Appurtenant

Belonging to; accessory or incident to. A thing to be appurtenant to another must be of a different and congruous nature, such as an easement or servitude, or some collateral incident belonging to and for the benefit of the land A thing corporeal cannot be appurtenant to a thing incorporeal, nor conversely; nor, strictly speaking, can land be appurtenant to land, or land to a house, though it may pass as such where that appears to be the intention.