This book represents an initiative to amalgamate research findings from a diverse array of international perspectives on building permits, addressing their innovation and digital evolution. With a comprehensive approach, the publication endeavours to encapsulate global scientific advancements, practices, and takeaways within the realm of digital building permit systems. Ranging through a diverse set of disciplines, related to the different systems and aspects of digital building permitting, it provides stakeholders and researchers with a comprehensive overview, which should be grasped as a whole to allow for real progress in digitalisation of building permit procedures. Central to the narrative of the book is the theme of the digital transformation reshaping building permit systems globally. By undertaking an in-depth exploration and examination of best practices, it seeks to furnish readers with a nuanced understanding of the opportunities and challenges inherent in this digital transformation. In consolidating a wealth of knowledge, including best practices and case studies from multiple countries, the book aims to demystify the complex domain of building permit systems. It serves as a comprehensive guide, starting from bothersome tasks, such as breaking down intricate regulations and technicalities into digestible information, thereby facilitating greater accessibility and understanding. This book significantly contributes to understanding digital building permits from a global perspective. Advancements, projects, and experiences are considered globally to provide the reader with an overview of opportunities and relevant methods to approach building permit digitalisation and innovation (regulations, process, organisational adjustments, legal aspects, 3D data, and software architectures, among others). The book is an essential reading for researchers and professionals with interests in different sectors encompassing the built environment.