Capital cost reporting and LCC measured area

When assessing the Capital cost reporting and the LCC credits, the area to be considered should be the Gross Internal Floor Area (GIFA), according to the below RICS definition:

Gross Internal Floor Area

Gross Internal Floor Area is the area of a building measured to the internal face of the perimeter walls at each floor level, which includes:

  • Areas occupied by internal walls and partitions
  • Columns, piers chimney breasts, stairwells, lift-wells, other internal projections, vertical ducts, and the like
  • Atria and entrance halls with clear height above, measured at base level only
  • Internal open sided balconies, walkways, and the like
  • Structural, raked or stepped floors are treated as a level floor measured horizontally
  • Horizontal floors with permanent access below structural, raked or stepped floors
  • Corridors of a permanent essential nature (e.g. fire corridors, smoke lobbies, etc.)
  • Areas in the roof space intended for use with permanent access (BCIS)
  • Mezzanine areas intended for use with permanent access
  • Lift rooms, plant rooms, fuel stores, tank rooms which are housed in a covered structure of a permanent nature, whether or not above main roof level
  • Service accommodation such as toilets, toilet lobbies, bathrooms, showers, changing rooms, cleaners’ rooms and the like
  • Projection rooms
  • Voids over stairwells and lift shafts on upper floors
  • Loading bays
  • Areas with a headroom of less than 1.5m
  • Pavement vaults
  • Garages
  • Conservatories (BCIS)

And excludes:

  • Perimeter wall thickness and external projections
  • External open-sided balconies, covered ways and fire escapes
  • Canopies
  • Voids over or under structural, raked or stepped floors
  • Greenhouses, garden stores, fuel stores and the like in residential property
  • Open ground floors and the like (BCIS)
14.02.18 - KBCN content amended to extend the applicability to LCC and to refer to GIFA rather than GEA, to reflect current industry practice.