He graduated as an architect from the Helsinki University of Technology in 1937. The building was also based on a competition winning proposal, made together with architect Keijo Petäjä, and was completed in 1952 in time for the Helsinki Olympic Games.
In Finland he is best known for the design of the Lasipalatsi ("Glass Palace") and Palace Hotel, both in Helsinki. Internationally Revell is best known for designing the Toronto City Hall, Canada. His next major work was the so-called Teollisuuskeskus (Industrial Centre), comprising offices, hotel (Palace Hotel), roof-terrace restaurant and ground-floor shops, situated on Helsinki"s south harbour seafront.
Revell’s international breakthrough came with winning the 1956-1958 architectural competition for the design of the Toronto City Hall, which he designed together with fellow Finnish architects Heikki Castrén, Bengt Lundsten, and Seppo Valjus.
The building was completed in 1965, the year following Revell’s premature death. Revell married Maire Myntti in 1941.
They had three daughters born in 1942, 1943 and 1945. He served as naval artillery officer in World World War II, and he was one of the survivors of the sinking of the Finnish Navy flagship, the coastal defence ship Ilmarinen in 1941.
In 1943, at a time when post-war reconstruction was already an important topic of discussion, Revell, along with Alvar Aalto, Aarne Ervi and Kaj Englund, was one of the instigators of the Finnish Building Information File (in Finnish: rakennustietokortisto), the Finnish version of a building standards file, to assist in standardization of building practices and component sizes.
The work was financed by the Finnish Association of Architects, under the name of the Standardization Institute. As part of the research the group had contacts with a similar organisation in Germany, run by architect Ernst Neufert. In June 1943, while the war was still going on, Aalto, Ervi and Revell, together with architects Jussi Paatela and Esko Suhonen, travelled to Germany at the invite of Neufert to witness the German building standardization efforts, including the construction of government buildings designed by Albert Speer for the Nazi government.
1935 Lasipalatsi ("Crystal Palace") Helsinki with Niilo Kokko, Olavi Laisaari and Heimo Riihimäki
1948 Palace Hotel Helsinki with Heikki Castrén
1953 Tower block in Tapiola, Espoo
1953/1954–1956, 1960 Kudeneule knitwear factory (current Printal), Hanko
1957 Villa Didrichsen Didrichsen Art Museum.
New wing 1964. Kuusisaari, Helsinki
1959 Sauna Johnson Racine, Wisconsin United States.
1960 City-Center office building (“Makkaratalo” or “Sausage Building”), Helsinki with Heikki Castrén
1961 Finnish Ministry of Defence (with Heikki Castrén), Helsinki. 1962 Office block in Vaasa now called the "Rewell Center"
1962 Watertower in Tapiola, Espoo
1966 Toronto City Hall Toronto Ontario Canada.