What does an easement allow a third party to do?

An easement is a legal right that allows a third party to enter another person's property for a specified purpose, which matches the correct answer. This legal arrangement typically grants access for specific uses, such as for utility lines, pathways, or drainage, without transferring ownership of the land.

In contrast, the first option, which suggests that an easement allows for the construction of a building, misrepresents the nature of easements since they do not permit significant alterations like building structures. The third option implies ownership of a portion of someone else's land, which is not correct because easements do not convey ownership; they only grant permission for certain uses. Lastly, altering the landscape of another's property may be possible under certain conditions, but it falls outside the typical scope of what an easement entails. An easement is primarily about access and usage rather than imposing changes on the property itself. Thus, the essence of an easement is accurately captured in the understanding that it allows entry for a defined purpose, making the second choice the correct one.