This book contains the materials of the Conference "Construction and Development: Life Cycle-2020" (CDLC-2020), held at Chuvash State University, Russia. The content of this volume is devoted to improving methods for calculating building structures, strengthening them and assessing their suitability for use, monitoring buildings, improving building technologies, geotechnics, energy efficiency of building envelopes and energy systems, introducing new structures and materials, and economic assessment of construction. It also consists of test data for load-bearing building structures. This volume will prove to be a valuable resource for those in academia and industry.