Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $3,600,000

· Closed December 20, 2018

834 Union Street

$3,600,000

$900 per sq ft

834 Union Street

Park Slope, Brooklyn

MLS® #RLS10498982

RLS at REBNY

Listing by Compass

6

Bedrooms

4

Baths

4,000

Sq. Ft.

1920

Year Built

Quick Summary

Bedrooms 6
Bathrooms 4
Living Area 4,000 sq ft
Year Built 1920
Neighborhood Park Slope

Property Highlights

  • Style: Prewar architecture
  • Character: Pre-war building (1920)

Property Details

Type Single Family Residence
Total Rooms 18
Baths 3 Full
Pets Yes
Cross Street 7th Avenue/8th Avenue
Year Built 1920
Living Area 4,000 sq ft
Architectural Style Prewar
Parcel # 01065-0013
Block/Lot 1065/13

Description

This Stunning 4000+ square foot, Classic, 4 story brownstone is ready to move into and start generating income! Just strides from historic Grand Army Plaza and bucolic Prospect Park this home embodies the coveted combination of enchanting original detail with tasteful updates. Sitting on a sizable 20 x 90 foot lot and built 48 feet deep this three-unit home's unique layout offers a large family-sized duplex with two income producing units on the 3rd and 4th stories. On the Garden and Parlor level is the owners' duplex with soaring 11 foot ceilings, over-sized Mahogany doors, pier mirror, the breathtaking original moldings and stair, colorful original tile in the vestibule and foyer and the most delicate and whimsical plasterwork. The open plan of the Garden level combines a spacious living and dining room that flows into a huge eat-in-kitchen with a center island custom maple cabinetry, granite countertops and stainless steel appliances. Off of the kitchen is your full sized washer and dryer, a convenient half bath and a door to the lovely garden. The Parlor level has three light-filled bedrooms with oversized floor to ceiling windows and a full bath with a tub and glass enclosed shower. On the 3rd and 4th floors are two beautiful, bright, floor through 1+ bedroom, 1 bath apartments with renovated, eat-in-kitchens and baths that command excellent rents. Zoned for PS321 and in close proximity to the vibrant shopping and restaurants of 7th Avenue, 2,3,B,Q & R Trains to Manhattan, The Park Slope Food Coop, Saturday Farmers Market and Public Library, this property makes for a wonderful home and exceptional investment.

Building Information

Stories 3
Style Prewar

Park Slope is a well-known Brooklyn neighborhood, recognized for its tree-lined streets and preserved brownstones. Bordering the western edge of Prospect Park, the neighborhood offers convenient access to green space. The real estate market features a mix of historic townhouses, cooperatives, and modern condominiums, within walking distance of the park.

Park Slope Live Market Data

View Neighborhood

Active Listings

86

Median Asking Price

$1.72M

Median $/Sqft

$1,435

Avg Days on Market

N/A

New This Week

4

Price Reduced

14%

Sold (30 Days)

20

Median Sale Price

$1.67M

Live data from RLS at REBNY • Updated 4/5/26, 10:04 PM EST

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Location

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834 Union Street, Park Slope, Kings County • Near 7th Avenue/8th Avenue

MLS® ID: RLS10498982
First Listed: 10/1/2018
Closed: 12/20/2018
Contract Date: 7/18/2018

Listing Courtesy of Compass - Laura Rozos

Listing Contact: (917) 701-7340

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 at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 4/6/2026 at 2:04 AM UTC

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