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$1,000,000
MLS# RLS20114254 · Park Slope
Listed September 10, 2026 · 49 days on the market
3 Beds 2 Baths 1,150 Sq.Ft.
This top floor, Park Slope duplex is an investment opportunity on arguably one of the best blocks in Brooklyn! Situated in center slope, between 5th and 6th Aves, in a charming Prewar limestone walkup are two combined units, 3R and 4R, that create a very spacious duplex. This quiet and bright Southern facing unit, features three bedrooms and two full baths. Renovate the duplex or remodel the two units to individually separate them and turn one over for a profit. This already generous home feels even bigger due to its open, loft-like layout and oversized windows with lovely, lush garden views. Upon entering, one appreciates many beautiful pre-war elements and architectural details that contribute to the beauty and potential of this special home: exposed brick, hardwood floors, high ceilings, a decorative fireplace and a windowed kitchen, to name a few.
This as-is unit also includes two storage units and a convenient laundry facility in the basement. 414 3rd Street is a pet friendly, pre-war walk-up cooperative with only seven units. It is situated just half a block above 5th avenue. Residents can appreciate living on historic 3rd Street, with its tree-lined, boulevard sidewalks directly across from the weekly farmer's market at JJ Byrne park. This boutique co-op is also minutes away from some of the best restaurants in Park Slope (among them the Stone Park Cafe and al di la) and has convenient access to the F, G, and R train lines. There is currently an assessment of $470/mo for various fees related to the sale of these two units.

Curtis Bain
Brown Harris Stevens
Estimate
The rate is a placeholder, not a quote. Enter the one your lender gives you.
$6,621 / 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.
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Listing Courtesy of Brown Harris Stevens Brooklyn LLC
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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414 3RD Street 3R/4R
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.