By ed. M. : Bookstore publication and. K. Golubev under the company "Law", 1905. — 25 s. (in file). This book explores the issue of the legal regime of the structure , built on someone else's land - is it real estate? From the point of view of modern problems, an attempt to answer this question is also interesting, It’s still relevant today ,. and strong argumentation, in which a rich material of world and historical experience is attracted , with an in-depth analysis of a variety of examples. This is definitely useful for researchers of modern problems .. But in addition, this work will be useful to them as a sample of a comprehensive and detailed study and justification of the responsible position of the researcher. First of all, this is important to us because our domestic legal system refers to the family of continental European law, which has a different name - "Law of Universities" .. This emphasizes the fact that traditionally such a legal system as a whole is under the intellectual control of representatives of fundamental legal science - the basic laws are generated in the laboratories of these scientists and only after they come to the discussion of legislators. Unfortunately, this tradition has not yet been established, or rather, has not been restored in our country. The proposed work is one of the monuments of this lost culture ..