Steffian Bradley Architects London have designed and delivered Project Halo for HSL which was completed and handed over in December 2016 . The 12 000 M2 pathology laboratory on the Euston road in Central London provides the largest pathology laboratory in Europe and accommodates the London Headquarters for Sonic . The project includes a fully automated tracking system installed over four floors of the building . The GLP is a tracking system to move tissue samples between specialised analysers over a number of floors - The system is fully automated with GPS tracked sample cars .The automated GLP system will be the largest and most complex of its kind in the world when it becomes fully operational. The project also provides executive office space on the top floor with support offices over three floors of the building . The Halo café designed by SBA is due to open in April 2017 to support the building and its staff .