The broker is Cushman & Wakefield of Massachusetts.
One Liberty Square is a 13-story with 157,563 square feet of space. The building is 89 percent leased, and tenants include Great Hill Partners, Berman DeValerio, and Boston Advisors.
Cushman & Wakefield said it exclusively represented the seller and procured the buyer.
“One Liberty Square is one of Boston’s top office addresses and will continue to be so for many years to come,” Edward Maher, vice chairman of Cushman & Wakefield, said in a statement.
Invesco Real Estate manages $53.2 billion of real estate investments.