Complex sentence: The Vortex Tower was the working name of a huge and highly innovative project designed by Ken Shuttleworth's MAKE Architects, the building would have risen to a height of 984 feet (300 m) and 70 floors.
Split into simpler sentences: The Vortex Tower was the working name of a project designed by Ken Shuttleworth's MAKE Architects. The building would have risen to a height of 984 feet (300 m) and 70 floors.