“Voids over stairwells and lift shafts on upper floors”
“Voids – attention is drawn to the exclusion of voids over atria at upper levels … and the inclusion of voids over stairs etc…Where an atrium-like space is formed to create an entrance feature and this also accommodates a staircase, this does not become a stairwell but remains an atrium measureable at base level only.”
“GIA can be used for marketing some forms of property, for example industrial. Those using GIA for marketing purposes are advised to take particular care. The Code identifies some of the dangers (for example, GIA 2.12) that could mislead a consumer of space marketed on a GIA basis, should these not be clearly stated.”