[1] He was responsible for a number of important public buildings of eclectic design constructed in the second half of the 19th century in Riga.

With his support Baumanis undertook studies in the Bauakademie in Berlin (1860–62) and in the St. Petersburg Academy of Arts (1862–65).

His buildings were mostly eclectic (a combination of Neo-Renaissance and Neo-Gothic elements) in design, with refined details and well-executed plastic forms.

He also designed the Alexanders Gymnasium (a secondary school) in Riga, now the Latvian Academy of Music, in 1870-75.

[2] Altogether he designed 17 Orthodox churches in the southern part of Estonia and Vidzeme and more than 150 buildings in Riga.