The southern district of Warsaw connected with Polish and European history, classified as Western Wilanów in administrative terms, represents exceptionally precious natural and cultural values, including the historic palace and orchard complexes in the districts of Wilanów, Natolin and Ursynów. Instead of managing this area in compliance with the principles of the sustainable development of Warsaw, local authorities have agreed to the construction of commercial and residential buildings and consented to crossing this area the Berlin-Moscow highway. The author proves the adverse impacts of these decisions.