[1] Johannes Oluf Ole Falkentorp was born into a family of architects in Copenhagen.
He was enrolled at the Royal Danish Academy of Fine Arts, where Historicism still dominated and his father was a central figure, but left shortly after.
He was then articled to Heinrich Wenck, head of the architectural office of the Danish State Railways.
Important works, all in Copenhagen, include the housing development Classen Have (1924, with Carl Petersen and Povl Baumann), the copper-clad office building Ved Vesterport (1930–32, with Povl Baumann) and the Hornbæk Badehotel (1935) and Hotel Astoria (1935) next to Copenhagen Central Station.
[2][3] [4][5] In 1911, Falkentorp was a co-founder and dedicated debating member of the alternative architecture association Den Frie Arkitektforening (now Danske Arkitekters Landsforbundan) .