Gross Internal Floor Area (GIFA) or gross internal area (GIA)

  • Created:
  • Reference: KBCN1062

In general terms, this is the total area enclosed by the external walls of a building, measured to the internal face of those walls and taking into account every floor in the building.

This is comprehensively defined in the Code of Measuring Practice, published by the Royal Institute of Chartered Surveyors:

03 Aug 2022 Link updated