[2] After graduating from the Crafts School in Graz in 1891, at the age of seventeen, he came to Zagreb where he was a trainee in local construction firms.
He studied architecture the Akademie der bildenden Künste in Vienna and opened a studio in Zagreb in 1899.
He worked at the Engineering College (Technical High School) in Zagreb from 1920, attaining a professorship in 1922.
After the World War II the Life Achievement Award for architects in Croatia was named "Viktor Kovačić".
Kovačić's atelier in 21 Masaryk Street is exhibited to the public under the auspice of Zagreb City Museum.