A plaque marking the apartment house where Leonid I. Brezhnev lived for 30 years was gone Friday morning, one day after a Kremlin directive struck a new blow at the legacy of the disgraced Soviet leader.

The Tass news agency announced Thursday that the names of Brezhnev and a later leader, Konstantin U. Chernenko, will be expunged from every town, school and factory christened for them and even from their former homes.The decision was the latest attack on the 18-year legacy of Brezhnev. It added Chernenko to President Mikhail S. Gorbachev's campaign to condemn the corruption and stagnation of their rule.

The plaque at 26 Kutuzovsky Prospekt called Brezhnev, who lived there until his death in 1982, a distinguished figure of the Communist Party and the Soviet government.

At the opposite end of the building, a tray under a plaque to Yuri V. Andropov, Brezhnev's successor and a mentor to Gorbachev, was full of artificial roses and tulips.

The Communist Party Central Committee, the Presidium of the Supreme Soviet parliament and the Council of Ministers, or Cabinet, "decided to drop the names of Leonid Brezhnev and Konstantin Chernenko from all factories, administrative regions, institutions of learning and organizations named after them," Tass said.

"In addition, memorial plaques will be removed from the houses where they lived," it said. "The latest decision was in response to numerous letters and appeals to central party and state agencies and to newspapers."