The buildings in the master plan for the International Investement Square in Beijing fall into two distinct categories, low rise buildings and towers. The urban organisation utilizes a consistent distribution of buildings in rings of various shapes and sizes, with each building encircling an internal courtyard. The building programme is distributed over three distinct yet interrelated neighbourhoods. Each of these is subdivided again in order to generate a new level of privacy and individuality. A third level is introduced by the semi-public courtyards at the core of the enclosed building blocks. The shapes of the roofs are articulated so as to achieve a harmonious and coherent master plan, as well as ensuring good sun orientation and excellent views for the apartments.