Project for the National Assembly was made by Konstantin A. Jovanovic in 1891. Later, in 1901, the project of John Ilkić was awarded and this was actually an adaptation of the previous work of Jovanovic. Construction began in 1907 and cornerstone was laid by King Peter I of Yugoslavia. Completing the post-war buildings, especially interior, helped Ilkić’s son Paul, and Nikolay Krasnov.
Building was built in the manner of academic traditionalism, with rich interior and external decoration. Construction was finished in 1936. The sculptural group ”Black horses playing’’ of the famous sculptor Toma Rosandić is set outside the main entrance in 1939.