343 Sixth Avenue: Apartments for Sale & Rent

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New Development Opened in 2017

Last updated on Jan 17, 2026

343 Sixth Avenue

343 Sixth Avenue is a pre-war condo building in Brooklyn's Park Slope, built in 1920 and converted in 2016. The 4-story walk-up contains 8 units and offers amenities like central AC, roof deck, in-unit washer/dryer, and fireplaces. Currently, 1 apartment is for rent.

For Rent (1) $58 Avg. price/ft²
Recent Sales (1) $1,767 Avg. price/ft²
All Units in Building (8)

Apt. 3
Quick view: 11 photos

3 beds

2 baths

2,165 ft²

$58

$10,500

Jan 10, 2026

29 days

#3: $10,500 - 3 beds

Apt. 2

3 beds

3 baths

2,165 ft²

$3,825,000 -4%

$1,767

$3,985,000

Oct 4, 2024

View Full Sales History

Overview of 343 Sixth Avenue

343 Sixth Avenue is a pre-war condominium building in Brooklyn's Park Slope neighborhood finished in 1920 and converted in 2016. Situated at 343 Sixth Avenue, between Sixth Avenue and Seventh Avenue, the building contains 8 units and rises 4 stories. The walk-up building's amenities include: central ac, roof deck, in-unit washer/dryer and fireplaces.

Doorman

None

Type

Condo

Year Built

1920

Converted: 2016

Apartments

8 (view all units)

Floors

Neighborhood

Park Slope (Brooklyn)

Min Down

20%

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Amenities

Pre War
Walk Up
Central AC
Rooftop Terrace
In-Unit Washer/Dryer
Fireplaces

Area Map StreetView

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at 7th Ave and 9th 0.34 miles

at 4th Ave 0.38 miles

Sales History

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Editorial Coverage

Alternate Addresses

337 Avenue of the Americas
337 Sixth Avenue
339 Avenue of the Americas
339 Sixth Avenue
341 Avenue of the Americas
341 Sixth Avenue
385 4th Street
387 4th Street

Hendrix House

at the southwest corner of East 25th Street

Gramercy Park

Manhattan homes that work. Gracefully curved condo with gorgeous amenities + home offices in every unit | 2025 occupancy

1 beds starting at $1,648,000
2 beds starting at $1,610,000

Learn More

RLS IDX Data display by CityRealty.com, 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. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.

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An equal housing opportunity

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343 Sixth Avenue

Overview of 343 Sixth Avenue

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Sales History

Sales Summary

Pricing Comparison of Similar Buildings

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