After taking her examen artium in liberal arts at Trondheim Cathedral School in 1925, she traveled to Paris where she was a student of Per Krohg in 1926–1927.

She insisted that a woman must have a "proper" education and be able to support herself and thought that architecture would be a good choice: "We need female architects, men are so impractical".

She later looked back with joy at the breakthrough of functionalism at the time[3] with a new aesthetic that inspired both her and her fellow students.

[11] The housing section of the exhibition, "Wohnung unserer Zeit" ('dwellings of our time'), was designed by several of the most important representatives of modern architecture, including Ludwig Mies van der Rohe and Walter Gropius.

She designed her graduate thesis while she was in Berlin, about which she wrote: "... in the shadow of 'Interbau', the city of the future that the leading architects of the time had joined forces to build".

Kaul was the press officer for the Berliner Ausstellungs- und Messe-Amt, which organized the building and architecture exhibition.

The same year she completed her education at NTH, her father's business in Trondheim, Johan Melandsø & Co. burnt to the ground.

The function of the building was expressed in the large glass panes of the shops – and the offices' horizontal rows of windows.

The young architect was interviewed by the newspaper Dagbladet about her work, and the journalist felt she belonged among the most extreme modernists in architecture.

[15] The city historian (byantikvar [no]) in Trondheim has put Melandsøgården on the list of buildings that are deemed to be of particular interest or importance.

[16] It is also one of the buildings mentioned in Trondhjems Arkitektforenings ('Trondheim Association of Architects') architecture guide for Trondheim: Arkitektur i 1000 år.

[17] In 1932, before Melandsøgården was officially opened, Melandsø moved to Oslo and worked for a year with architect O. Eindride Slaatto [no].

In the autumn of 1933 she married Ingo Kaul, the young German who had been a guide for the Norwegians on the study trip two years earlier, and moved to Berlin with him.

Through his work as press officer for the Berlin Messe-Amt, Kaul came into contact with several of Germany's famous architects, including Walter Gropius, the founder of Bauhaus.

[20] In 1939, the couple were in Norway to baptize their fourth daughter when Germany invaded Poland and World War II broke out.

This led to a divorce in 1946, in order to regain her Norwegian citizenship and thus residence and work permits in Norway.

After that she had her own practice for almost ten years and received a number of large jobs, leaving her mark on the center of Kristiansund in Gjenreisningsbyen [no].

She was a dedicated person and wrote several articles and opinion pieces, both in Arkitektnytt [no] and daily newspapers, often with her own illustrations.

While she worked with Slaatto, she had a side job as an artist for Dagbladet, where she made illustrations for theater reviews, among other things.

In 1932 she debuted as a painter at the exhibition Bildende kunstnerinners utstilling, which was arranged by Blomqvist art shop i Oslo.

In 1950 she published the book Sort og hvitt i ekteskapet ('Black and white in marriage'), with her own sometimes stark caricatures of relationships between women and men, in work and family situations.