910 UNION Street #4B
MLS® #RLS20080555
Listing by Corcoran Group
3
Bedrooms
2.5
Baths
1,535
Sq. Ft.
1914
Year Built
Quick Summary
Property Highlights
- Views: Park Greenbelt
- Exposure: East,North,South,West facing
- Outdoor Space: Deck, Terrace, Balcony
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Mar 31, 2026 | $2,600,000 | - |
| Currently | Jun 7, 2026 | $2,815,000 | +8.3% |
Description
ACCEPTED OFFER
910 Union Street, 4B
Residence 4B at 910 Union Street presents a thoughtful balance of prewar character and modern design within Park Union, a boutique condominium in the heart of Park Slope.
Entered through a private vestibule, this three bedroom, two and a half bath home opens into a well-proportioned living and dining area designed for both everyday living and entertaining. High ceilings with detailed moldings and wide plank Vermont oak flooring create a sense of quiet sophistication throughout.
The open kitchen is carefully composed with custom cabinetry, quartz countertops, and a suite of integrated appliances, complemented by a chef's pantry and additional storage. A discreet laundry closet adds convenience without compromising space or flow.
The layout offers excellent separation between the primary suite and secondary bedrooms. The primary bedroom is positioned for privacy and includes generous closet space and a refined en suite bath finished in marble with custom fixtures. Secondary bedrooms are well scaled and supported by equally considered baths.
Two private outdoor spaces extend the living experience, offering open views and a natural connection to the surrounding neighborhood.
Park Union is a full service, elevator condominium with a limited number of residences, originally a prewar structure and thoughtfully reimagined into a modern boutique building. Amenities include an attended lobby, fitness room, playroom, bike storage, and a landscaped roof terrace with expansive views.
Positioned just moments from Grand Army Plaza and Prospect Park, the location offers immediate access to green space, cultural institutions, and multiple transit lines, placing the best of Brooklyn and Manhattan within easy reach.
Features & Amenities
Interior Features
Exterior Features
Building Amenities
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
125
Median Asking Price
$1.82M
Median $/Sqft
$1,386
Avg Days on Market
N/A
New This Week
16
Price Reduced
18%
Sold (30 Days)
20
Median Sale Price
$2.28M
Live data from RLS at REBNY • Updated 6/7/26, 9:39 AM EST
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Location
910 UNION Street #4B, Park Slope, Kings County
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
The current listed common charges are $1,650 per month. Confirm the exact amount with the listing broker before making an offer.
This property has 3 bedrooms and 2 full bathrooms and 1 half bathroom.
The listed interior living area is 1,535 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1914, making it approximately 112 years old.
This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.
Pet policy requires confirmation with the listing broker.
At the current list price of $2,815,000 for 1,535 sq ft, the asking price per square foot is approximately $1,834. This figure is for reference only and may differ from appraised or assessed values.
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 Corcoran Group - Jessica L Buchman
Listing Contact: (917) 579-8641
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 6/7/2026 at 1:39 PM UTC