The author of the design was an architect Miladin Prljevic but the Cominiform disapproved of this idea. Then the museum was transferred into the building of Mortgage Bank. After World War II, the first renovation of the bank building was done by architect Dobroslav Pavlovic in 1950 but the overall reconstruction of the building was made 1965-1966 by architects Alexander Deroko, Petar Anagnosti and Zoran Petrović. The central dome was restored and the central tract with offices and workspaces was lifted. After an adaptation, the original hall with bank windows was converted into a library. The originally main and monumental three-way staircase entrance from the Republic Square received an internal character while the other entrance from Vasina street became the main entrance to the Museum, which is connected directly to the other hall with bank windows was. In a functional arrangement, the building underwent upgrading doubling space and communications, while in terms of design, maintained the characteristic elements of 1902 and in terms of art as an integral unity. Interior renovation from the sixties of the 20th century was done in such a manner that it is not visible from the outside and it doesn't disturb the communications inside the museum.