We are the ideal partner to improve the quality of buildings in terms of sustainability and low energy. The interest in environmentalism and low energy buildings began at the end of 2006, aided by the response to global warming with the United Nations as a promoter of environmentally conscience building, as green growth policy and focus on environmental sustainability of the current national government continues to become more prominent in the construction sector. GASD has always been and will continue to be on the cutting edge of changes in the political world of sustainability and energy consumption. As we offer our advice in the field of green building and low energy consumption with the knowledge and experience of the highest quality experts in the field obtaining certificates earned, we have and will continue to strive to give our customers better queries. We will be with you in greening the built environment through more realistic and practical advice. We have analyzed in detail national regulations of ecological building and low energy as sustainable buildings labelling system of Housing Performance Ratings , Clean and Healthy Homes ,Energy-efficiency building ratings construction and efficiency criteria of ecological housing , Barrier free, Crime prevention trough environmental design, Intelligent Building systems, etc. And together with simulations and data from various national and international documentation .We will help you to build buildings with lower cost and greater efficiency. We, at GASD are grateful to our customers for their support in growing as leader in green building in the 21st century. Lee Young-Soo,, CEO GASD Ltd.