An airspace parcel refers to a portion of the three-dimensional space above or below the surface of a property that can be separately owned, leased, or used. It is distinct from traditional land parcels, which are defined by boundaries on the ground. Airspace parcels are commonly associated with multi-level buildings, where different individuals or entities may own or occupy different floors or levels. They can also be relevant in the context of infrastructure development, such as transportation corridors or utility easements, where rights to the airspace may be allocated separately from surface rights.