He was the first ban of the Vrbas Banovina, and during his term between 1929 and 1934 he significantly improved its capital city of Banja Luka, which celebrates him today as one of distinguished citizens.

In a short time with a substantial state financial aid he helped develop the Vrbas Banovina, and in particular Banja Luka.

[1] His greatest accomplishments include the Banska palata (now the city administration), Banski Dvor, the Banja Luka Theatre (founded in 1930 and today's building built 1934), Public Health Institute, the facilities and the Teacher's School of Agriculture, the east wing of the then Grammar School, and seven residential buildings for public officers (present-day Alley Saint Sava and at the Post Office).

[1] Although not a direct investor, builder or founder, Milosavljević was credited for the emergence of the Banja Luka town park with a monument to Petar Kočić, upgrading the hotel Bosna, paving and street lighting, and for the construction of Sokolski Dom, City Municipality and the Hotel Palace.

He left Banja Luka and the ban appointment on 22 April 1934 to become a Minister of Transport of the Kingdom of Yugoslavia.