/2004 - R
05/11/2004 - D		 Mortgage
(2004051801054005)		 XXXXXX XXX XXXXX XXXX
07/02/2004 - R
05/11/2004 - D		 Mortgage
(2004051801054004)		 XXXXXX XXX XXXXX XXXX
07/02/2004 - R
05/11/2004 - D		 Deed
(2004051801054003)		 XXXXX XXXXXXXXXXX XXXXX XXX XXXXXX XXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 939 Union Street #4a, 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
$14,502
Municipal exemptions
Recent tax assessments
Market value
$301,313
Assessed value
$135,591

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 $290,340 $130,653 $101,454 12.439% $12,620 $12,620 +12.82%
2024/25 $255,839 $115,128 $89,489 12.5% $11,186 $11,186 +9.44%
2023/24 $263,747 $118,687 $81,759 12.502% $10,222 $10,222 +19.32%
2022/23 $211,716 $95,272 $69,834 12.267% $8,567 $8,567 +16.79%
2021/22 $133,225 $59,951 $59,952 12.235% $7,335 $7,335 -2.12%
2020/21 $157,411 $70,835 $61,087 12.267% $7,494 $7,494 +31.83%
2019/20 $142,352 $64,058 $45,573 12.473% $7,079 $5,684 +38.98%
2018/19 $131,247 $59,061 $32,429 12.612% $6,745 $4,090 +49.48%
2017/18 $128,644 $57,890 $21,512 12.719% $6,677 $2,736 +95.70%
2016/17 $119,121 $53,604 $10,845 12.892% $6,549 $1,398 +1169.31%
Permits

Permit information for 939 Union Street #4a, 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

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
-

Hurricane evacuation zones

Property location map
Hurricane evacuation zones
-

Subway & traffic

Closest station
Flatbush Ave & Plaza Street West at SW Corner
Station lines
2-3
Distance (miles)
0.121
View subway map

Access the detailed traffic volume map for 939 Union Street #4a, 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)
The Montessori School of New York - Brooklyn NR No Private PK, K-6 0 0.10
The Montessori School of New York - Brooklyn NR No Private PK, K-6 0 0.10
Berkeley Carroll School NR No Private PK-12 977 0.19
Berkeley Carroll School NR No Private PK-12 977 0.19
St Francis Xavier School NR No Private PK-8 175 0.27
P.S. 321 William Penn 9 No Public K-5 1,216 0.36
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.37
P.S. 282 Park Slope 5 No Public PK, K-5 496 0.37
Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Berkeley Carroll School NR No Private PK-12 977 0.19
Is 340 7 No Public 6-8 150 0.23
St Francis Xavier School NR No Private PK-8 175 0.27
Poly Prep Lower School NR No Private 0 0.29
Berkeley Carroll Elementary School NR No Private PK-12 940 0.31
Luria Academy of Brooklyn NR No Private PK-8 244 0.39
P.S. 77 NR No Public K-12 304 0.43
Ms 266 Park Place Community Middle School 4 No Public 6-8 69 0.43
Park Slope Collegiate 4 No Public 6-12 577 0.45
Elijah Stroud Middle School 5 No Public 6-8 121 0.55
Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance (miles)
Berkeley Carroll School NR No Private PK-12 977 0.19
Poly Prep Lower School NR No Private 0 0.29
Berkeley Carroll Elementary School NR No Private PK-12 940 0.31
P.S. 77 NR No Public K-12 304 0.43
John Jay School for Law 3 No Public 9-12 461 0.45
Park Slope Collegiate 4 No Public 6-12 577 0.45
Cyberarts Studio Academy 2 No Public 9-12 298 0.45
Millennium Brooklyn High School 10 No Public 9-12 721 0.45
St Saviour High School NR No Private 9-12 400 0.51
High School For Global Citizenship 4 No Public 9-12 221 0.60

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

Neighbors for 939 Union Street #4a, Brooklyn, NY

630 Crown St, Brooklyn 682 Myrtle Ave, Brooklyn 139 Flatbush Ave, Brooklyn 939 Union St, Brooklyn 446 Kent Ave, Brooklyn 286 A Dahlgren Pl, Brooklyn 6631 Duryea CT, Brooklyn 442 Kent Ave, Brooklyn 305 Warren St, Brooklyn 179 Pacific St, Brooklyn 6627 Duryea CT, Brooklyn 4521 1st Ave, Brooklyn 1239 49th St, Brooklyn 600 Crown St, Brooklyn 152 S 9th St, Brooklyn 2807 Cortelyou Rd, Brooklyn 2809 Cortelyou Rd, Brooklyn 561 5th St, Brooklyn 2811 Cortelyou Rd, Brooklyn 1240 Bedford Ave, Brooklyn

Nearby ZIP codes for 939 Union Street #4a, 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 939 Union Street #4a, Brooklyn, NY 11215?

The development at 939 Union Street #4a, Brooklyn, NY 11215 was built in 2003.

What is the total square footage of 939 Union Street #4a, Brooklyn, NY 11215?

939 Union Street #4a, Brooklyn, NY 11215 has a total of 1,222 square feet.

When was 939 Union Street #4a, Brooklyn, NY 11215 last sold and what was the sale price?

939 Union Street #4a, Brooklyn, NY 11215 was last sold on 03/07/2006 for $825,000.

What is the assessed value of 939 Union Street #4a, Brooklyn, NY 11215?

939 Union Street #4a, Brooklyn, NY 11215 is currently assessed at $135,591.

What are the property taxes for 939 Union Street #4a, Brooklyn, NY 11215?

The property taxes for 939 Union Street #4a, Brooklyn, NY 11215 total $14,501.

How many residential units does this building have?

This building has 1 residential unit(s).

Disclaimer

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Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.

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