4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
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4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
4 W 21st Street 3-AD
For Sale

4 W 21st Street 3-AD

4 W 21st Street 3-AD, New York City, NY 10010

$3,350,000
Welcome to Residence 3AD at 4 West 21st Street. A rare, full-floor-scale Flatiron District home offering privacy, flexibility, and long-term versatility. Spanning approximately 3,000 square feet, this thoughtfully combined residence delivers the scale and comfort of a private home with the freedom of condop ownership. With 10-foot ceilings, two separate entryways, and a layout designed to evolve over time, Residence 3AD is equally well-suited for families, co-purchasers, or long-term investors seeking adaptability. A gracious foyer opens to expansive, north-facing living and dining spaces that anchor the home, ideal for daily living, entertaining, or shared use without compromise. The kitchen is connected via a passthrough, maintaining separation while allowing ease of flow, and is complemented by a dedicated dining room and breakfast nook that support everything from weekday mornings to formal gatherings. The south-facing bedroom wing offers four generously proportioned bedrooms, providing exceptional quiet and privacy rarely found in this part of Manhattan. The primary suite functions as a true retreat, complete with a walk-in closet, en-suite bath, and an adjacent office or library, perfect for work-from-home flexibility or future reconfiguration. Designed by acclaimed architect Hugh Hardy, 4 West 21st Street is a boutique, full-service condop that offers the advantages of condo ownership. The building allows pets, unlimited subletting, pied-a`-terres, co-purchasing, gifting, and parents buying for children, making it an ideal choice for multigenerational living, friends buying together through an LLC, or investors seeking maximum flexibility. Amenities include a 24-hour doorman, landscaped common terrace, fitness center, and on-site parking. Located just steps from Madison Square Park, and surrounded by the best of Flatiron, NoMad, and Union Square, residents enjoy immediate access to top dining, culture, and green space, including Eataly, ABC Kitchen, Trader Joe's and more! Private showings available by appointment with The 212Bravo Team at Nest Seekers.

2/20/2026 3:00PM - 4:30PM EST

2/21/2026 3:00PM - 5:00PM EST

2/22/2026 2:00PM - 3:30PM EST

4
beds

3
baths

3,000 Sq.Ft. LIVING AREA

Isabella Bravo

Isabella Bravo

Carolina Bravo

Carolina Bravo

Features & Amenities

Interior

  • total bedrooms4
  • Total bathrooms3
  • full bathrooms3
  • Laundry room Building Washer Dryer Install Allowed, Common Area
  • other interior Features Dining Area

Area & Lot

  • Status For Sale
  • OPEN HOUSE

    2/20/2026 3:00PM - 4:30PM EST

    2/21/2026 3:00PM - 5:00PM EST

    2/22/2026 2:00PM - 3:30PM EST

  • Living Area3,000 Sq.Ft.
  • MLS® IDRLS20070160
  • TypeCondo
  • YEAR BUILT2006
  • Architecture StylesLoft

Exterior

  • STORIES17
  • AIR CONDITIONINGCentral Air
  • other exterior FeaturesBuilding Storage, Building Courtyard, Building Roof Deck

Financial

  • Sales Price$3,350,000
  • Common Charges $11,545/mo

Work With Us

The 212Bravo Team has had a hand in more than $500M in sales throughout the city and specializes in luxury sales, investment properties, new developments, and foreign buyers. They create customized marketing campaigns for sellers, targeting specific demographic audiences and leveraging the power of social media, personal networking, and international connections. For their buyers and investors, they are highly attuned to specific tastes and styles and seek to find properties that satisfy emotional and financial goals. Their clients also benefit from a robust network of attorneys, mortgage brokers, accountants, and other real estate professionals.

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