David, thanks for your reply.
The fact that Building Amenity Areas, unlike Building Service Areas, are still grossed up by the floor R/U was the missing 'something'. I should have reread the definitions of R/O & R/U ratio!
Not seeing that gross-up area in column N of the sample, led me to believe that the area was in limbo, when in actual fact the exclusion allows that column total to be used to calculate the R/O and the gross-up to still take place in the background.
Thanks again for the clarification.
I am currently completing an Area Survey on a new office building that has a fitness centre on the main floor, provided by the landlord for the use of all tenant employees.
Looking at Chart 3 (pg. 13), Building Amenity Areas (col. I) are totaled with the Occupant Areas (col. H) to yield the Usable Areas for a given a floor. This neither makes the area a Floor Service & Amenity Area or a Building Service Area & Amenity area. It only serves to reduce the R/U Ratio for that particular floor, thereby skewing the Rentable Areas for all tenants.
I have set up 3 different 'what-if' spreadsheets placing the fitness area as either floor amenity area (col. L), Building Service Area (col. K) or future Occupant Area (col. H). The result is that the tenant rentable areas in neither of the 'what-ifs' matches the Chart 3 formulas.
Am I missing something here?
Thanks in advance,