This book gathers a selection of papers presented at the 5th International Scientific Conference "Environmental Challenges in Civil Engineering", ECCE 2022, held on September 26-28, 2022, in Opole, Poland. Written by an international group of experts, it reports on findings concerning structural material behavior, and new methods and technologies in constructions. A special emphasis is given to sustainable constructions practices, including material recycling and reuse, renovation and restoration of historical building and to those fostering sustainable development of cities and rural areas, and a better integration of buildings with the environment. Offering a good balance of theory and practice, and covering both technical and organizational aspects in civil engineering and architectural projects, this book offers extensive information on solutions and current challenges in construction projects and structural interventions in the context of environmental protection and earthquake prevention.