Look at this site:
Here is being build a complex of 3 combined towers:
Hotel Tower 4B+G+M+54
Residential Tower 4B+G+M+54
Office Tower 4B+G+M+50
but if you think that is great, see what was first planed to be build there, but changed becouse of the new Airport height restrictions applied in the aerea, restricting the maximum height in that plot to just 198 meters:
85F / 340m
75F / 300m
65F / 280m