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NEW YORK CITY — Cosentini Associates, a division of engineering and consulting firm Tetra Tech Inc., has signed a 60,000-square-foot office lease at 498 Seventh Avenue, a 25-story, 960,000-square-foot tower in Midtown Manhattan. Cosentini plans to relocate its headquarters from 2 Penn Plaza to the new space in the first quarter of 2020. Justin Aronson, Michael Liss, Christopher Mansfield and Adele Huang of CBRE represented the tenant in the lease negotiations. Andrew Conrad and Matt Coudert represented the landlord, George Comfort & Sons, on an internal basis.