摘要：Style called Art Nouveau appeared in the last quarter of the XIX century in Austria-Hungary and quickly spread throughout Europe. This style has reached the heyday in Russia in the end of the 1890s-1900s. The object of classic Art Nouveau style characterized by the asymmetrical facades, the almost full abandonment of historical decorative elements, the extensive use of the plant ornaments, and other characteristic feature was considered in this paper on the example of the F.P. Efremov`s mansion in Cheboksary, Russia. The project of building reconstruction was also proposed.
