WICHITA, KS—Koch Industries Inc. has hired Hutton Construction and GE Johnson as construction managers for an expansion to its one-million-sq.-ft.-headquarters, work that will include a new office building, at 37th St. N. between Oliver and Hillside.

The project will include construction of a new 210,000-sq.-ft. office building on the northwest side of the campus. The new building will have three stories plus a lower level and the capacity to accommodate 745 employees. The new free-standing building, which will connect to other buildings on the campus via walkways and tunnels, is the first phase of a long-term master plan to handle potential future growth for Koch in Wichita. Construction of the new building will begin in the fall of this year with completion slated for mid-2015. In addition to office space, the new building will include a satellite Café Koch and training space.

Craig Highfill, vice president for facilities solutions for Koch Business Solutions LLP, said in a statement that the first phase construction signals the start of a multi-year project that will transform the 100-acre Koch campus into an eventual 180-acre complex.

“This is an exciting time for us and for Wichita as we add the office capacity and other infrastructure to accommodate the next phase of Koch Industries’ growth,” said Dave Robertson, president and COO of Koch, in the statement.

The project manager is Cassidy Turley; project architect is Wichita-based Howard + Helmer Architecture; and project engineer is Professional Engineering Consultants, also of Wichita.