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

939 Union Street #6a, Brooklyn, NY 11215 Property Information

939 Union Street #6a, Brooklyn, NY 11215 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

939 Union Street #6a, Brooklyn, NY 11215 1
static Mapbox map

Address

Primary address 939 Union Street #6a
Neighborhood Park Slope
Zip code 11215
Borough Brooklyn
Block & lot 01064-1009

Sales & Tax Overview for 939 Union Street #6a, Brooklyn

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Purchase date 07/07/2015
Purchase price $1,420,000
Tax class

Lot & Building Information for 939 Union Street #6a, Brooklyn

Lot sq. ft. 4,500
Property type Condo - Residential Unit in Elevator Building (R4)
Building sqft 1,222
Buildings on lot 1
Stories 16
Year built 2003
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning & Use for 939 Union Street #6a, Brooklyn

Residential units (DOF) 1

Area Overview

Walk Score
Transit Score
Bike Score


School district 13
Community district 6
Closest police station 0.51 Miles
Closest fire station 0.25 Miles

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

Unit Overview

Unit # 6A
Square feet 1,222
Condo complex 301114
Rooms 4
Bedrooms 2
Bathrooms 2

Other Property Data for 939 Union Street #6a, 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 939 Union Street #6a, 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 939 Union Street #6a, Brooklyn, NY 11215, including DOB violations, ECB violations, HPD violations and 311 complaints.

About 939 Union Street #6a, Brooklyn

What is the year built & the total sq. ft. for 939 Union Street #6a, Brooklyn, NY 11215?

939 Union Street #6a, Brooklyn, NY 11215 was built in 2003 and has a total of 1,222 square feet.

What is the assessed value of 939 Union Street #6a, Brooklyn, NY 11215 and the property tax paid?

Assessed at $136,656, the tax amount paid for 939 Union Street #6a, Brooklyn, NY 11215 is $14,615.

When was 939 Union Street #6a, Brooklyn, NY 11215 last sold and what was the last sale price?

939 Union Street #6a, Brooklyn, NY 11215 was last sold in 07/07/2015 for $1,420,000.

How many residential units does this building have?

This building has 1 residential unit(s).

Ownership Information for 939 Union Street #6a, Brooklyn

View property contacts like owners, building management, representatives from permits and tenants with a free account. For LLC-owned properties, access manually researched real owners and phone numbers.

Property owner name for 939 Union Street #6a, Brooklyn, NY 11215
Find out who owns 939 Union Street #6a, Brooklyn, NY 11215.
Sign Up
Building contacts for 939 Union Street #6a, Brooklyn, NY 11215
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.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 939 Union Street #6a, Brooklyn

Create a free account to view the complete sales history for 939 Union Street #6a, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

Sale date Sale price Buyer name Seller name
07/07/2015 $1,420,000
03/01/2004 $595,676
       
       
       
Unlock the complete sales history for 939 Union Street #6a, Brooklyn with a free account.
Sign up

Title Documents for 939 Union Street #6a, 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
09/17/2018 - R
08/30/2018 - D
Amended Condo Declaration
(2018091101066001)
08/07/2015 - R
07/28/2015 - D
Satisfaction of Mortgage
(2015073101075001)
07/31/2015 - R
07/07/2015 - D
Power of Attorney
(2015071100027003)
07/31/2015 - R
07/07/2015 - D
Mortgage
(2015071100027002)
07/31/2015 - R
07/07/2015 - D
Deed
(2015071100027001)
03/15/2012 - R
02/29/2012 - D
Agreement
(2012031100019002)
03/15/2012 - R
02/29/2012 - D
Mortgage
(2012031100019001)
04/14/2004 - R
03/01/2004 - D
Power of Attorney
(2004030800723003)
04/14/2004 - R
03/01/2004 - D
Mortgage
(2004030800723002)
04/14/2004 - R
03/01/2004 - D
Deed
(2004030800723001)
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 939 Union Street #6a, Brooklyn

Access detailed property tax data for 939 Union Street #6a, Brooklyn, NY 11215. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2026-2027
Property tax: $14,616
Tax assessor's market value: $303,681
Assessed value: $136,656

Assessment History for 939 Union Street #6a, Brooklyn

Here's the assessment & property tax history for 939 Union Street #6a, 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 $292,622 $131,680 $102,250 12.439% $12,719 $12,719 +12.81%
2024/25 $257,850 $116,032 $90,193 12.5% $11,274 $11,274 +9.44%
2023/24 $265,821 $119,619 $82,402 12.502% $10,302 $10,302 +19.32%
2022/23 $213,381 $96,021 $70,383 12.267% $8,634 $8,634 +16.78%
2021/22 $134,272 $60,422 $60,422 12.235% $7,393 $7,393 -2.11%

Permits for 939 Union Street #6a, Brooklyn

The complete history of permits filed for 939 Union Street #6a, 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.

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
$1,488,000
2.9% YoY
Median Price/Sqft
$1,318
-4% 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 Flatbush Ave & Plaza Street West at SW Corner
Station lines 2-3
Distance (miles) 0.121
View subway 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

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

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

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

Neighbors for 939 Union Street #6a, Brooklyn

Here are the neighbors for 939 Union Street #6a, Brooklyn, NY 11215.

Address Square feet Purchase date Purchase price
848 E 55th St, Brooklyn 1,564 06/17/2002
1266 Flatbush Ave, Brooklyn 6,840 06/18/2015 $998,000
210 Berkeley Pl, Brooklyn 5,000 05/25/1979
210 Clinton Ave, Brooklyn 128,583 04/25/1984
409 A Hart St, Brooklyn 2,160 06/07/2013 $382,500
840 A Lafayette Ave, Brooklyn 2,700 08/13/2010 $525,000
254 4th Ave, Brooklyn 4,160 12/30/2020 $1,680,000
1528 61st St, Brooklyn
617 Miller Ave, Brooklyn 2,920 09/25/2013
1996 E 9th St, Brooklyn 2,200 02/28/2019 $1,500,000
1155 Garage 66th St, Brooklyn 04/01/2003
186 Shepherd Ave, Brooklyn 2,000 09/23/1997
220 Ingraham St, Brooklyn 26,750 09/22/2000
946 40th St, Brooklyn 3,360 09/07/2023 $1,035,000
950 A Lafayette Ave, Brooklyn 2,001 03/02/2004 $217,500
25 Lacon CT, Brooklyn 998 03/16/2022 $1,800,000
233 Lynch St, Brooklyn 3,594 03/23/2021
4004 New Utrecht Ave, Brooklyn 4,815 09/07/2023 $462,188
270 Pacific St, Brooklyn 19,470 03/22/2002
280 3rd Ave, Brooklyn
Not sure if we cover all the data-points you need? View sample full report View sample full report