21318

LEGO Ideas set 21318, Tree House, depicts a lived-in structure built among tree branches, with a domestic and nature-focused setting. Released in 2019 under LEGO Ideas and CUUSOO, it contains 3037 parts and 4 minifigures.

Tree House belongs to LEGO Ideas and CUUSOO, the theme associated with fan-submitted concepts developed into official sets. It is not presented as an external film or television licence. Its subject is a self-contained tree dwelling, giving the model a grounded, everyday scene rather than a franchise setting.

The set includes 3037 parts and 4 minifigures. Rebrickable lists them as Kid, Dark Red Torso, Dark Tan Leg, Dark Orange Hair, Tan Torso, Dark Brown Legs, Medium Nougat Hair, Kid, Dark Tan Torso, Dark Brown Legs, Dark Blue Hat, and Medium Nougat Torso, Dark Bluish Grey Legs, Dark Brown Hair. The build focuses on the tree, the house structure and the surrounding environment.

It suits display as well as open-ended play, because the subject is immediately understandable but not tied to a fixed storyline. Within LEGO Ideas and CUUSOO, it sits among large scene-based models built around a distinctive construction idea rather than vehicles, licensed characters or a standard town building.