Polestar KOJA Tree House
EV maker Polestar’s KOJA is a secret, minimalistic tree house that could be mistaken for a spaceship in the Finnish forest. It was designed by Kristian Talvitie to be a micro space that is accessible for people who would otherwise take a much longer trip to experience the wilderness. The tree house encapsulates both Polestar design language and sustainability values, while minimizing the use of material as well as energy.



To make KOJA a reality, Kristian Talvitie collaborated with the Polestar Design team in Gothenburg, Sweden and colleagues at Finnish design agency Ultra. In the end, they used sustainable and durable materials, including locally sourced wood and wool, to build KOJA. The finished tree house blends in with its natural environment and also creates an eye-catching contrast. Then there’s the Starburst House in Joshua Tree made entirely from shipping containers.

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LEGO Ideas Tree House 21318 Build and Display (3036 Pieces)
  • Challenge advanced LEGO builders and inspire role-play fun with this highly detailed LEGO Tree House, featuring 3 cabins, a tree with interchangeable summer and fall leaves and play-inspiring features including a crane, swing and a treasure chest
  • This cool tree house toy playset includes 4 minifigures: mom, dad and 2 children, plus a bird figure
  • Measures over 14” (37cm) high, 10” (27cm) wide and 9” (24cm) deep
  • 3036 pieces – This adult LEGO set for ages 16+ makes an unusual gift for LEGO fans
  • This LEGO Ideas 21318 Tree House eco-friendly toy features over 180 botanical elements made from plant-based polyethylene plastic and can be built together with all other original LEGO building toys and LEGO bricks for creative play

Polestar KOJA Treehouse
Polestar KOJA Treehouse
Polestar KOJA Treehouse
Polestar KOJA Treehouse
Polestar KOJA Treehouse
Polestar KOJA Treehouse

We were fascinated by the idea and how it translates our brand values into a different environment. That was key for us, and we were so impressed that we decided to build it,” said Maximilian Missoni, Head of Design at Polestar.