Prevu by reAlpha
BuySellBlogBrowse Listings

343 6th Avenue 4Brooklyn, NY 11215

For Sale

$5,250,000

Smart Buyer Rebate $65,625

Rarely does a home combine the scale, privacy, and outdoor living of a brownstone with the convenience of elevator condominium living. Occupying the entire top floor of a boutique condominium building, this elevator accessible three-bedroom-plus-den, three-bathroom penthouse spans 2,165 square feet, and is complemented by an extraordinary private roof terrace crafted for seamless indoor-outdoor living.

Wrapped in twenty oversized windows on four exposures, this residence is flooded with sunlight from sunrise to sunset, with sweeping sky views and exceptional privacy throughout.

A keyed elevator opens directly into the home, revealing the thoughtfully designed living space. White-oak herringbone floors, soaring ceilings, walnut millwork, and an open floor plan create an atmosphere that is elegant, comfortable, and welcoming.

The heart of the home is a dramatic 28 foot-wide great room where expansive living and dining areas are framed by treetop views and open sky. A gas fireplace, built-in shelving, and abundant natural light create a setting equally suited to everyday family life and large-scale entertaining. Throughout the seasons, the views transform from lush summer greenery to golden autumn leaves; to snow-covered branches in winter; and to flowering pear trees in spring.

French doors open to a den lined with walnut shelving and built-in storage. Currently configured as a home office, the space easily functions as a library, nursery, playroom or fourth bedroom.

The award-winning kitchen pairs beauty with functionality, featuring solid wood cabinetry by purekitchen-imperia, Carrara marble backsplash wall, a generous waterfall island, Wolf cooking appliances, Sub-Zero refrigeration, Miele dishwasher, and ample workspace for cooking, gathering, and entertaining.

Privately situated at the opposite end of the residence, the primary suite enjoys triple exposures, abundant closet space, and open views extending across neighboring brownstone gardens. The spa-inspired bath features radiant heated floors, a soaking tub, walk-in shower with teak flooring, detailed vanity cabinetry, and Waterworks fixtures. Two additional bedrooms offer excellent closet space and skyline views - including One World Trade Center - and are served by two beautifully appointed full bathrooms.

Additional features include a dedicated laundry room with ample storage, zoned central HVAC, integrated Sonos audio, on-demand hot water, and top-of-the-line double-paned windows providing maximum insulation and noise reduction.

The crown jewel of the residence is an approximately 800-square-foot private rooftop terrace and garden with sweeping views extending to the Manhattan skyline. The rooftop functions as an outdoor wing of the home. Accessible by both elevator and stairs, this remarkable space has been designed for living, dining, cooking, entertaining, and gardening.

A wisteria-covered pergola anchors the outdoor living area, while mature landscaping, flowering trees, roses, hydrangeas, and seasonal gardens create a level of tranquility rarely found in New York City. The fully equipped outdoor kitchen features ipe-clad cabinetry, a premium DCS grill with rotisserie, power side burner, refrigerator, freezer, hot/cold running water, Dekton countertops, and generous preparation space. Whether hosting sunset dinners against the Manhattan skyline, tending a morning garden, or enjoying a quiet evening beneath the stars, the rooftop serves as a seamless extension of the home below.

343 Sixth Avenue is a modern boutique elevator condominium built from the ground up by Ramon Maizlin and Sugar Hill Capital Partners, the team behind the acclaimed One Prospect Park West, distinguished by exceptionally low carrying costs and a valuable J-51 tax abatement. Located on one of Park Slope's quintessential tree-lined blocks and zoned for PS 321, the building is moments from Prospect Park, J.J. Byrne Playground, the Old Stone House, the Prospect Park YMCA, and the neighborhood's beloved cafés, restaurants, and shops.

Listed by Nathalie Roy

·

Corcoran Group

·

(718) 501-8763

Listed by Charles C Pigott

·

Corcoran Group

Last updated June 15, 2026

·

Source: REBNY #RLS20096977

RLS Data display by Prevu Real Estate LLC

Listing Facts

  • TypeSingle-family
  • NeighborhoodCentral Slope
  • Bedrooms3
  • Bathrooms3
  • Days on Prevu5
  • HOA/Maint. Fees$1,067/month
  • Size2,165 sqft
  • Price per sqft$2,425

Amenities

  • Dishwasher
  • Private Outdoor Space

Location

Mortgage Calculator

Listing History

06/10/2026
Listed by Corcoran Group
$5,250,000

Estimated Closing Costs

Total
$232,100
Attorney Fees
$4,000
NYC Mansion Tax
$118,125
Title Insurance
$23,625
Bank Attorney
$1,500
Mortgage Recording Tax
$80,850
Other Closing Costs
$4,000

Estimated closing costs are based on the list price of $5,250,000 and a 20% downpayment. These estimates are for indicative purposes only. Actual closing costs may vary for each transaction. See the Closing Costs Calculator for calculations specific to your situation.

Property Details for 343 6th Avenue 4

Association

Amenities

  • Pets Allowed: Building Yes, No

Fees

  • Association Fee: $1,067.00 Monthly

Exterior

Construction

  • Number Of Units Total: 5
  • Stories Total: 4
  • Entry Level: 4

Features

  • Building Features: Elevator(s)
  • View: City, Panoramic

Financial

Taxes

  • Parcel Number: 00983-1505

Interior

Features

  • Appliances: Dishwasher, Washer Dryer Allowed
  • Fireplace Features: Gas
  • Fireplace: Yes
  • Fireplaces Total: 1
  • Interior Features: High Ceilings, Walk-In Closet(s)

Measurements

  • Living Area: 2,165
  • Living Area Units: SquareFeet

Rooms

  • Bathrooms Full: 3
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 3
  • Rooms Total: 10

Other

Location

  • City Region: Brooklyn
  • Subdivision Name: Park Slope
  • Tax Block: 00983
  • Tax Lot: 0001

Utilities

Equipment

  • Laundry Features: Washer Hookup, In Unit

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 3 bedrooms and 3 bathrooms in this single-family home at 343 6th Avenue 4.

How does 343 6th Avenue 4 compare to other single-family homes in Central Slope?

This single-family home is listed 8% above the average price for single-family homes in Central Slope and has been on the market for 112 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 2,165 sqft.

343 6th Avenue 4 is a 3-bedroom, 3-bath single-family home for sale in Brooklyn NY 11215. Available on Prevu for 5 days at $5,250,000. This home features 2,165 square feet of living space, located in Central Slope. The median listing price for single-family homes in this area is $2,250,000. Additional amenities include private outdoor space and dishwasher. Explore more single-family home listings in Brooklyn.

RLS Data display by Prevu Real Estate LLC The Registrant acknowledges each other RLS Broker's ownership of, and the validity of their respective copyright in, the Exclusive Listings that are transmitted over the RLS. The information is being provided by RLS at REBNY Listing Service, Inc. Information deemed reliable but not guaranteed. Information is provided for consumers' personal, non-commercial use, and may not be used for any purpose other than the identification of potential properties for purchase. 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 RLS at REBNY Listing Service, Inc. All rights reserved. Based on information from the Real Estate Board of New York and/or other sources. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity. 2026 The Real Estate Board of New York, Inc., All rights reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.