The Vacant Central Europe project aims at addressing the problem of vacancy in Central European cities, by mapping empty properties, by researching planning instruments, architectural tools and by exchanging experiences and strategies of intervention that make the temporary use of empty properties and their conversion for another use possible. The project's objective is to turn the negative effects of the economic crisis and post-industrial economic restructuring into opportunities, by offering available space for various social and cultural initiatives, start-up companies and social enterprises. This catalogue presents the results of the project's first period.