Thesis deals with issue of „brownfields“ in mining sphere and their regeneration. The work is splitted into two parts, theoretical and practical. The theoretical part contains basic economic terms, relative to theme of the thesis and basic information about brownfields and their dividing. The practical part contains valorization of social-economical utilization on the study case of brownfield mining area Most-Ležáky in north side of Czech republic. The aim of this thesis is to assess, if is the revitalization of this specific brownfield, and similar brownfields, social-economically effective. The assessment contains social-economic benefits and costs of specified area revitalization.