Permanent and immovable encroachments can include which items?

Permanent and immovable encroachments refer to structures or developments that intrude upon another property in a manner that is lasting and not easily removable. The items described in the correct choice encompass types of encroachments that are typically affixed to the land or property and would not be moved frequently or easily.

Corners of houses often extend slightly over property lines due to construction practices, and in-ground pools, once installed, are permanent fixtures that cannot be relocated without significant effort and expense. Both of these structures demonstrate characteristics of being fixed and substantial, which aligns with the definition of permanent and immovable encroachments.

In contrast, fences and driveways can sometimes be removed or repositioned more easily, and they could be viewed as less permanent in certain contexts. Concrete barriers, while they may appear permanent, often serve a specific purpose and may not necessarily be considered encroachments depending on their installation. Temporary structures, by definition, do not qualify as immovable and can be taken down or relocated, differentiating them from the permanent nature of the correct option.