
Trettenparken
A temporary activity park alongside Skur 13 at Filipstad, built largely from reused materials. The Oslo Tree stands here.
The Oslo Tree is a 14-metre-tall light artwork with 150,000 LEDs in Trettenparken, right next to Tjuvholmen. Watch it change colour in 3D, day and night.

The tree stands in Trettenparken at Filipstad, just west of Tjuvholmen. In the model the foliage changes colour, just as the LEDs do on the real tree. In the daytime view you can see its shape, with the trunk and the round crown.
Beneath the tree, a woman is walking her dog. In the evening, a group of people in hats stand looking up at the lights.
The tree is at its best in the evening and at night, when the colours glow against the dark sky. Go down to ground level in the model to see the tree as you would from the park, with the lights above you.
The Oslo Tree is a light art installation, not a real tree. It was made for the Burning Man festival in the USA in 2017, bought by Stein Erik Hagen's company Canica and lit in Trettenparken on 1 December 2019. Canica lends it to the city and pays for its operation. Hagen himself calls it a “spellbinding art installation”.
The installation is 14 metres tall and 14 metres wide. Inside its 15,000 leaves are a total of 150,000 computer-controlled LEDs, which create patterns and effects. The light show is inspired by nature and changes with the seasons.
The tree is not on Tjuvholmen itself but close by, at Filipstad brygge. It makes a natural destination for an evening walk from Tjuvholmen. The tree is the result of a collaboration between several specialists in production and design.
The tree stands in Trettenparken at Filipstad, just west of Tjuvholmen. From Tjuvholmen, walk towards Filipstad brygge. The lights are best seen after dark. Updates about the tree are posted on the Instagram account @oslotreet.
| Lit in Oslo | 1 December 2019 |
| Donated by | Canica (Stein Erik Hagen), on loan |
| Size | 14 metres tall and 14 metres wide |
| Lights | 150,000 LEDs in 15,000 leaves |
| Location | Trettenparken, Filipstad |




A temporary activity park alongside Skur 13 at Filipstad, built largely from reused materials. The Oslo Tree stands here.

The King's ship from 1937, a gift from the Norwegian people in 1948. In winter it lies at the quay at Filipstad.

A harbour shed from 1963 that has become a skate and activity hall, with changing art on its façade.
Sources: Oslo Treet (official website) · Nettavisen – Stein Erik Hagen's self-illuminating tree · Oslo Havn – Bekkelagsbadet og Trettenparken kjemper om pris · Life in Norway – The Oslo Tree · Kongehuset (the Royal House) – The Royal Yacht “Norge” · Wikipedia (Norwegian) – Tjuvholmen