The time of the short Twentieth Century. Growth of values and decay of matter,

The article deals with some cultural reflections and new methodologies developed within a European research project focused on the enhancement of the architectural heritage built in the first half of Twentieth Century. On such a heritage, still not historicized, the community as a whole does not express unanimous judgements of value. In the meantimethis particular heritage it is extremely fragile with respect to the passage of time. The time of the «short century» acts in a different way, increasing the value of the architectures (in terms of critical fortune and authorship) but, also, highlighting its fragility and, at times, its ideation and constructive defects. The research aims at defining criteria to identify the most significant architectures and some methodologies of social inclusion for their future valorisation.