Cuius est solum, ejus est usque ad caelum et usque ad inferos

The phrase “Cuius est solum, ejus est usque ad caelum et usque ad inferos” is a Latin legal maxim that means “Whose is the soil, his it is up to the sky and down to the depths.” It refers to the property owner having rights to the airspace above it and the ground below it within reasonable limits.

This maxim is often used in property law to describe the three-dimensional extent of property ownership, which includes the surface of the land, the airspace above it, and the ground beneath it. Thus, a property owner has complete control over their land from the depths of the earth to the sky above it.