[3] Also in that year, Lilienberg became first city planning engineer of Gothenburg, and the couple moved to Stora Gårda, where their son Björn was born in 1917.

[1] During this time, Wallberg served as an assistant to her husband and together they entered several urban-planning competitions including one in Chicago, where they attained the third position.

[4] In 1923, Wallberg entered the Gothenburg Exhibition, where she closely worked with the Förening Hus och Hema and presented on the city's housing.

[5] Amidst an unhappy marriage, Wallberg developed an interest in reading books on town-planning and philosophy.

[1] Following the divorce, Wallberg went to live with her sister Lotti, who had moved to Paris to marry Albert Jeanneret.

During this time, she turned her attention to functionalism and received training from Alfred Roth, an architect at Le Corbusier.