The protection and conservation of twentieth century architectural heritage is a world wide concern. There is vast amount of existing twentieth century architectural heritage; moreover they are important layer of the city's history. So there should be more efficient way of conservation_not only protecting the elitist heritage but also various heritages of twentieth century architectural heritage. In the master plan of Helsinki city, there are many places that are protected. They consist various architectural heritage; from the individual architecture to whole suburban areas. So this article analyses masterplans issued in 1992 and 2002 by Helsinki City Planning Bureau and reveals how the twentieth century architectural heritages are treated in the masterplans.
