1. Common/Landlord Areas. Primarily of interest to a landlord, body corporate or administrator where there is a desire to have benchmarking reports which separate these areas from those deployed in the main usage/activity in the Facility. Might typically include foyers, lift lobbies (and shaft areas), stairwells, kitchens, and ablution/toilet areas.
2. Engineering Areas. Again primarily of interest to a landlord or administrator where there is a desire to have benchmarking reports which separate these areas from the above Class and from those deployed in the main usage/activity in the Facility. Might typically include vertical risers, Plant rooms and lift Plant.
3. Enclosed Car Park. An area enclosed within the building envelope used for car parking. Will generally be lit and ventilated but with no temperature regulation.
4. Temporarily Unutilised Space. The area would normally belong in the following Class but is currently vacant perhaps due to its being untenanted or refurbished.
5. Departmental/Tenanted Areas. This will be the Class most likely to be chosen for any Entity. While it can cover all areas not already included in the above four Classes its primary role is to include the areas where all of the main usages/activities actually take place in the Facility. It will quite often be the only Class chosen and if a Facility does have more than one such Entity with this Class it will probably be due to a need for covering different Purposes or recognising departmental space divisions.