For Sale · Listing by Compass
920 Union Street #1A
Park Slope, Brooklyn
$1,150,000
920 Union Street #1A
MLS® #RLS20112012
Listing by Compass
- Studio
- 1.5
- Baths
- 1,200
- Sq. Ft.
- 1904
- Year Built
Quick Summary
Property Highlights
- Style: Loft architecture
- Climate Control: Wall Units
- Character: Pre-war building (1904)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Sep 11, 2026 | $1,150,000 | - |
| Currently | Sep 11, 2026 | $1,150,000 | - |
Description
Offering an exceptional blend of architectural scale, modern functionality, character, and space, this unique tri-level loft measures nearly 1,200 square feet and provides a versatile floor plan tailored to a variety of lifestyles. Architecturally designed as a large studio with 1.5 baths, the unit can function as a 2-bedroom or as a 1-bedroom plus an extra large 2-person home office. The split-level living area features soaring high ceilings, hardwood floors, and custom built-in bookshelves that anchor the expansive room. Overlooking the living space, the primary sleeping loft functions as a private suite equipped with zen Japanese Shoji screens, a walk-in closet, and a full en-suite bathroom. Down the stairs is an eat-in kitchen complete with generous counter space and stainless steel appliances, including a dishwasher and a vented range hood. A powder room is adjacent to the kitchen. Descending to the lower level of the triplex reveals a spacious, highly adaptable bonus room with potential for a home office or secondary sleeping area enclosed by sliding Japanese screens. Thoughtful storage solutions are integrated throughout the immense residence, including custom-built pull-out drawers beneath the staircase. Additional highlights include an in-unit washer and dryer, hardwood floors, and sound-proof double-paned windows with views of the Brooklyn Public Library across Grand Army Plaza. Situated within a well-maintained, dog and cat-friendly Art Nouveau building that was originally built at the turn-of-the-century as the headquarters for the Long Island Automobile Club for early motoring enthusiasts, the building blends rich Park Slope history with modern boutique co-op living. Dedicated storage and bike storage are available, with Prospect Park, major subway lines (2, 3, B, Q), and a Citi Bike station all within immediate reach. Residents enjoy unmatched neighborhood amenities, most notably the renowned Saturday Grand Army Plaza Greenmarket right outside your doorstep.
Features & Amenities
Interior 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
67
Median Asking Price
$1.80M
Median $/Sqft
$1,405
Avg Days on Market
N/A
New This Week
26
Price Reduced
15%
Sold (30 Days)
44
Median Sale Price
$1.70M
Live data from RLS at REBNY • Updated 9/11/26, 5:30 PM EST
Similar Listings in Park Slope
View All245 16TH Street #3
Condo • RLS #RLS20112493
1 Plaza Street W #14A
Co-op • RLS #RLS20114147
9 Prospect Park W #1-A
Co-op • RLS #RLS20076033
350 BUTLER Street #1D
Condo • RLS #RLS20097630
444-446 17th Street #3C
Condo • RLS #RLS20113244
1 PLAZA Street W #11B
Co-op • RLS #RLS20113981
Browse More NYC Properties
In This Neighborhood
By Property Type
By Borough
Location
920 Union Street #1A, 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 monthly maintenance are $1,638 per month. Confirm the exact amount with Milton Coste before making an offer.
The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.
This property has 0 bedrooms and 1 full bathroom and 1 half bathroom.
The listed interior living area is 1,200 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1904, making it approximately 122 years old.
This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.
Pets are permitted at this property. Contact Milton Coste for weight limits or breed restrictions.
At the current list price of $1,150,000 for 1,200 sq ft, the asking price per square foot is approximately $958. 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 milton@miltoncoste.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 Compass - Carol Kai-Ju Wang
Listing Contact: (347) 422-7652
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 9/11/2026 at 9:30 PM UTC
See it in person
Interested in this property?
Thank you!
Milton will contact you shortly.
Your info is secure and never shared.
New listings in this neighborhood
You're signed up!
You'll be notified when new listings appear in Park Slope.
Quick Facts
Monthly Costs Estimate
$230,000
Source: Freddie Mac PMMS
Est. Monthly Payment
$0
Estimates only. Consult a lender for exact figures.
Mansion tax applies at this price point
New York State charges the buyer a mansion tax on residential purchases at $1,000,000 or more. At this asking price the tier is $1M to $1,999,999 at 1.00%, applied to the whole purchase price. It is due in cash at closing and cannot be financed.
Estimated mansion tax at asking
$11,500
Estimate based on the asking price. Confirm your own obligation with your real estate attorney.
Back to Search
Find more properties