Manhattan’s office market recorded its strongest first half of leasing demand in more than two decades, according to the latest Colliers Q2 2026 Manhattan Office Market Report. Office leasing volume reached 11.02 million square feet in the second quarter, exceeding the five-year quarterly average by 29.4% and the ten-year average by 31.3%. Total leasing activity during the first half of 2026 reached 22.80 million square feet, representing a 10.5% increase from the same period