The aim of the present work is to analyse the legal, organizational and location conditions of the wind farm in the Margonin municipality. The Margonin wind farm is the largest environmental investment project in Poland. Wind power plants have been located in two areas, covering an area of over 50 km2 each. The planning procedure was launched in 2007, and the first windmills started their operation in 2009. The investment project implementation procedure was conducted in accordance with the law that was in force at the time. The body conducting the administrative proceedings provided public participation in the process, and the comments submitted by the residents were fully taken into account. In addition, the investor, previously required to carry out the acoustic analysis of the investment project, has silenced some of the station on the basis of the results. Distances from buildings, as well as sites of nature conservation have been preserved. The launch of the largest wind farm in Poland contributed to the improvement of the material situation of the inhabitants of the Margonin municipality as well as the overall functioning of that municipality. Currently, the investor is still actively involved in maintaining the appropriate condition of technical infrastructure.