Accessory structures are additional features that enhance the functionality or aesthetics of a primary building or site. Common examples include garages, sheds, and pergolas, which provide extra storage, workspace, or outdoor living areas. These structures are typically smaller than the main building and can be attached or detached. In landscaping, accessory structures may include items like fences, trellises, and garden benches. They serve various purposes, such as providing privacy, supporting climbing plants, or offering seating in outdoor spaces. Overall, accessory structures contribute to the overall design and usability of a property.