Welcome to the fourth volume of Sustainable Façades, a Special Issue of the Design Strategies Magazine published by the Institute for Design Strategies of TH OWL. Over the past two years, our Editorial Team has undergone slight changes that we believe have enhanced the quality of this magazine. From inviting contributors beyond our university to incorporating reviewers for quality checks, we aim to expand our reach, engage a broader audience, and spark curiosity across the wide spectrum of topics related to sustainable design and construction.

In this issue, we feature contributions with perspectives from about a dozen nationalities, developed within Germany (TH OWL, Schüco International KG, Werner Sobek AG, DOCOMOMO) and the Netherlands (TU Delft). We continue to extend an open invitation to other members of our academic and professional network for future editions. As always, we present a diverse range of articles exploring multiple aspects of the construction industry, with a particular focus on the building envelope and its performance in terms of building physics, carbon footprint, efficient assessment methods, and cultural implications. In addition, as technology continues to reshape the built environment, we acknowledge the increasing role of artificial intelligence and robotics alongside a growing awareness of the value of existing buildings, highlighting the need for holistic approaches that balances cuttingedge advancements with the preservation and adaptation of our built heritage and ancestral knowledge. We hope this issue inspires new perspectives on the intersections between research, policy, and practice, and how they shape the future of our cities to ensure environmental protection, economic growth, and social justice.