SOLD FOR $2,560,000
· Closed December 29, 2016
$2,560,000
434 Union Street
MLS® #RLS10055044
Listing by The Corcoran Group
Studio
Bedroom
0
Bath
N/A
Sq. Ft.
1920
Year Built
Quick Summary
Property Highlights
- Style: Prewar architecture
- Character: Pre-war building (1920)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Mar 8, 2016 | $2,900,000 | - |
| Price Reduced | Jul 5, 2016 | $2,750,000 | -5.2% |
| Currently | May 5, 2026 | $2,560,000 | -6.9% |
Description
Classic brick three-unit townhouse in Carroll Gardens. Built in the 1920's, this Union Street townhouse retains much of it's original details such as 3 fireplaces with mantles, original moldings and hardwood floors. The current owner is a designer who thoughtfully designed the house with in-unit washer/dryers, Sub-Zero refrigerators and Jacuzzi tubs.Currently configured as a garden-level duplex with an open living/dining/kitchen and powder room on the parlor level, and 2 bedrooms, full bath and washer dryer on the lower level. The duplex opens out onto a private garden for relaxing and entertaining. The upper two units have an open living/dining/kitchen in front with a large master bedroom in the back. Either room could easily be divided to make room for a home office or second bedroom. A rear section of the garden was designed to be accessed by these two units if so desired to maximize the income potential. Units are separately metered, each having their own furnace and hot water heater.
Building Information
About Carroll Gardens
View All Carroll Gardens ListingsCarroll Gardens is defined by its deep front gardens and long-standing bakeries and restaurants along Court and Smith Streets. The real estate market features wide historic brownstones alongside new construction condominiums that maintain the low-rise building scale.
Carroll Gardens Live Market Data
View NeighborhoodActive Listings
34
Median Asking Price
$1.97M
Median $/Sqft
$1,382
Avg Days on Market
N/A
New This Week
3
Price Reduced
15%
Sold (30 Days)
9
Median Sale Price
$3.12M
Live data from RLS at REBNY • Updated 5/4/26, 10:08 PM EST
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Location
434 Union Street, Carroll Gardens, Kings County • Near Street
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)
Want help estimating ownership costs or understanding building compliance? Let's discuss
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
According to MLS records, the building was constructed in 1920, making it approximately 106 years old.
Pet policy requires confirmation with the listing broker.
To schedule a private showing, contact Milton Coste at (917) 416-7433 or mcoste@kwnyc.com. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.
Have a question not answered here?
(917) 416-7433Listing Courtesy of The Corcoran Group - Joan Dougherty
Listing Contact: (917) 971-6336
Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing 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. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.
Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.
Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.
RLS Data display by Keller Williams NYC. Data last updated on 5/5/2026 at 2:08 AM UTC