CHICAGO — Interra Realty has brokered the $13.7 million sale of 3264-70 N. Clark St. in Chicago’s Lakeview neighborhood. The buyer, North Park Ventures, plans to convert the property’s 30 condominium units into apartments, as well as develop a new 22-unit apartment building on an adjacent surface lot. Located at the intersection of School and Clark streets near Wrigley Field, the existing building includes six ground-floor retail spaces comprising 7,600 square feet. The upper residential floors include a mix of one-, two- and three-bedroom units. Residents also have access to a shared dog run, courtyard, bike room and storage lockers. David Goss, Jon Morgan and Joe Smazal of Interra represented both parties in the sales transaction. The seller was not disclosed.