.... eye catching spiral staircase. 

The structural design for the spiral staircase fell in the lap of ING Design. After toying with a couple of 3D computer models, a couple of head scratching sessions pondering the flexibility of curved steel plates, and a couple of pages of hand calculations, the final design was agreed on and fabrication commenced. 

Big shout to Ian Nutter at the Metal Craft Engineering for the faultless fabrication. 

Photo credits to Charlie Baker