In 1864 he attended the Royal Joseph University, and in 1866 he continued architecture studies at the Bauakademie in Berlin, along with Ödön Lechner.

Hauszmann employed several architects who later became prominent in their own right, including Albert Kálmán Kőrössy.

In 1912 Hauszmann retired, and a year later he created a foundation for young architects graduating from the Royal Joseph University.

In recognition of his work, he was ennobled by King Charles IV of Hungary with the suffix de Velencze on March 10, 1918.

[1] In the following year, his private home was confiscated during the Hungarian Soviet Republic.