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347 Sixth Avenue
New Development Now on the market
Last updated on Feb 25, 2026

347 Sixth Avenue

Full-floor Park Slope penthouse near Prospect Park with dual exposures and premium finishes. Features an expansive 1,172 sq ft private rooftop terrace with Brooklyn and Manhattan skyline views. Currently, 1 apartment is for sale.

347 Sixth Avenue Location Map
Unit #
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Baths
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Price / Ft2
Price
Listed on
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Overview of 347 Sixth Avenue

347 Sixth Avenue is a boutique building in Park Slope, located three blocks from P.S. 321 and Prospect Park. The building features newly constructed residences with meticulous attention to detail and modern systems throughout. Its location provides easy access to the neighborhood's cafés, boutiques, and restaurants along 7th and 5th Avenues.

The penthouse is a full floor, two bedroom, two bathroom residence distinguished by an expansive private rooftop terrace of approximately 1,172 square feet offering views of both Brooklyn and Manhattan skylines. The unit benefits from dual east and west exposures through oversized Pella windows, and a private interior staircase connects the main living space to the roof terrace. White oak floors and Baldwin hardware are used throughout.

The kitchen features Calacatta Altissimo Italian marble countertops and backsplash paired with premium appliances from Wolf, Sub-Zero, and Bosch. The primary suite includes a walk through closet and an en suite bathroom finished in Italian marble with Kohler fixtures and polished chrome hardware. Modern building systems include Mitsubishi HVAC, ERV units for fresh air exchange, and soundproofing by Rockwool and QuietRock. Additional features include GE Profile washer/dryer, LED lighting with dimmers, video intercom, and interior and exterior security cameras. The building offers low carrying costs and high ceilings.

Doorman
None
Type
Condo
Year Built
1920
Converted: 2025
Apartments
Floors
4
Neighborhood
Min Down
20%

Amenities

  • Pre War
  • Central AC
  • Rooftop Terrace
  • Video Intercom
  • In-Unit Washer/Dryer
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  1. F
at 7th Ave and 9th 0.32 miles
  1. R
  2. G
at 4th Ave 0.37 miles

Pros & Cons

  • Private rooftop terrace with Brooklyn and Manhattan skyline views
  • Premium Wolf, Sub-Zero, and Bosch appliances
  • Calacatta Altissimo Italian marble countertops and backsplash
  • In-unit washer/dryer
  • High ceilings
  • Low carrying costs
  • 3 blocks from Prospect Park and P.S. 321
  • Dual east and west exposures
  • Mitsubishi HVAC system with ERV units
  • Video intercom system
  • White oak floors throughout
  • Rockwool and QuietRock soundproofing
  • LED lighting with dimmers
  • Interior and exterior security cameras
  • Baldwin hardware throughout
  • Walk through closet in primary suite
  • Italian marble bathrooms with Kohler fixtures
  • Oversized Pella windows
  • Private interior staircase to roof terrace
  • Newly constructed building
  • Boutique building with limited units

Pricing Comparison of Similar Buildings

View Detailed Comparison
Radiant
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