(b Slagelse, 10 Sept 1894; d Copenhagen, 22 Dec 1984). Danish architect. He trained at the Kunstakademi in Copenhagen, graduating in 1921. His early buildings of the 1920s were neo-classical in style, but by the beginning of the 1930s he had become a leading exponent of Functionalism. Lauritzen successfully combined the latter with a refined use of materials and detailing, designing Functionalist buildings that were both elegant and intimate in scale. Such qualities were apparent in his airport building on Amager, outside Copenhagen (1937–9). Its wave-shaped concrete roof was very advanced for the time; the plan also was unusually detailed and well developed for this type of building.