434 Union Street: Apartments for Sale & Rent

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Last updated on May 9, 2025

434 Union Street

A turn-of-the-century brownstone at 434 Union Street has been transformed into a boutique condominium through expansion and gut renovation. The units feature high-end finishes, including wide plank white oak floors, high ceilings, large windows, and spacious walls suitable for artwork.

Recent Sales (1) $1,464 Avg. price/ft²
All Units in Building (3)

Apt. A

3 beds

2.5 baths

1,948 ft²

$2,851,100 -3.3%

$1,464

$2,895,000

May 18, 2022

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Overview of 434 Union Street

At 434 Union Street, a turn-of-the-century brownstone has been expanded and gut renovated into a boutique condominium with the finest finishes and materials. All units feature wide plank white oak floors, high ceilings, oversized windows, and expansive walls perfect for large-scale artwork.

Doorman

None

Type

Condo

Year Built

1899

Converted: 2020

Apartments

3 (view all units)

Floors

Neighborhood

Gowanus (Brooklyn)

Min Down

20%

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Amenities

Pre War
In-Unit Washer/Dryer

Area Map StreetView

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at Smith and President 0.25 miles

at 4th Ave 0.42 miles

Sales History

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Editorial Coverage

Brooklyn sales are up 161% in 2020; See beautiful homes in brownstone condos Thursday, September 3, 2020

ONE11 Residences

between Sixth Avenue & Seventh Avenue

Midtown West

Billionaires’ Row residences with park views and hotel services. Elevated one- to four- bed condos from $1.295M. Reduced pricing | Immediate occupancy

1 beds starting at $2,150,000
2 beds starting at $4,500,000

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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.

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434 Union Street

Overview of 434 Union Street

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