
The Royal Palace of Caserta is said to cover an area of 47,000 square meters and to be the largest in the world by volume. But how can it be the largest in the world if there are other royal palaces with a greater floor area? Let’s discover the truth. How big is the Royal Palace of Caserta really?
How is it possible that, for example, the Royal Palace of Madrid has a declared surface area of 135,000 m² (almost three times that of the Royal Palace of Caserta), when it has been shown to be one-quarter the size of the Royal Palace of Caserta?
A digital reconstruction of the Royal Palace of Caserta’s floor plan reveals that its footprint covers approximately 28,000 square meters. Taking into account the building’s vertical structure—comprising five main levels and two underground levels—the total actual floor area reaches a minimum of 140,000 square meters (excluding the two underground levels, four internal courtyards, and the two buildings on the square). Consequently, the actual dimensions of the Royal Palace of Caserta are as follows:
The figure of 47,000 square meters actually represents the ground area occupied by the building (excluding the two buildings on the square); indeed, simply multiplying the palace’s dimensions—247m x 190m= 46,930m² (so 47,000). However, the true floor area, as demonstrated above, is at least 140,000m² (excluding the two underground levels, four internal courtyards, and the two buildings on the square).
Computer simulation reveals that the Royal Palace has an area of 28,000 square meters per floor. Given that the Royal Palace has five floors plus two underground levels, its total surface area amounts to a minimum of 140,000 square meters (excluding the two underground levels, four internal courtyards, and the two buildings on the square).