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Printed from StreetEasy.com at 09:22 AM, Jun 9 2026

Infinity Flats at 24 East 21st St. #2

Located at Infinity Flats 24 East 21st Street, #2, New York, NY Condo in Flatiron, All Downtown
Active listings: #2 Other units available in this building: 1 active sales listing
3 beds, 4.5 baths, 4,073 ft²

24 East 21st Street is a rare opportunity to own a full-floor residence in one of Flatiron’s most discreet boutique condominiums.

A private elevator opens directly into the grand living and dining room, an impressive 40 by 20 feet with soaring 11-foot beamed ceilings, stained wide-plank oak floors, and natural light from both north and south exposures.

24 East 21st Street is a rare opportunity to own a full-floor residence in one of Flatiron’s most discreet boutique condominiums.

A private elevator opens directly into the grand living and dining room, an impressive 40 by 20 feet with soaring 11-foot beamed ceilings, stained wide-plank oak floors, and natural light from both north and south exposures. A glass, brushed aluminum, and galvanized steel-enclosed gas fireplace anchors the space, while elegant glass doors open onto a private central outdoor atrium with a stunning pergola – a serene focal point at the heart of the home. Enormous picture windows frame the streetscape throughout.

The chef’s kitchen is appointed with a seamless Bianco Statuario marble island and breakfast bar, custom Italian white lacquer and aluminum cabinetry, a walk-in pantry, and a premium appliance suite including a 27-inch Sub-Zero refrigerator, 27-inch Sub-Zero freezer, 48-bottle wine cooler, six-burner Viking convection range with vented hood and built-in microwave, and Bosch dishwasher.

The primary suite is a true retreat, featuring an enormous walk-in closet complemented by an additional bank of in-room closets, blackout shades, and a spa-caliber en suite bathroom with a soaking tub, separate stall shower, and double vanity.

A dedicated media room with a 100-inch screen-easily convertible to an additional bedroom-a private home office with an en suite bath, and two additional well-proportioned bedrooms complete the layout with exceptional versatility. There are also 4.5 bathrooms throughout the home.

Additional features include two-zone central air conditioning, a commercial-grade washer and dryer, overhead lighting, a generous closet and storage space, and a Crestron smart home system.

Infinity Flats is a boutique condominium comprised of just eight full-floor residences, offering a full-time cyber doorman, exceptional privacy, and remarkably low carrying costs. With coveted north and south exposures, impressive scale, complete floor-through privacy, and undeniable downtown cachet, residences of this caliber are rarely available at this price per square foot.


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About the Building

Infinity Flats 24 East 21st Street  New York, NY 10010

Condo in Flatiron

  • 8 Units
  • 9 Stories
  • 1935 Built

Sales listings: 1 active and 26 previous
Rentals listings: 4 previous
Documents and Permits: 59 documents

Unit History

Nearby

Transportation

  • N R W at 23rd St

    under 500 feet

  • 6 at 23rd St

    under 500 feet

  • L N Q R 4 5 6 W at 14th St-Union Square

    0.21 miles

  • F M at 23rd St

    0.29 miles

  • PATH at 23rd Street Station

    0.31 miles

View subway lines on Google Maps

Schools

District 02 - Schools zoned for this address:
Sixth Avenue Elementary School

(PK,0K,01,02,03,04,05,SE)

Disclaimer: School attendance zone boundaries are not guaranteed to be accurate – they are provided by a third party and subject to change. Check with the applicable school district prior to making a decision based on these boundaries.