Sonja Carstensen, later married as Sonja Meyer, studied at the School of Architecture 1919-27. She travelled to Italy in 1920 and 1925 and several times to England since 1927. For the plans of a Copenhagen church with 500 seats she was awarded the Neuhausen Prize. At the Charlottenborg Spring Exhibition the design was praised for its simplicity. Her first commercial project was a retirement home in Esbjerg in neoclassical style. She married the engineer Knud Meyer who was the director of a cooling ice factory, where Sonja had planned additional buildings. The couple divorced in 1947. Later she planned several villas including two for her children. She was the mother of well-known physicist Niels Ivan Meyer. Her project of a Large Hall for Tennis Tournaments, which was submitted for the art contests in 1924, was developed during her studies.