Rendering of the Chicago facility, opening fall of 2019.

DEERFIELD, Ill. — Walgreens last month said it will open a new 200,000-square-foot corporate facility in the former Chicago Post Office building. The company expects 1,800 people will work in the new offices, with some 1,300 of the jobs being relocated from other offices.

The company’s headquarters, and about 3,200 jobs, will remain here.

Alex Gourlay, Walgreens’ president, noted that the new facility will improve the company’s access to young, tech-savvy workers. “Investing in our infrastructure and building our digital and technical capabilities are essential elements of our business transformation strategy,” Gourlay said. “The space in the iconic Old Post Office building allows us to attract and retain the best talent from all of ­Chicagoland.”

Many of the company’s digital and information technology personnel will work in the new offices, as will some global IT personnel. Walgreens last year expanded its Technology Center of Excellence in downtown Chicago. The digital, mobile, e-commerce and pharmacy technology teams now working there will move to the Old Post Office building when it opens in the fall of 2019.

The old Post Office, built in 1922, has been vacant since 1997, when the U.S. Postal Service moved out. New York-based real estate company 601W acquired the property in 2016 and is renovating the structure into office space. Plans call for a rooftop park, a food court and a riverwalk.