What does the gross area measured by refer to?

The gross area measured refers to the total area under the roof of a building. This includes all usable spaces within the structure, as well as any non-livable areas like hallways, closets, and storage rooms, extending to the outermost edges of the walls. Understanding gross area is important for various real estate assessments, including property valuation, zoning considerations, and overall space usage in a building.

The other options focus on different aspects of measurement. Net living area typically refers to the space that is actually utilized for living, excluding non-livable areas. The footprint of the foundation measures only the base of the building's structure on the land, while the perimeter of the lot indicates the boundary around the property but does not provide insights into the internal space within the building.