Classification of historical buildings façade’s details on the basis of order theory

On the basis of theoretical works devoted to the classical theory of architecture, classification of details of facades of historical buildings built on the basis of order theory is presented. The main classification features are the location of elements on the facade and the complexity of the form making. The proposed classification allows covering the variety of types of historical elements of facades in a short course, which is important in the training of architects-restorers, as well as architects using order details. The principles of the proposed classification can be used to study the details of buildings of any stylistic architectural period based on classical order architecture