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World’s Largest Flex Office Space Coming to Midtown’s Tower 49

Kato International LLC has launched a comprehensive owner-led redevelopment initiative at Tower 49, introducing two new amenity floors and a building-wide tenant experience program managed by Industrious, which is also creating what is reportedly the world’s largest single flex office footprint. The 18-floor flex office space at 12 E. 49th St. will span 291,600 square feet.

“This next phase at Tower 49 reflects our long-term commitment to the building and all of our tenants,” said Hisamitsu Hara, SVP & general manager of Kato International LLC, which has owned the 600,000-square-foot Tower 49 since 1986. “By deliberately reinvesting in the building and assembling a best-in-class team of partners, we are creating one of the most exceptional workplace experiences in the world.”

Along with Industrious, the redevelopment team includes Bonetti Kozerski Architecture, MdeAS Architects, branding firm Mucca, and hospitality advisory firm Friend of Chef. The Tower 49 redevelopment is expected to be completed by the fourth quarter of 2026

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About Paul Bubny

Paul Bubny serves as Senior Content Director for Connect Commercial Real Estate, a role to which he brings 16-plus years’ experience covering the commercial real estate industry and 30-plus years in business-to-business journalism. In this capacity, he oversees daily operations while also reporting on both local/regional markets and national trends, covering individual transactions across all property types, as well as delving into broader subject matter. He produces 7-10 daily news stories per day and works with the Connect team and clients to develop longer-form content, ranging from Q&As to thought-leadership pieces. Prior to joining Connect, Paul was Managing Editor for both Real Estate Forum and GlobeSt.com at American Lawyer Media, where he oversaw operations at both publications while also producing daily news and feature-length articles. His tenure in B2B publishing stretches back into the print era, and he has served as Editor in Chief on four national trade publications. Since 1999, Paul has volunteered as the newsletter editor of passenger rail advocacy groups (one national, one local).

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