NEW YORK CITY—GlobeSt.com has confirmed reports that media firm GroupM has inked an expansion lease at 3 World Trade Center. The agreement adds a sprawling 170,000 square feet to its large, 516,000-square-foot offices.

The addition is the largest new office commitment at any World Trade Center building since GroupM's original lease signing in 2013, notes the New York Post.

A spokesman for building owner Silverstein Properties declined to comment on the deal. According to the Post, Silverstein offered GroupM considerable future expansion options and was represented in-house by Jeremy Moss and a CBRE team including Stephen B. Siegel, Mary Ann Tighe and Adam Foster. The tenant was represented by a CBRE team including Tighe and Gregory Tosko. CBRE could not be reached at press time.

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Rayna Katz

Rayna Katz is a seasoned business journalist whose extensive experience includes coverage of the lodging sector, travel and the culinary space. She was most recently content director for a business-to-business publisher, overseeing four publications. While at Meeting News, a travel trade publication, she received a Best Reporting award for a story on meeting cancellations in New Orleans during Hurricane Katrina.