After the war Rinnan became a teacher in the department of architecture at the
Norwegian National Academy of Craft and Art Industry (in 1961 the department became the
Oslo School of Architecture. Also, he soon became famous for his own works. He was hired by the state to conduct work for the
1952 Winter Olympics, and designed the
Holmenkollen ski jump, the speed skating arena
Bislett Stadion and the ice hockey arena
Jordal Amfi. He was also a consultant for the sports department of Oslo municipality, and designed the swimming arena
Frognerbadet and the indoor multi-sports arena
Njårdhallen. In the 1950s and 1960s Rinnan worked with several grand building projects for Oslo municipality. He planned several entirely new neighborhoods in the city, including
Tveita and
Lambertseter; the latter called "the first Norwegian dormitory town". For the Oslo Bolig- og Sparelag he and Olav Tveten designed
housing co-operatives at
Nordre Åsen,
Keyserløkka,
Valle-Hovin,
Teisen,
Oppsal,
Haugerud,
Trosterud and
Hovseter between 1948 and 1976. Rinnan also worked with the
University of Oslo's expansion at
Blindern between 1958 and 1963. Rinnan had formerly been an editorial board member of the periodical
Plan, from 1933 to 1936. From 1959 to 1963 he presided over the
National Association of Norwegian Architects; he became an honorary member here in 1980. Rinnan was married twice. He died in February 1997 in Oslo. ==References==