Taking the relationship with the surroundings as its principal theme, the office incorporates existing trees and traces with its roofline the gentle slope of the site. Clearings abound within the oblong volume to accommodate trees on site, and even the immense roof overhang has holes punched in it for that purpose. The two long sides are where the main corridors are. The offices, which look out onto the internal patios, are reached along short cross-passages. If the external facades boast large areas of glass and metal cladding, those facing onto the patios sport a miscellany of smaller fields of irregularly placed windows, brickwork and dabs of colour.