The embankment of the Griboyedov Canal, 73, is the house where, according to one version, lived the heroine of Fyodor Mikhailovich Dostoevsky's novel, Sonia Marmeladova. The house is on a corner, located at the end of Malaya Meshchanskaya Street, where Dostoevsky himself lived while writing the novel "Crime and Punishment," and it faces the "ditch." The house has a characteristic "ugly" blunt corner — one of the distinctive features of Sonia Marmeladova's house. The house is No. 73 on the embankment of the Griboyedov Canal (then called the Catherine Canal) and No. 13 on Kaznacheyskaya Street (then Malaya Meshchanskaya). Against this version speaks the fact that the house, as seen in this early 20th-century photograph, was two stories high, while Sonia, as is known, lived on the third floor. Two more floors were added during the Soviet era. However, this version of Sonia's house was proposed by Nikolai Pavlovich Antsiferov in the 1920s, when the house was still two stories. From 1849 to 1918, this building housed the Provincial Treasury. And the street, apparently, was renamed in 1882 from Malaya Meshchanskaya to Kaznacheyskaya precisely for this reason. Malaya Meshchanskaya (Kaznacheyskaya) Street: "And Raskolnikov went straight to the house on the ditch where Sonia lived. The house was three stories, old, and green. He found the janitor and got vague directions from him about where the tailor Kapernaumov lived. Finding the entrance to a narrow and dark staircase in the corner of the yard, he finally went up to the second floor and came out onto the gallery that ran along the courtyard side. It was a large room but extremely low, the only one rented out by the Kapernaumovs, whose locked door was in the wall on the left. On the opposite side, in the wall on the right, there was another door, always tightly locked. There was another neighboring apartment there, under a different number. Sonia's room resembled a shed, having a very irregular quadrilateral shape, which gave it something ugly. The wall with three windows facing the ditch cut the room somewhat diagonally, so one corner, terribly sharp, ran deep inside, so that in dim light it could not be seen well; the other corner was too ugly and blunt. There was almost no furniture in this large room. In the corner to the right was a bed; next to it, closer to the door, a chair. Along the same wall where the bed was, near the door to the other apartment, stood a simple pine table covered with a blue tablecloth; near the table were two wicker chairs. Then, near the opposite wall, close to the sharp corner, stood a small, simple wooden chest of drawers, as if lost in the emptiness. That was all there was in the room. The yellowish, worn, and tattered wallpaper was blackened in all the corners; it must have been damp and stuffy here in winter. Poverty was visible; there were no curtains even at the bed."

Dostoevsky did not give the exact address of the house where Sonia lived, but according to researchers of his work, the building of the Treasury Chamber on the Catherine Canal is described in the novel with accuracy. According to Dostoevsky's description, Sonia lived in a completely disgusting place: "It was a large room but extremely low... Sonia's room resembled a shed, having a very irregular quadrilateral shape, which gave it something ugly. The wall with three windows facing the ditch cut the room somewhat diagonally, so one corner, terribly sharp, ran deep inside, so that in dim light it could not be seen well; the other corner was too ugly and blunt. There was almost no furniture in this large room... The yellowish, worn, and tattered wallpaper was blackened in all the corners; it must have been damp and stuffy here in winter. Poverty was visible; there were no curtains even at the bed." The government institution was located here from the mid-19th century (earlier the Treasury Chamber was located on Gorokhovaya Street) until 1918 (when this government body was abolished altogether). The appearance of the building on the current Griboyedov Canal has changed significantly compared to the century before last. For example, during the Soviet era, two more floors were added to the house (now it is a four-story building), and the facade decoration was changed to the so-called "Stalinist classicism."

Source:

https://kudago.com/spb/place/dom-soni-marmeladovoj/

https://family-history.ru/material/biography/mesto/dostoyevsky/kanal73/