NEW YORK—Havas Worldwide Health has signed a long-term lease renewal and expansion at 200 Madison Avenue. The firm, a health and wellness communications agency, will occupy nearly 170,000 sq. ft. at the building.

Newmark Grubb Knight Frank’s (NGKF) David A. Falk, president of the New York tri-state region, and Jason T. Greenstein, a managing director with NGKF, represented Havas in its site search and lease negotiation. President and CEO Peter S. Duncan and Executive Vice President Matt Coudert of George Comfort & Sons Inc. acted in-house on behalf of ownership, George Comfort & Sons and Loeb Partners Realty.

Havas will bring another of its divisions to the Madison Avenue address with the larger space.

“With soaring ceilings and abundant natural light, 200 Madison Ave. has provided an excellent environment for the creative talents at Havas Worldwide Health over the past 15 years,” said Donna Murphy, CEO of Havas Health.

Under terms of the new deal, Havas will renovate the space with a series of upgrades over the next three years, which will include an outdoor deck above the ninth floor. The agency will ultimately occupy the entire sixth, seventh and ninth floors as well as a portion of the 20th floor.