Including improvements for Euro 2012, the stadium has undergone four renovations over the course of its history. The first of these took place in the mid-1960s, when the western section of the structure was renovated. The next, begun in 1970 and finished four years later, saw the addition of the north and south stands, raising capacity to 30,000. The architect for the project was Yu. Tabakova. Also added were the stadium's first roof and drainage system, as well as floodlighting, an information panel, and a hotel, located under the north stand and gymnasium.