The very house where Kostya received a respite from a meeting with Moscow, which “violently wrapped around him, either the Boulevard Ring, then the Garden Ring, and pulled him through the streets and wrapped him into alleys”, stands still.

Although it underwent reconstruction in the 90s, you can recognize the cozy courtyard of the fifties where the Secret Erotomaniac Khobotov lived, his wife, the “holy woman”, Margarita Pavlovna and others the inhabitants of communal paradise.

However, there are some doubts about the correctness of this statement, since there can be no such staircase in the house as shown in the film (remember how Lyudochka ran away?) , but that's the details. After all, it could have been reconstructed as well.