Charles Hinds of Group Boston Real Estate brokered the sale of 390 Commonwealth Ave. #D2B1 for $1.35 million. The 2,960 s/f commercial condominium is located at Windsor Place Condominiums, a 106 unit mixed-use, full service building in the city's Back Bay neighborhood. The new owner/user will construct a new dental office in the raw space specializing in cosmetic and restorative dentistry. The building is home to several dental and medical practices including a Mass. General Hospital clinic. The sale included 5 deeded parking spaces in the attached Somerset Garage. Hinds represented the seller, Chesterton Properties. The property was purchases by Irays Santamaria, DMD, LLC.