Union BK, 305 Union Avenue

Doorman Condo in Williamsburg

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Union BK,
305 Union Avenue

Doorman Condo located in Williamsburg, between South 1st Street & South 2nd Street Map

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$1,472 Avg. price/ft² Apts. For Sale

$1,445 Avg. price/ft² Recent Sales
(past 12 months)

Apartments For Sale (2)
Recent Sales (3)
All Units in Building (19)

Include In-Contract Listings (1)

Apt. 4D5D
(14 Photos)

2 beds

1.5 baths

1,194 ft²

$1,465

$1,749,000

Mar 20, 2025

4 days

Apt. 5C
(22 Photos)

3 beds

2 baths

1,216 ft²

$1,468

$1,785,000

Mar 20, 2025

4 days

#4D5D: $1,749,000 - 2 beds

#5C: $1,785,000 - 3 beds

in contract

#3C: $1,825,000 - 3 beds

#4D5D: $1,749,000 - 2 beds

#5C: $1,785,000 - 3 beds

Apt. 4A

2 beds

2 baths

1,209 ft²

$1,700,000

$1,406

$1,700,000

Sep 3, 2024

Apt. 3A

2 beds

2 baths

1,189 ft²

$1,764,959

$1,484

$1,749,000

Jun 10, 2024

Apt. PHA

3 beds

2 baths

1,597 ft²

$2,050,000 -8%

$1,284

$2,250,000

Mar 22, 2023

View Full Sales History

Overview of Union BK at 305 Union Avenue

Union BK is a post-war condominium in Brooklyn's Williamsburg neighborhood finished in 2017. Situated at 305 Union Avenue, between South 1st Street and South 2nd Street, the building contains 19 units and rises 7 stories. The building has a 421a tax abatement, and residential amenities include virtual doorman with smartphone capabilities, lobby lounge, package room with cold storage, bike room, exercise room with Fitness on Demand, and on-site parking with electric car charging capabilites.

Year Built

2017

Apartments

Floors

Neighborhood

Williamsburg (Brooklyn)

Min Down

20%

Developer

Michael Schlegel

Architect

Garrison Architects

19Apartments

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Sales & Rentals
in Building

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What Time?

9am-noon

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3pm-6pm

Any time

You can also call us anytime at
☎️ (212) 755-5544

Amenities

Post War
Resident Storage
Rooftop Terrace
Elevator
Mail Room
Lounge
Fitness Center
On-Site Parking
Bike Room
Terraces / Balconies
Virtual Doorman

Shh... Many units sell without being publicly listed.

Interested in off-market listings at Union BK? Some previously listed residences might be available – contact us for insider details on potential opportunities!

Area Map StreetView

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Nearby Subways

at Union Ave and Metropolitan Ave 0.22 miles

at Hooper and Broadway 0.22 miles

at Havemeyer and Broadway 0.35 miles

Nearby Schools

PS 319 Williamsburg Early Childhood Center
Grades: PK,KG,1,UG
Brooklyn Arbor Elementary School
Grades: PK,KG,1,2,3,4,5
Ps 18 Edward Bush
Grades: PK,KG,1,2,3,4,5,UG
El Puente Academy For Peace And Justice
Grades: 9,10,11,12,UG
Ps 250 George H Lindsey
Grades: PK,KG,1,2,3,4,5

Data courtesy of GreatSchools.org

Bnos Chayil
Grades: PK,TK,KG,1,2,3,4,5,6,7,8,9,10,11,12
Talmud Torah Of Kasho
Grades: PK,TK,KG,1,2,3,4,5,6,7,8,9,10,11
Cong. Darkei Tshivo of Dinov
Grades: 9,10,11,12
Yeshiva Head Start-Keap
Grades: PK,KG
Bais Rochel School
Grades: 1,2,3,4,5,6,7

Data courtesy of GreatSchools.org

Union BK, 305 Union Avenue Floorplans

Currently for sale for $1,785,000

Apt 5C

3 beds, 2 baths, Approx. 1,216 ft²

Currently for sale for $1,749,000

Apt 4D5D

2 beds, 1.5 baths, Approx. 1,194 ft²

Currently in contract. Last listing price was $1,825,000

Apt 3C

3 beds, 2 baths, Approx. 1,230 ft²

Apt 4A

2 beds, 2 baths, Approx. 1,209 ft²

Last sold for $1,700,000

on Sep 3, 2024

View Unit History

Apt 3A

2 beds, 2 baths, Approx. 1,189 ft²

Last sold for $1,764,959

on Jun 10, 2024

View Unit History

Apt 4B

Studio, 1 bath, Approx. 506 ft²

Last listed for $749,000

Taken off market Feb 28, 2025

View Unit History

View All Floorplans

Sales History

View Full Closing History

Sales Summary

View Summary by Apartment Size

Year

Avg Price / Ft² (Est) Median Price / Ft² (Est) Avg. Actual Price Med. Actual Price

Transactions

2025

2024

$1,445

$1,732,480

$1,445

$1,732,480

2023

$1,284

$2,050,000

$1,284

$2,050,000

2022

2021

2020

$1,074

$1,573,278

$1,074

$1,573,278

2019

2018

2017

2016

2015

2014

Year

Avg Price / Ft² (Est) Median Price / Ft² (Est) Avg. Actual Price Med. Actual Price

Transactions

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

Sales History by Apartment Size

View Full Closing History

Show:

Pricing Comparison of Similar Buildings

View Detailed Comparison

Average Price per Sq. Ft.

$1,500

$1,350

$1,200

$1,050

$900

$750

$600

$450

$300

$150

Umbrella Factory

Union BK

Aria

|||

Editorial Coverage

Alternate Addresses

305 Union Avnue
307 Union Avenue
307-311 Union Avenue
311 Union Avenue
EcoRise Union Avenue

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One Wall Street

at the southeast corner of Broadway

Financial District

Modern living, classic elegance. A visionary transformation of a downtown art deco masterpiece. 100,000 SF of amenities | Buyer incentives | Move-in ready

Studios starting at $895,000
1 beds starting at $1,397,500
2 beds starting at $1,970,000
3 beds starting at $2,995,000

Learn More

RLS IDX Data display by CityRealty.com, LLC. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.

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An equal housing opportunity

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Union BK,305 Union Avenue

Doorman Condo located in Williamsburg, between South 1st Street & South 2nd Street Map

Overview of Union BK at 305 Union Avenue

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Shh... Many units sell without being publicly listed.

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Union BK, 305 Union Avenue Floorplans

Sales History

Sales Summary

Sales History by Apartment Size

Pricing Comparison of Similar Buildings

Editorial Coverage

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Union BK,
305 Union Avenue

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