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 of ...

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 t ...

. 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 N ...

of Grefsenkollen. There is a local school, for which the first headmaster was

Rolf Ridar Rolf is a male given name and a surname. It originates in the Germanic name ''Hrolf'', itself a contraction of ''Hrodwulf'' ( Rudolf), a conjunction of the stem words ''hrod'' ("renown") + ''wulf'' ("wolf"). The Old Norse cognate is ''Hrólfr''. A ...

, 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 s ...

was once a teacher there.

Street names

The main road through the area is named after the first female member of parliament, Anna Rogstad, who was also a teacher and an early Norwegian

suffragette A suffragette was a member of an activist women's organisation in the early 20th century who, under the banner "Votes for Women", fought for the right to vote in public elections in the United Kingdom. The term refers in particular to members ...

. The uppermost road on the hill (with three yellow blocks of flats) was named after the first female professor of Oslo University in 1912,

Kristine Bonnevie Kristine Elisabeth Heuch Bonnevie (8 October 1872 – 30 August 1948) was a Norwegian biologist, Norway's first female professor, women's rights activist and politician for the Free-minded Liberal Party. Her fields of research were cytology, gene ...

, whilst another main road was named after the teacher and feminist Ragna Nielsen. The Selvbyggerveien (Self Builders Road) was named for the block of flats built by the housing cooperative Byggelag. Neighbourhoods of Oslo {{Oslo-geo-stub