Tonsenhagen is a neighborhood in the borough of Bjerke in northeast

Oslo Oslo ( , , or ; sma, Oslove) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population ...

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and the ...

. Built in the 1950s, it was one of the early new suburbs within Oslo. The neighborhood is situated on a hillside overlooking Oslo and the

Grorud Valley The Grorud Valley ( no, Groruddalen) is a valley and urban area or suburb in the northeastern part of Oslo, the capital of Norway. Four of Oslo's boroughs lie within the Grorud Valley; Bjerke to the west, Alna to the south, Grorud to the north ...

, surrounded by forest and near the

ski resort A ski resort is a resort developed for skiing, snowboarding, and other winter sports. In Europe, most ski resorts are towns or villages in or adjacent to a ski area – a mountainous area with pistes (ski trails) and a ski lift system. In Nort ...

of Grefsenkollen. There is a local school, for which the first headmaster was Rolf Ridar, and the Norwegian children's play and book writer

Ingebrigt Davik Ingebrigt Davik (14 April 1925 – 29 January 1991) was a Norwegian teacher, children's writer, broadcasting personality, singer and songwriter. Biography Davik was from the island Fjørtofta in Haram municipality on Sunnmøre. He was the so ...

was once a teacher there.

Street names

The main road through the area is named after the first female member of parliament,

Anna Rogstad Anna Georgine Rogstad (26 July 1854 – 8 November 1938) was a Norway, Norwegian politician, women's rights activist and educator. A member of the conservative-liberal Liberal Left Party, she was Norway's first female Member of Parliament of N ...

, who was also a teacher and an early Norwegian suffragette. The uppermost road on the hill (with three yellow blocks of flats) was named after the first female professor of

Oslo University The University of Oslo ( no, Universitetet i Oslo; la, Universitas Osloensis) is a public research university located in Oslo, Norway. It is the highest ranked and oldest university in Norway. It is consistently ranked among the top universit ...

in 1912, Kristine Bonnevie, whilst another main road was named after the teacher and feminist

Ragna Nielsen Ragna Vilhelmine Nielsen (née Ullmann) (17 July 1845 – 29 September 1924) was a Norwegian pedagogue, school headmistress, publicist, organizer, politician and feminist. Personal life Ragna Nielsen was born in Christiania (now Oslo) to Jø ...

. The Selvbyggerveien (Self Builders Road) was named for the block of flats built by the housing cooperative Byggelag. Neighbourhoods of Oslo {{Oslo-geo-stub