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

939 Union Street #3a, Brooklyn, NY 11215 Property Information

939 Union Street #3a, 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 #3a, Brooklyn, NY 11215 1
static Mapbox map

Address

Primary address 939 Union Street #3a
Neighborhood Park Slope
Zip code 11215
Borough Brooklyn
Block & lot 01064-1003

Sales & Tax Overview for 939 Union Street #3a, Brooklyn

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

Purchase date 05/04/2006
Purchase price $881,000
Tax class
Estimated property tax $14,275

Lot & Building Information for 939 Union Street #3a, Brooklyn

Lot sqft 4,500
Building class Condo - Residential Unit in Elevator Building (R4) i
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 #3a, Brooklyn

Residential units (DOF) 1

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

Unit Overview

Unit # 3A
Square feet 1,222
Condo complex 301114

Other Property Data for 939 Union Street #3a, 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 #3a, 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 #3a, Brooklyn, NY 11215, including DOB violations, ECB violations, HPD violations and 311 complaints.

About 939 Union Street #3a, Brooklyn

What is the year built & the total sq. ft. for 939 Union Street #3a, Brooklyn, NY 11215?

939 Union Street #3a, 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 #3a, Brooklyn, NY 11215 and the property tax paid?

Assessed at $128,615, the tax amount paid for 939 Union Street #3a, Brooklyn, NY 11215 is $12,422. For the next year, the tax amount for 939 Union Street #3a, Brooklyn, NY 11215 is estimated at $14,275.

When was 939 Union Street #3a, Brooklyn, NY 11215 last sold and what was the last sale price?

939 Union Street #3a, Brooklyn, NY 11215 was last sold in 05/04/2006 for $881,000.

How many residential units does this building have?

This building has 1 residential unit(s).

Ownership Information for 939 Union Street #3a, 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 #3a, Brooklyn, NY 11215
Find out who owns 939 Union Street #3a, Brooklyn, NY 11215.
Sign Up
Building contacts for 939 Union Street #3a, Brooklyn, NY 11215
Building management:
Representatives (from permits):
Tenants:
Real Estate Reports:
$4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Cheaper in the City? Nearly 100 Communities in Suburban NYC Surpass $1M
Eliza Theiss, Mar 19, 2026 Cheaper in the City? Nearly 100 Communities in Suburban NYC Surpass $1M
New Yorkers planning a move to the suburbs increasingly find their options limited, after suburban home values shot up twice as fast as NYC medians over the last decade. While larger homes and better prices were long the norm outside the five boroughs, today, many NYC buyers find their option restricted to a handful of suburban markets.
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 #3a, Brooklyn

Create a free account to view the complete sales history for 939 Union Street #3a, Brooklyn, including title documents, transfer conditions, mortgages, liens, and pre-foreclosures.

Purchase date Purchase price Buyer name Seller name
05/04/2006 $881,000
03/12/2004 $590,585
       
       
       
Unlock the complete sales history for 939 Union Street #3a, Brooklyn with a free account.
Sign up

Title Documents for 939 Union Street #3a, 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
08/30/2018 - D
09/17/2018 - R		 Amended Condo Declaration
(2018091101066001)
01/21/2017 - D
02/08/2017 - R		 Agreement
(2017020701355001)
01/21/2017 - D
02/02/2017 - R		 Mortgage
(2017020201004002)
01/16/2017 - D
02/02/2017 - R		 Assignment, Mortgage
(2017020201004001)
09/04/2013 - D
10/31/2013 - R		 Satisfaction of Mortgage
(2013090401738001)
02/09/2010 - D
02/11/2010 - R		 Agreement
(2010020900490002)
12/15/2009 - D
02/11/2010 - R		 Agreement
(2010020900490003)
08/18/2009 - D
02/11/2010 - R		 Assignment, Mortgage
(2010020900490001)
05/10/2006 - D
08/18/2010 - R		 Satisfaction of Mortgage
(2006051102231001)
05/09/2006 - D
05/25/2006 - R		 Satisfaction of Mortgage
(2006051601577002)
Show More
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 939 Union Street #3a, Brooklyn

Access detailed property tax data for 939 Union Street #3a, Brooklyn, NY 11215. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax: $12,423
Estimated property tax: $14,275
Tax assessor's market value: $285,811
Assessed value: $128,615

More about New York City Property Taxes

Assessment History for 939 Union Street #3a, Brooklyn

Here's the assessment & property tax history for 939 Union Street #3a, 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 $285,811 $128,615 $99,871 12.439% $12,423 $12,423 +12.82%
2024/25 $251,849 $113,332 $88,094 12.5% $11,012 $11,012 +9.44%
2023/24 $259,634 $116,836 $80,484 12.502% $10,062 $10,062 +19.32%
2022/23 $208,414 $93,786 $68,746 12.267% $8,433 $8,433 +16.79%
2021/22 $131,147 $59,016 $59,017 12.235% $7,221 $7,221 -2.11%
Show More

Permits for 939 Union Street #3a, Brooklyn

The complete history of permits filed for 939 Union Street #3a, 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
$1,300,000
-8.8% YoY
Median Price/Sqft
$1,381
-0.4% YoY
Brooklyn Median Sale Price
$839,000
6.2% 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
Bus Routes
Name Grand Army Plz/Flatbush Av
Line B41
Distance (miles) 0.081

Schools

Nearest elementary schools

Name Rating Att. zoned Type Grade range No of students Distance to school (mi)
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
Show More

Nearest middle schools

Name Rating Att. zoned Type Grade range No of students Distance to school (mi)
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
Show More

Nearest high schools

Name Rating Att. zoned Type Grade range No of students Distance to school (mi)
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
Park Slope Collegiate 4 No Public 6-12 577 0.45
Show More

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

Neighbors for 939 Union Street #3a, Brooklyn

Here are the neighbors for 939 Union Street #3a, Brooklyn, NY 11215.

Address Square feet Purchase date Purchase price
728 Sackman St, Brooklyn 1,148 03/05/2017
60 Woodbine St, Brooklyn 3,963 06/22/2004 $445,000
881 58th St, Brooklyn 2,400
49 B Brighton 10 CT, Brooklyn 2,080 08/28/2020
34 Gunther Pl, Brooklyn 2,160 08/14/2025 $860,000
34 E 99th St, Brooklyn 912 11/24/1993
1050 A President St, Brooklyn 1,904 01/06/2006 $505,000
239 Hart St, Brooklyn 1,530 12/21/2001
225 Marion St, Brooklyn 2,000 04/24/2003 $235,267
2709 W 36th St, Brooklyn 1,280
463 A 18th St, Brooklyn 1,876 06/28/1989
169 N 7th St, Brooklyn 4,125 05/22/2015 $3,400,000
94 Macdougal St, Brooklyn 1,980 07/23/2001
790 E 94th St, Brooklyn 3,475 10/14/1994
472 Willoughby Ave, Brooklyn 3,600 10/05/2016 $1,725,000
281 A 19th St, Brooklyn 1,292 12/01/2013
78 Ebony CT, Brooklyn 10/31/2022 $208,000
681 Broadway, Brooklyn 8,130 04/01/2009
866 Hancock St, Brooklyn 2,880 05/18/2017 $973,000
Show More
Not sure if we cover all the data-points you need? View sample full report View sample full report