Why is sustainable design to be so significant for today's citiesè Why has it to be seen so significant for nowadays urban life styleè How are to be enhanced sustainable design from theoretical and practical point of viewè What are the key implications for society and authorities for the design processè What can we do to implement sustainability into the historic context and what can we learn from the past about design to be implemented in the contemporary cityè How should we understand the integration of urban and architectural design and what kind of urban form can be identified for sustainable designè What is the relation between sustainability and participative designè What is the role of landscape and energy form and in relation to technologyè Despite the extreme difficulty to set out perfect answers to all above questions, the choice to define out significant benefits and conflicts of sustainability in all its dimensions needs to be deeply analysed as much as possible. This book follows directly from ECOPOLIS: Sustainable Planning and Design Principles and is the second volume of the Cities, Design&Sustainability Series, which explores more deeply how high quality design is likely to have a positive impact and compatibility on the spatial, environmental, social and economic conditions of places and people. The book explores in detail sustainability issues that have taken on a greater importance. It examines the effect of conducting specific studies on revealing and enhancing sustainable design for the determination of urban areas of importance, offering advice to all those who are involved in designing cities. Hopefully, the impact of such studies should be significant on the methodological approach to design by characterizing the urban quality and by defining the constraints which should be implemented on urban development and regeneration. Moreover, it sets out the need on how sustainability can be successfully integrated with the design process attempting to evaluate its impact on the nowadays cities.