One Airport Square is a nine-storey building for offices, plus a ground floor designed for commercial activities. 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). 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). It consists of the latest technology in mechanical, electrical and plumbing (MEP) services executed and maintained by Lambert Electromec ltd.