The interior is arranged according to a three-tract corridor plan. In the basement there are rooms with barrel vaults on straps and sail straps. On the ground floor in the central part of the built there is a hallway with cross-and-barrel vault with straps based on pilasters and wall-contacting pillars. From the side of Srebrna Street there is a second hallway, covered by a modular arch and partly by a sail vault, with additional light provided by a skylight with two windows. The main staircase has a barrel vault with a segment arch. The stairs have three legs, the central leg opened to the inside of the staircase by three arches with a pattern of a basket arch, based on pillars. The walls of the corridor are decorated by wall-contacting pillars. Some of the rooms on the ground floor have a barrel vault with lunettes, cross-barrel; vault or sail vault. On the first floor there is a hall with three fields of sail vaults on straps in the back tract of the building, and on the second floor there are two rooms in the front tract with a sail vault and a vault on straps and a representatives meeting hall.
