Look at this (miniaturized) floor plan for the three bedroom penthouse apartments in this complex:
This shows a
large outdoor patio with a hot tub and room for patio furniture in each unit. If you look at the renderings of the building, this unit can only go on the 15th floor. There would appear to be four penthouse suites in each building, for a total of 12 units.
Previously the assumption was that the 15th floor would be mechanical, but this is obviously wrong. The 15th floor of all three of these buildings will be residential.
It's worthwhile to try and magnify this floor plan to have a closer look. I did this on my iPad. The master suite in this unit is massive, and one of the secondary bedrooms appears to be fitted out as a partial study. In addition to the large patio, there is a separate balcony off the living room.
I wonder how much these penthouse suites will go for???