Sung has over two decades of experience in architecture from concept design through the construction phase, in over 35 cities and 10 different countries. His projects are of various types and scales: from urban master-planning, campus planning, R&D facilities, healthcare facilities, educational facilities, residential complexes, high-rise offices and mixed-use developments. At present, his main focuses are large scale and complex projects that require more sophisticated design integration between strategic planning, architecture, interior and technology. He is also a qualified professional in sustainable design, a LEED AP since 2003. His KTPH Hospital project in Singapore was the first ‘Green Mark Platinum’ building in the country and has received several awards.