In 1900 he started working at the Polytechnic Institute as a teacher of art history. From 1902 to 1912 he was the Arts Director of the Central School of Applied Arts.[3] In 1905 Lindgren departed from Gesellius, Lindgren, Saarinen. He set up his own office in 1908. Bertel Liljequist [fi] joined his office in 1916.[1]
In 1919 he replaced Gustaf Nyström to the position of the Professor of Architecture at the Helsinki University of Technology.[2] As a professor he taught and influenced the notable Finnish architect Alvar Aalto.[5][1]
Notable buildings
Haikko Manor, 1913
The original Estonia Theatre in Tallinn, designed together with Wivi Lönn, 1913 (later heavily damaged during, and rebuilt after, World War II)