Urban Roof Gardens www.urbanroofgardens.com One of two terraces in this penthouse, this space provides a contemporary extension to the lower floor living areas. A glade of silver birch trees is contained behind a curving stone-clad wall. The stone flooring echoes the Fibonacci curve of the wall – each slab individually cut to create an extraordinarily dramatic result. At night, concealed lighting highlights the trees and subtly illuminates the floor without competing with the wonderful city views beyond.