Working with highly acclaimed architects means to enter their world, their vision and their philosophy. At David Chipperfield Architects this means, among other things, developing every minute detail, every joint, and every interface, to bring it as close to perfection as possible. Hours and hours were spent at the drawing board together with the architect’s team to define every detail and negotiate every dimension. The final result are windows that perfectly integrate with the building in its proportions and in its character; immediately recognizable as the work of David Chipperfield. At the same time: total comfort, function, and performance was to be guaranteed for what would become one of London’s finest private residences. Though certified for excellent performance already, additional tests were carried out to ensure that the windows would conform to the strictest requirements with regard to noise reduction, safety, and insulation.