The paper presents the concept of urban planning in accordance with sustainable development using modeling methods (experimental and numerical). The integrated approach to urban planning in this case means used interdisciplinary knowledge derived from: eco-construction, energy supply systems, but also the development of wind climate in cities and settlements (i.e., environmental aerodynamics). The subject of this study is a tandem arrangement of two rectangular blocks, which is characterized by the appearance of down-wash effect. The geometry was chosen based on the literature, which shows the case analyzed here, as a common architectural error that leads to extremely adverse effects of wind.