These are renderings of a model of the building produced using the Blender programme which shows a possible design for the extension based on the anodised pleated aluminium and glass. Please see below for analysis and explanation of the design proposal.
I may need to develop the angles of the twists a bit more which is currently set to a 10 degree offset at each twist. 10 degrees is the maximum offset that I would use on each twist. And the twists would only start at the second floor after a straight section that comes up through the basement and ground floor. This tower provides the lower floors with natural light that they would otherwise be lacking while not overheating the building. I would like the tower to go higher than the existing building to provide a viewing space, this would not be more than two additional floors – so Fourth and Fifth floor are a possibility. Each of the twisted floors is hopefully going to have two twist sections per floor. This will be refined through drawings and model making.