Global building materials manufacturer Saint-Gobain signed a long-term lease on a 65-acre campus in Malvem, Pa., where it will build a new headquarters in preparation for expansion in North America. The new headquarters will serve both Saint-Gobain and its North American construction materials subsidiary, CertainTeed Corp.

According to the announcement, Saint-Gobain will be largely dependant on its own innovative technologies, including SageGlass, throughout the project. It adds that the relocation will bring approximately 120 additional employees to Chester County and raise the company’s total employee count at the new headquarters to more than 800.

“This headquarters marks a step change in Saint-Gobain and CertainTeed’s ability to serve our North American markets, and it will be a shining example of a 21st century manufacturing business,” says Saint-Gobain president John Crowe. “With the building industry continuing to rebound, we’ve seized the opportunity to create a focal point for innovative design and development on the Eastern Seaboard, a place where our businesses and employees can continue to grow in a fully integrated, modern space that promotes collaboration across our business units, while offering significant room for future expansion.”

The Chester County campus previously housed the headquarters for Aegon Group. Saint-Gobain is set to work with 320,000 square feet of space on the premises.

E. Kahn Development Corporation will lead the redesign of the campus, and construction is expected to begin this month and be completed by fall 2015. The exterior renovations and lobby of the new headquarters are being designed by Bernardon Haber Holloway with the interiors being designed by Jacobs.