The Carlton Centre has 50 floors and is 223m tall, about 40m short of featuring in the world's top 100 skyscrapers. The foundations of the two buildings in the complex are 3.5m in diameter and extend 20m down to the bedrock, 30m below street level. The building houses both offices and shops and has over 46 percent of the floor area below ground level.[1] A viewing deck on the 50th floor offers views of Johannesburg and Pretoria.