A subsidiary of Chicago-based LaSalle Investment Management has sold downtown Seattle’s Central Building for $34.5 million, 20 percent below what it paid in August 2007, records show.

KBS Strategic Opportunity REIT, a California-based real-estate investment trust, said Thursday that it had bought the 191,784 square-foot office building at 810 3rd Avenue.

Built in 1907 and renovated between 2002 and 2007, the Central Building is 82 percent leased, according to KBS.