Tech giant Apple this week bought the Boylston Street building that includes its three-story flagship Boston store for $88 million, according to a deed posted Wednesday. At about $3,500 per square foot, the deal is one of the most expensive of its kind statewide in recent years, Boston Business Journal reported.

Apple is making the switch from tenant to landlord of its flagship store in Back Bay, acquiring the glass box-style retail property for $88 million.