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$1,150,000
MLS# RLS20112012 · Park Slope
Listed September 11, 2026 · 46 days on the market
1 Beds 2 Baths 1,200 Sq.Ft.
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 legal 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.
Owners make no representation as to the legal use of the various levels as bedrooms. The building's offering plan designates Unit 1A a triplex with 4.5 rooms and 1.5 baths. Please consult your architect and/or attorney for information regarding regulations on use.

Curtis Bain
Brown Harris Stevens
Services and facilities
Estimate
The rate is a placeholder, not a quote. Enter the one your lender gives you.
$7,453 / month
Co-op share loans aren't subject to mortgage recording tax. Not included: attorney, title insurance, lender and appraisal fees, board application and move-in fees, flip tax and prepaid items. Estimates only, based on the published New York State rates. Your attorney and lender will confirm the real figures.
Gallery
Listing Courtesy of Compass
This 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.
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920 Union Street 1A
Walking times are estimates. Schools shown are the nearest public and charter schools and are not zone assignments; a nearby school is not necessarily the one an address is zoned for. Confirm zoning with the NYC Department of Education. Sources: MTA, NYC Parks and NYC Department of City Planning open data.
The Neighborhood
Brooklyn's premier brownstone neighborhood offering architectural grandeur, top schools, and Prospect Park living.
Walkability
9/10
Public transit
8/10
Schools
10/10
Dining
9/10
Groceries & parks
10/10
Multiple acclaimed private and public schools combined with strong parent demand make this one of Brooklyn's top education neighborhoods. Nearby Brooklyn Heights adds access to Packer Collegiate and St. Ann's.
Private schools in the area include Berkeley Carroll School, Packer Collegiate Institute, St. Ann's School, Poly Prep Country Day School, Brooklyn Friends School, Saint Saviour Catholic Academy.
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