The LEGO Ideas Tree House Set 21318 challenges builders with a 3,036-piece model that swaps between green summer leaves and yellow-and-brown fall foliage.

Specs:

• Set number: 21318
• Piece count: 3,036
• Age range: 16+
• Includes four mini-figures: mom, dad, two children
• Includes one bird figure
• Features a landscape base, a tree with interchangeable leaf elements, and a tree house with three cabins
• Made from sustainable plant-based plastic
• Closure: brick-and-stud connection system
• Branding: LEGO logo on studs and mini-figure torsos

The LEGO Ideas Tree House Set 21318, first released in August 2019, stands out for its modular leaf system and three-cabin tree house design. The set’s sustainable plant-based plastic construction makes it a thoughtful choice for collectors aged 16 and up, ideal for a quiet weekend build or display in a home office.