How is Gross Living Area (GLA) best defined?

Gross Living Area (GLA) is best defined as fully finished space for year-round use. This measure specifically refers to the part of a building that is livable and heated, which includes areas like bedrooms, living rooms, and kitchens, as long as they are finished and designed for continuous occupancy throughout the year.

This definition encompasses the essential aspects of what constitutes usable living space, ensuring that the figure represents areas where people can live comfortably. By focusing on fully finished and heated areas, it excludes unfinished basements, attics, and other non-livable areas that may contribute to the total size of a property but do not provide functional living space.