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23 East 21st Street
Apartment #3
$3,950,000 Price
4 Bedrooms   - Baths
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Photo 1 of 23 East 21st Street 3, Flatiron, NYC, $3,950,000, Web #: 1118667139Previous PhotoNext Photo1 of 6

23 East 21st Street, Flatiron, NYC

Prime Flatiron Commercial Condo – 3,500 NET SF Full-Floor Loft One of the last Commercial condo buildings in Flatiron with the flexibility to convert to residential. Position your business in the heart of Manhattan’s Flatiron District with this exceptional 3,500 square foot full-floor commercial condo...

Prime Flatiron Commercial Condo – 3,500 NET SF Full-Floor Loft One of the last Commercial condo buildings in Flatiron with the flexibility to convert to residential. Position your business in the heart of Manhattan’s Flatiron District with this exceptional 3,500 square foot full-floor commercial condo loft. Designed for flexibility and impact, the space features soaring 12-foot ceilings, abundant natural light, and a wide-open layout ready to accommodate a variety of professional uses — from creative studios and boutique agencies to wellness or design firms. Fully equipped with central air conditioning, two half bathrooms, and direct elevator access, this unit offers both comfort and functionality. The column-free layout allows for easy customization, while oversized windows provide an inspiring backdrop for your team and clients alike. Located just steps from Madison Square Park and surrounded by top lunch, dining, fitness, and transit options, this is a rare opportunity to own and operate in one of Manhattan’s most sought-after commercial neighborhoods.

Courtesy of Compass

Floorplan for 23 East 21st Street, 3

Floorplan for 23 East 21st Street, 3

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* All information furnished regarding property for sale, rental, financing or estimated mortgage rates is from sources deemed reliable but no warranty or representation is made as to the accuracy thereof. For further financing information, please contact a Brown Harris Stevens agent.

Listing Details

New Listing
Flatiron, NYC
Type: Condominium
Price: $3,950,000
Maintenance/CC: $3,681
Monthly real estate tax: $34,548
Date Listed: 7/2/2025
Web ID: 1118667139

Info & Amenities

Type: Condominium
Rooms: 4.0
Bedrooms: 4
Built: 1904

Get to Know Flatiron

The Flatiron District is a vibrant and bustling neighborhood located in the heart of Manhattan, named after the iconic Flatiron Building, a triangular-shaped landmark that stands at the intersection of Fifth Avenue and Broadway. This neighborhood offers a mix of commercial and residential spaces, attracting both residents and visitors alike with its unique charm.

More About Flatiron

Neighborhood Guide to Flatiron

This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved.

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