The Sixth, Seventh, and E Piano Sonatas of Prokofiev illustrate the composer's more mature style. In these works there is a definite return to the classic forms and contrapuntal devices which have been called Neo-classicism. Prokofiev, himself, has said that form is one of the basic elements of his style. It is the purpose of this thesis to discover the' formal organization and make a comparison of these sonatas with the works of Beethoven and his contemporaries.

This thesis on historical development of the construction of residential buildings and its effect on market prices of dwellings currently in Liberec accompanies the issue of correlation between architectural styles and price currently. It is divided into two parts, theoretical and practical. The theoretical part is focused on explaining concepts such as housing, housing stock, housing market and its failure, which follows the historical description of the construction of residential buildings. In other chapters of this part is talking about urban planning and housing policy. The practical part looks at this issue from the perspective of a particular town, which is Liberec. For him the basic information about the local conditions, history of architecture and subsequently through the commodities market tested real estate prices mentioned correlation and era of construction. The main source of research is in the thesis comparing average prices per m2 for each building type. During and at the end, the results are commented and compared.