Which of the following needs a building permit when introduced to a property?

Building permits are typically required for significant changes or additions to a property that could affect its structure, safety, or compliance with local zoning laws. The construction of an additional structure falls into this category because it alters the use and footprint of the land, may impact utility connections, and affects the overall land development regulations.

When a new structure is built, this can also involve a variety of considerations such as adherence to setback requirements, zoning approvals, and inspections during the construction process to ensure that it meets safety codes. Permits ensure that the work is properly reviewed and that it adheres to existing laws designed to protect public safety and welfare.

In contrast, minor landscaping, constructing a fence (depending on local regulations), and routine maintenance usually do not require building permits, as they tend not to involve the same level of impact on the property or safety concerns. However, it is essential to check local regulations, as requirements can vary based on jurisdiction.