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Set 21318 Tree House
LEGO Ideas and CUUSOO

Tree House

The Tree House is part of the LEGO® Ideas range and recreates a multi-level treehouse built around a winding trunk and a small river. With 3,037 pieces and 467 unique parts, it's one of the larger sets from 2019. Four minifigures bring the workshop, living area and lookout platform to life.

Set number
21318
Year
2019
Pieces
3,037
Minifigures
4
Theme
LEGO Ideas and CUUSOO
Different parts
467
What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 467

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Spare parts (77)

These extra parts come with the set in case one gets lost.

Minifigures 4

Description

A trunk with three levels

The model is built around a naturalistically shaped trunk that spirals upwards in shades of brown and nougat, carrying three differently themed levels. Reddish Brown and Medium Nougat dominate the bark and branches, while small leaf elements in green stand in for foliage. Each level has its own focus, from a workshop with tools to a living room and a lookout platform with a telescope. Construction switches between technical building for the trunk and classic house-building for the rooms, which keeps the build varied from start to finish.

Waterwheel, river and accessories

At the base of the tree, a waterwheel turns on a crank handle, reinforcing the impression of a small river running past the house. Dark Blue represents the water and creates a clear contrast with the earthy brown tones of the trunk. Around the river you'll find a vegetable patch, a tree-stump barbecue and further accessories that make the treehouse feel genuinely lived in. These small scenes reward a closer look once the model is finished and on display.

Four minifigures and their home

The four minifigures include a father-and-son pair plus two further characters who fish, tinker and relax around the treehouse. Accessories range from a fishing rod to tools and a small fire pit, underlining the calm, nature-focused feel of the set. Unlike many themed sets built around vehicles or fantasy characters, the Tree House relies on everyday scenes that suit open-ended play. Black is used sparingly for windows, railings and technical details throughout the build.

467 parts for your own ideas

With 467 unique parts, the set offers a wide pool of shapes and colours that also works well for your own modifications, such as extra branches or a fuller canopy. The parts list on this page shows exactly which piece, in which colour, appears and how often, so you can reorder missing bricks or expand the model with confidence. For collectors, the Tree House is also a good example of how a fan-submitted LEGO® Ideas project gets turned into a finished retail set.

FAQ

How many pieces does the Tree House 21318 have?
The set contains 3,037 pieces across 467 unique parts, plus 4 minifigures.
Who is the Tree House suitable for?
Given the build time and level of detail, it suits experienced builders looking for a display piece for a shelf or desk.
Can I modify or extend the Tree House?
Yes, the 467 different parts work well for adding branches, extra foliage or your own extensions. The parts list helps you find matching bricks in the right colour.

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