821A Union Street #4
MLS® #RLS10558789
Listing by Compass
3
Bedrooms
2
Baths
N/A
Sq. Ft.
1920
Year Built
Quick Summary
Property Highlights
- Style: Prewar architecture
- Character: Pre-war building (1920)
Property Details
Description
The true Belle of the Ball in prime Park Slope this exquisitely renovated, sunny, and spacious 3 bedroom 2 bath coop apartment comes with a gorgeous sunroom on the roof that opens onto two immaculately designed private outdoor spaces with a third roof deck above, each with breathtaking views of Manhattan. Making great use of being the penthouse apartment each bedroom and living space in this large home is windowed with sunshine flooding in throughout the day, and comes with easy access to the three private outdoor spaces above.
Enter into an amazingly bright 22? wide 14? high open living, dining, and home office space with four large brand new Marvin Wood Ultimate Double Hung windows that pour light in onto exposed bricks walls. Bay windows, a wood burning fireplace, and beautifully exposed wooden beams give the space great charm and a sense of coziness. This charm is complemented by a modern open kitchen that has been fully renovated. The heart of the home, the kitchen is a chef?s delight with an abundance of marble countertop space and storage, including with an island to gather around for meals. Enjoy top of the line appliances of a Blue Star gas range, Fisher & Paykel refrigerator, and Bosch dishwasher.
Continuing down the hall, we find the first of two bathrooms and a washer/dryer. The master bathroom is completely renovated with a gorgeous spacious stall shower. The first bedroom is extraordinarily large and unbelievably bright with an unobstructed window and skylight. The second bedroom is also an abundant size and has a large closet and exposed brick. The large master bedroom is a pure oasis with two large closets and big bright windows that allow light to stream in.
Now to the crown jewel of the apartment: the roof. Take stairs directly from the living room to a lovely sunroom encased in glass abutted by two large outdoor spaces on either side and a deck on top of the sunroom gives you all the outdoor space you could possibly dream of. From alfresco dining on one side to raised seating on the other - both sides come with breathtaking views of Manhattan and enough room for ample deck chairs, a hammock, and a Chiminea fireplace (which could be easily converted to a gas fireplace or a gas grill using the existing connection).
This home is steps from excellent restaurants, shopping, and community activities including the Park Slope Food Co-op right across the street, Park Slope Yoga a few doors down, the Grand Army Plaza Green Market, the Brooklyn Public Library, Brooklyn Museum, Brooklyn Botanic Gardens, and of course Prospect Park just a few blocks away. Only a short walk from the B/Q trains - this location is truly prime Park Slope. Pets are welcome!
Features & Amenities
Interior Features
Appliances
Building Information
Financial Details
About Park Slope
View All Park Slope ListingsPark 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 NeighborhoodActive Listings
86
Median Asking Price
$1.72M
Median $/Sqft
$1,439
Avg Days on Market
N/A
New This Week
4
Price Reduced
14%
Sold (30 Days)
22
Median Sale Price
$1.67M
Live data from RLS at REBNY • Updated 4/4/26, 4:57 PM EST
Similar Listings in Park Slope
View All910 UNION Street #4B
Condo • RLS #RLS20080555
445 5th Avenue #PH-E
Condo • RLS #RLS20042284
13 JACKSON Place
Single Family Residence • RLS #RLS20079160
591 10TH Street #PH
Rental • RLS #RLS20067730
445 5th Avenue #3-F
Condo • RLS #RLS20055937
300 5TH Street #3
Condo • RLS #RLS20079567
Location
821A Union Street #4, Park Slope, Kings County • Near 6th Avenue/7th Avenue
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
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.
Listing Courtesy of Compass - Danielle Lurie
Listing Contact: (310) 560-6539
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 4/4/2026 at 8:57 PM UTC