CHICAGO — IDEO, a global innovation and design firm, has signed a lease for 20,442 square feet within an eight-story redeveloped office building located at 626 W. Jackson Blvd. in Chicago’s West Loop. Chicago-based Sterling Bay Cos., in partnership with The Deitcher Group, owns the 107,977-square-foot building. IDEO is the first tenant signed at the building since it underwent major capital improvements that encompassed common areas and building systems. Palo Alto, Calif.-based IDEO will take occupancy on floors seven and eight of the building in the third quarter. Lisa Konieczka of CB Richard Ellis represented IDEO in lease negotiations. Terms of the lease were not disclosed.