121-123 6th Avenue
MLS® #RLS10634207
Listing by Compass
7
Bedrooms
3
Baths
5,800
Sq. Ft.
1899
Year Built
Quick Summary
Property Highlights
- Style: Prewar architecture
- Character: Pre-war building (1899)
Property Details
Description
Developer's Delight In Prime Park Slope! 121-123 6th Avenue are two adjacent buildings that have been combined into one property. Both buildings have 4 floors (plus a cellar) and share occupancy on all floors except the cellar. Note the specs: Combined lot buildings: 40x100 Individual lot building: 20x100 Combined lot size: 3982 sf Individual lot size: 1991 sf Combined interior sf: 5800 Individual building sf: 2900 Building as currently used today: Garden Level and Parlor Floor - operate as a residence space Floor 2 Two-bedroom apartment Floor 3 Two-bedroom apartment The combined buildings are underutilized in terms of allowable occupancy and dwelling unit counts. There are multiple scenarios for occupancy and usage. SCENARIO ONE: Keeping the buildings combined for legal usage of five (5) apartments: One 2800 sf duplex garden level and parlor floor Two (2) 700 sf residential apartments on Floor 2 Two (2) 700 sf residential apartments on Floor 3 SCENARIO TWO: Keeping the buildings separate and for EACH building the following: One 1400 Sf duplex garden level and parlor floor One 725 sf residential apartment on Floor 2 One 725 sf residential apartment on Floor 3 Email for details, we can provide a full engineer's report upon request.
Building Information
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
94
Median Asking Price
$1.75M
Median $/Sqft
$1,458
Avg Days on Market
N/A
New This Week
13
Price Reduced
12%
Sold (30 Days)
23
Median Sale Price
$1.67M
Live data from RLS at REBNY • Updated 4/1/26, 5:48 PM EST
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Location
121-123 6th Avenue, Park Slope, Kings County • Near Park Place/Sterling Place
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
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Listing Courtesy of Compass - Christine Barranca
Listing Contact: (917) 848-0988
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RLS Data display by Keller Williams NYC. Data last updated on 4/1/2026 at 9:48 PM UTC