This book provides a holistic perspective on the sustainable conservation of heritage buildings through outlining the factors that influence the preservation, operational performance and maintainability of heritage buildings and the application of new methodologies and technologies. Using real cases from Egypt, a country which comprises a vast number of unique heritage structures, each of which is deteriorating at its own pace, this book presents a systematic, data-based approach to manage aging and deteriorating heritage assets in a cost-effective way. The authors initially provide an overview and history of conservation and maintenance work as well as the current codes and standards that regulate the preservation of these buildings. Further chapters then cover: The technology used to digitally document heritage buildings, including LIDAR, photogrammetry, Heritage Building Information Modelling (HBIM), and Virtual Reality (VR) technologies Introducing a Maintainability Index of Heritage Buildings (MIHB) to support the decision-making and prioritization process for the maintenance of heritage buildings The adaptive reuse of heritage buildings Modelling embodied and operational energy performance Using Chatbot and Blockchain technology to support the management and preservation of heritage buildings Ultimately, this book presents a useful tool for use in heritage management and highlights how the reusability of heritage buildings is critical to the creation and survival of sustainable communities. It will be useful reading for researchers, architects, engineers and especially those involved in the management of heritage buildings.