SOLD FOR $4,325,000
· Closed November 23, 2020
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
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | May 26, 2020 | $4,325,000 | - |
| Currently | Apr 26, 2026 | $4,325,000 | - |
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
110
Median Asking Price
$1.70M
Median $/Sqft
$1,376
Avg Days on Market
N/A
New This Week
15
Price Reduced
16%
Sold (30 Days)
20
Median Sale Price
$1.66M
Live data from RLS at REBNY • Updated 4/26/26, 5:14 AM 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
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
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Frequently Asked Questions
Common questions about this property
This property has 7 bedrooms and 3 full bathrooms.
The listed interior living area is 5,800 square feet. Verify dimensions independently during due diligence.
According to MLS records, the building was constructed in 1899, making it approximately 127 years old.
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
At the current list price of $4,325,000 for 5,800 sq ft, the asking price per square foot is approximately $746. 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 Compass - Christine Barranca
Listing Contact: (917) 848-0988
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 4/26/2026 at 9:14 AM UTC