SUMMARY
Sustainable design… Green architecture… Sustainable constructions…Green Buildings these are all new ways and methods for designing and constructing. The environmental and economical challenges of this era are affecting many sectors. New buildings are being designed and executed and operated by modern technologies which reduces the environmental impact and at the same time leads to reduction in cost especially running costs and it participates in providing a safe and comfortable architectural environment so the need to develop the concept of sustainability in the architectural sector does not differ much from the needs that led to the development of sustainable development with its environmental, economic and social dimensions.As this term is one of the new concepts in the field of Iraqi architecture and engineering, so it necessitates the presence of researches concerning this idea from all its aspects in order to make use of the current international and so this research will define the concept of sustainability and green architecture and the important international standards and scales used in this field and highlighting it as a means to increase the efficiency and quality of Iraqi architectural projects. We have focused on international architectural examples as case studies and analyzed them architecturally and environmentally in order to understand the designing and engineering philosophy that the designer depended on.