Gross Floor Area

**Gross Floor Area**

Gross Floor Area (GFA) refers to the total floor space within the perimeter of a building, including all floors and levels, measured from the exterior walls. It encompasses all usable and non-usable areas such as hallways, lobbies, stairwells, and service spaces but typically excludes open terraces and balconies. GFA is an important metric in real estate, architecture, and urban planning, as it helps determine building size, density, and compliance with zoning regulations. Understanding GFA is essential for developers, architects, and property managers when planning construction, calculating floor space ratios, or evaluating property value.