Kazan Street, 2, Saint Petersburg, Russia, 191186
The address is indicated in Dostoevsky's letter to his brother Mikhail dated September 17, 1846: “...By the Kazan Cathedral, at the corner of Bolshaya Meshchanskaya and Sobornaya Square, in the Kochendorf house, No. 25” (Modern address: Kazanskaya St., No. 2/1); and in a note to his brother Andrey dated October 18, 1846: “I live opposite the Kazan Cathedral, at the corner of Sobornaya Square and Bolshaya Meshchanskaya, in the Kochendorf house, in room 25, in the apartment of Madame Capdeville.” The official name of Kazanskaya Square has also been restored (the name Sobornaya Square does not appear on maps or in address books). Dostoevsky moved into Madame Capdeville’s apartment in the Kochendorf house around September 6, as can be inferred from his letter to his brother Mikhail dated September 5, 1846: “I went to rent an apartment and have already rented two small rooms from the tenants for 14 rubles in silver, with good furniture and servants, but I have not moved in yet.” The novella "Mr. Prokharchin" was completed here. The novella was part of the materials intended for the October issue of "Notes of the Fatherland"; it suffered from censorship during the review process. Dostoevsky writes to his brother: “‘Prokharchin’ is terribly disfigured in a certain place. Those gentlemen forbade even the word ‘official’ in that place. All the life disappeared. Only the skeleton of what I read to you remains. I renounce my novella.”
Later (the 1865 edition), Dostoevsky did not restore the censored cuts; they remain unknown to us. At this time, Dostoevsky met Alexander Ivanovich Herzen; this happened on October 5, 1846. Dostoevsky moved out of this apartment in the 20s of November 1846, relocating to the “association” of the Beketov brothers on Bolshoy Prospekt of Vasilievsky Island.
Sources:
M. Basina: “The Life of Dostoevsky. Through the Twilight of the White Nights”
Boris Nikolaevich Tikhomirov: DOSTOEVSKY’S ADDRESSES IN ST. PETERSBURG: A CRITICAL ANALYSIS OF SOURCES AND EXPERTISE OF LOCAL HISTORY PUBLICATIONS
http://family-history.ru/material/biography/mesto/dostoyevsky