This is a building not far from where I work. Those surely are bullet holes. These are now fairly hard to find, as most of the buildings have been refurbished, but damage from the war was still pretty common until recent years. This building is near a pretty major intersection and fighting there must have been furious. The Germans were defending one of their home cities, and not far from Berlin. There are few older buildings in this immediate area, with a modern shopping mall now on the opposite corner.