Car unexpectedly accelerated when turning into a parking space. Gradually braking going in to the space and then car suddenly accelerated across the curb and hit a building. Car can be available for inspection. No one was hurt but only because of being lucky that no one was on the sidewalk by the building. Emergency services were called and police made a report and all is reported to the insurance company. There has been no inspection yet by manufacturer. Called Subaru and they said to get the body work done first and then bring the car in for inspection. No warning sounds or lights noticed prior to the problem.