The socio-economic and political changes of the end of the 20th century in Central and Eastern Europe had significant impacts on the transformation of urban spaces, especially in industrial and mining towns. The article attempts to explain the essence of these changes concerning the spatial development of—a small post-mining town in southern Poland. This article evaluates urban development policy in response to the significant land-use changes in the small post-mining city of Radzionków, with particular attention to the transformation of brownfield sites to semi-natural areas of regional importance. This issue is interesting for two reasons. First, this small city, located in a large European agglomeration, has to face competition focused on interesting regional projects. Second, there is a desire for reindustrialization as a remedy for job losses in mining and heavy industry. The successful establishment of a large botanical garden in this city provides a case study for discussing the future of small post-industrial cities and the development of land use policy regarding valuable natural areas located in post-industrial and post-mining areas. This study also indicates the vital role of the creative management factor.