KSLD designed the lighting for the Royal Bank of Scotland Headquarters restaurant sited at the east end of the Street. As this is predominantly a lunch venue the electric lighting provided balance with the daylight from south facing skylights and windows to the South courtyards. The control system plays an important role in providing flexibility for early morning use in winter and possible evening events.

Careful consideration has been given to selection of light source and colour temperature throughout the scheme. The client indicated a desire for a warm colour appearance throughout the building however this had to be balanced with the natural light and the colour imparted by the solar control glazing. After site trials all the fluorescent lamps were chosen to be 3,500°K to provide a degree of warmth and the cold cathode as 4000°K to provide a crispness to the edge detailing. All tungsten halogen lamps, including infrared coated lamps, are high efficiency types. All are operated between 80% and 95% to optimize lamp life and minimize maintenance. The scheme has been delivered to programme within a tight budget