Last updated on Apr 3, 2026

339 Union Street

Beautifully renovated 2,336 sq ft duplex condo in Carroll Gardens featuring an open floorplan, modern finishes, and generous backyard. Prime tree-lined location near F/G trains and Carroll Park with extremely low monthly costs and pet-friendly policy.

Recent Sales (1) $1,021 Avg. price/ft²
All Units in Building (4)

Apt. 1

2 beds

2.5 baths

2,326 ft²

$2,375,000 +1.1%

$1,021

$2,350,000

Dec 28, 2022

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Overview of 339 Union Street

339 Union Street is a beautifully renovated 2,336 square foot duplex condo located in the heart of Carroll Gardens, Brooklyn. This four-story, 25-foot-wide brick townhouse offers a spacious and light-filled living space, featuring an open floorplan with gleaming wood floors and modern finishes. The property boasts a generous backyard, ideal for outdoor gatherings, and extremely low monthly costs, making it an attractive option for potential buyers.

The first level of the apartment is designed for entertaining, with oversized windows that provide ample natural light. The kitchen is equipped with stainless steel appliances, a large center island, and plenty of storage. The layout includes two inviting bedrooms, with the primary suite offering a spa-like en-suite bath and direct access to the expansive backyard. The second bedroom can serve as a guest room or home office, catering to various lifestyle needs.

On the lower level, residents will find a versatile family room, perfect for relaxation or work, along with a convenient powder room and a massive walk-in closet. The building is pet-friendly, allowing dogs and cats upon approval, and is situated on a desirable tree-lined street just a block from the F/G trains and Carroll Park. Nearby amenities include shops, restaurants, and cafes, enhancing the appeal of this prime location.

Doorman

None

Type

Condo

Year Built

1920

Apartments

4 (view all units)

Floors

Neighborhood

Carroll Gardens (Brooklyn)

Min Down

20%

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Amenities

Pre War

Area Map StreetView

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at Smith and President 0.13 miles

Sales History

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Alternate Address

339 Union Street

200 East 75th Street

at the southeast corner of Third Avenue

Lenox Hill

A remarkable blend of classicism and contemporary sensibility. Spacious two- to six-bedroom homes on the Upper East Side. Delivery summer 2025

5 beds starting at $18,500,000

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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. ©2026 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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339 Union Street

Overview of 339 Union Street

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