On October 1, 1934 to station there has arrived the trial train from Sokolniki station.
Lobbies are in buildings of the Kazan station and at Komsomolskaya Square at the Leningrad and Yaroslavl stations (the lobby is built at reconstruction in 1952).
In registration of station pink marble is used, a floor is laid out by granite. The station is decorated with a mayolikovy panel of "Metrostroyevtsa" (artist E. E. Lansere). Capitals of columns are decorated with the bronze emblem of the Communistic International of Youth (CIY) emphasizing a contribution of Komsomol members of the 30th to construction of the subway. Over ways the balconies connected by pedestrian bridges are located.