The Royal United Services Institute (RUSI) is an independent security and defence think tank with headquarters at 61 Whitehall. Built in 1896, this Grade II* listed building needed modernisation. Renovations included installing a glass half-dome on the original roof terrace to create additional meeting space and offer sweeping views over Whitehall.

The half-dome is relatively flat, measuring 12.5 meters wide and 4 meters high, with a zinc-finished capstone. The stainless steel structure consists of 15 custom-made curved beams connected with horizontal transoms. It is topped with 70 double-glass panels that can be individually adjusted from completely transparent to almost opaque.

This was a very interesting commission for me, I supplied stills, video in landscape and portrait.