This diploma thesis deals with and evaluates the condition of the building of the former orphanage in the city of Koprivnica, where moisture is the dominant cause of various damages in all floors of the building. The main subject and goal of the thesis was to perform the procedure of inspecting the building and recording the damage, and the proposal of the solution for the execution of the necessary remedition measures on the building was processed. In elaborating the topic, at the very beginning, the generally characteristic damages and causes in old buildings were dealt (the subject building is from the 1924). In the next section, the occurrence and types of moisture as the leading cause of damage to the subject building were discussed in detail. The next step in the elaboration was the reconnaissance of the building. After that, the reconnaissance of the building was started. After the reconnaissance, a technical description of the necessary remediation works was developed. In the next part of the present paper, the cost estimate of remediation works is proposed as one of the indicators of the value and severity of the proposed remediation measures. At the very end of the thesis, there are drawings of the building with details of the damage, which were made as a result of repeated field trips and a detailed snapshot of the existing condition of the building.