Which term refers to the right to use the airspace above a piece of land?

The term that refers to the right to use the airspace above a piece of land is "air rights." This concept is crucial in real estate because it allows property owners to control and utilize the space above their property, which can be vital for development, such as constructing buildings that extend into the airspace or installing aerial structures like signs or antennas.

Understanding air rights is essential for real estate transactions, particularly in urban areas where vertical space can be as valuable as the land itself. It can also involve legal considerations, such as zoning laws and regulations that govern how high a structure can be built and what can be done in the airspace above a property. This reflects the growing trend of maximizing land use, especially in densely populated regions.

Other terms such as "air space," "land rights," and "property rights" do not specifically convey the legal and commercial implications tied to the space above the land, making "air rights" the precise terminology that captures this concept within real estate.