What was the percentage of buildings damaged and destroyed in World War 2?

During World War II, it is estimated that around 30% of buildings in Europe were either damaged or destroyed. The level of destruction varied significantly by country and region, with some areas experiencing devastation up to 70% of structures. Major cities like Dresden, Warsaw, and Stalingrad faced particularly severe destruction due to extensive bombing and ground battles. Overall, the war had a profound impact on urban infrastructure across multiple continents.