According to his year of birth, he started to built houses in traditional styles. He studied at two schools called Baugerksschule. He was trained to be a builder. He was also teached in drawing. After his studies he started as a drawer in Frankfurt/Main, where he started to work in an architectural office. This office was responsible for the construction of a new department store in Celle in 1906. That was the reason, Otto Haesler decided to move there and to open his own office.
Haelser was much into aspects of social housing. In 1924 he started to follow the new trends in architecture. He was dealing with the the constructions made of steal skeletons, an idea to save money and to start an industrialised prefabric construction of buildings. The city of Celle benefited from his work three larger housting estates. Haesler's knowledge was also used in Magdeburg and Karlsruhe.
With the beginning of the Nazi regime in Germany he moved to Eutin in North Germany. During World War II he was employed as a city planning officer in the German-occupied cities of Łódź, Poland and Lviv, Ukraine.
Although being convinced of the Nazi-ideology, he started a life in East Germany in 1946. He worked in Rathenow to rebuilt the town. Later, in 1951, he even became a professor of the Deutsche Bauakademie, the most important institute for architecture in the GDR. Since 1953 he lived in Wilhelmshorst and died on a building site in 1962.
- Wikipedia Otto Haesler
- Haesler: Mein Lebenswerk als Architekt, 1957