The article considers the engineering and geological conditions of the territory of the state museum-estate Ostafievo - "Russian Parnassus". A brief historical note on the formation of the estate is given. The brief characteristic of the research object is given. The scheme of the underground floor construction technological process is described. The result of this work should be a project of engineering-geological surveys, which will justify the development of the project of using the underground space under the main house of the state museum-estate Ostafyevo - "Russian Parnassus".