Ensuring the engineering safety of buildings and structures is one of the most important conditions for the reliability, stability, and durability of construction facilities. During operation, structural elements are exposed to various external and internal factors, including permanent and temporary loads, temperature fluctuations, moisture, vibrations, and other influences. Such factors may lead to the occurrence of various defects and deformations in structures, as well as a reduction in their load-bearing capacity and operational reliability. Therefore, systematic inspection and monitoring of the technical condition of buildings and structures are among the key measures for ensuring their safe operation. This article examines the main problems arising in the monitoring of the technical condition of buildings and structures and presents a simplified method for calculating changes in the deflection of structural elements.