Protected area of natural meandering Danube river is suitable and often used for a recreation. Investor´s desire was to propose him a concept of a small temporary building for a family holidays. The groundplan of the building is minimized. For this reason we have proposed a two-floor concept. The interior is designed as an openspace groundfloor with a loft. This connection serves to distribute light and heat. Communications and serving spaces are integrated directly into the living units, what allows to create a small living area suitable for 4 persons. In order to minimize the ecological footprint, the foundations are based on the earth boreholes. Covered terrace and proposed glass surfaces create a smooth visual communication between the interior and exterior. Shifted terrace mass creates an extention for an interior living space and links the object with a river side. Bearing cottage structure is made of the wooden CLT panels presented in its natural form. The highest part of the facade is protected by the offset construction of wood lamellas whitch helps to control the indoor temperature. Acceptable energy stability of the building was achieved even with a visible load-bearing structure and a subtility of its elements.