African Design Magazine Africa's Top 10 Projects of 2015 | Page 14

entrance to the offices and commercial area. A pair of escalators directly join the public space and the two floors of the underground car park. Even the underground floors are configured considering the typography to the site and present technical solutions for structural earthquake resistant. The building envelope is the key element that demonstrates the integration between form, structure and environmental strategies. The building, which is compact in form, contains within it a large hall the function of which is to provide lighting and to facilitate natural ventilation of the interiors. Variation of depth of the shafts determines the configuration of three office types: maxi, midi and mini. A defining element of the building is the movement generated by the projecting terraces, which gradually recede as they rise, floor by floor. These section variations enable increased flexibility in configuring the environments in accordance with the varying requirements of prospective tenants. A further defining element consists in the reinforced concrete structure, the inclined piers of which confer greater rigidity upon the building and the overhangs, while also featuring as a decorative motif for the front. One Airport Square is the first building in Ghana to have been awarded 4-Stars (Design Stage) by the Green Building Council of South Africa (GBCSA). The project was designed based on a detailed analysis of the site, the topographical and optimal orientation to become a point of reference and example for the new generation of office buildings in West Africa. At this latitude, the sun’s path makes it particularly exposed to solar radiation fronts east and west. This, combined with medium to high temperatures present during the entire course of the year, made it necessary to adopt strategies to reduce the need to cool the building. The plant is based on a principle of distribution of the fresh air conveyed in the floating floor which reaches in a uniform