Office

Positioned between Park Avenue South and Broadway, the property enjoys immediate access to the Flatiron Building, Union Square, and Madison Square Park, offering both prestige and convenience within a thriving commercial corridor.

Key Features

• Approx. 1,600 SF of full-floor space
• High ceilings with open, flexible floor plan
• Large windows providing exceptional natural light
• Prewar architecture with modern systems and finishes
• Ideal for creative offices, studios, or boutique showrooms
• 24/7 access and secure building entry
• Steps from Union Square, Flatiron Building, and Madison Square Park
• Excellent transit access: N, R, Q, W, 4, 5, 6, and L trains

Building & Area Information

• Property Type: Commercial (Office / Studio / Showroom)
• Building Class: Prewar Loft
• Neighborhood: Flatiron District / Union Square
• Zoning: C6-4A (Commercial / Mixed Use)
• Ceiling Height: Approx. 11–12 ft
• Utilities: Separately metered; tenant responsibility

Summary

A 1,600-square-foot full-floor loft offering light, character, and flexibility in the heart of the Flatiron District. Perfect for creative offices, production studios, or boutique showrooms, 42 East 21st Street delivers the quintessential downtown aesthetic with proximity to major transit, dining, and cultural destinations — ideal for businesses seeking both style and location.