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343 Sixth Avenue
343 Sixth Avenue
343 Sixth Avenue
343 Sixth Avenue
343 Sixth Avenue
343 Sixth Avenue
New Development Opened in 2017
Last updated on Aug 18, 2026

343 Sixth Avenue

Condo located in Park Slope, between Sixth Avenue & Seventh 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.

343 Sixth Avenue Location Map

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Overview of 343 Sixth Avenue

343 Sixth Avenue is a pre war condominium in Park Slope whose apartments include both shared and private rooftop outdoor space. The most distinctive layout is a top floor penthouse with a private roof terrace, while other residences occupy full floors and include duplex arrangements.

Built in 1920 and converted in 2016, the four story walk up contains eight units. Its amenities include central AC, in unit washer and dryers, fireplaces, and a shared roof deck. Apartments commonly have high ceilings, large windows, open kitchens, and three bedroom layouts with an office or den that can function as an additional bedroom.

The redevelopment is associated with Ramon Maizlin and Sugar Hill Capital Partners, the team behind One Prospect Park West. At 343 Sixth Avenue, their work combines the scale of full floor residences with contemporary systems and updated interiors, while retaining the building's pre war structure.

The building is on a tree lined stretch of Sixth Avenue in Park Slope, with restaurants, shops, and services along Fifth and Seventh avenues. Washington Park and the Old Stone House are one block west, while Prospect Park is three blocks east; the Brooklyn Museum, Brooklyn Botanic Garden, and Brooklyn Public Library are also close by.

Doorman
None
Type
Condo
Year Built
1920
Converted: 2016
Apartments
Floors
4
Neighborhood
Min Down
20%

Amenities

  • Pre War
  • Walk Up
  • Central AC
  • Rooftop Terrace
  • In-Unit Washer/Dryer
  • Fireplaces
343 Sixth Avenue building photo 1
343 Sixth Avenue building photo 2
343 Sixth Avenue building photo 3
343 Sixth Avenue building photo 4
343 Sixth Avenue building photo 1
343 Sixth Avenue building photo 2
343 Sixth Avenue building photo 3
343 Sixth Avenue building photo 4
343 Sixth Avenue building photo 5
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  1. F
at 7th Ave and 9th 0.34 miles
  1. R
  2. G
at 4th Ave 0.38 miles

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
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