This book gathers the proceedings of the joint event of the 1st African Conference on Computing in Civil and Building Engineering (ACCCBE) and the 25th International Conference on Construction Applications of Virtual Reality (CONVR), held in Cape Town, South Africa, on October 22–22, 2025. It covers highly diverse topics such as computational modeling, simulation, data analytics, and digital transformation in construction practices, BIM, GIS, VR/AR, digital twin technology for sustainable design, circular economy in built environment, and digital innovations for achieving net zero. Written by leading researchers and engineers, and selected by means of a rigorous international peer-review process, the contributions highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaborations.