Home LEGO® 21318 Ideas Tree House
[box-front] A Brick Apart LEGO Ideas Tree House 21318 set box featuring a detailed treehouse model with cabins and green leaves.
[box-back] LEGO treehouse set packaging with treehouse model and LEGO branding
[box-set] LEGO Ideas Tree House set with packaging and additional pieces on a white background
[box-front] LEGO Ideas treehouse set packaging on a white background
[box-back] LEGO treehouse set packaging with treehouse illustration on a white background
[box-back] Legoland box with LEGO branding and scenic illustrations on a white background
[built-white] Toy treehouse with detailed architecture and small figures on a white background
[built-detail] Treehouse model made from interlocking bricks with greenery on a white background
[built-detail] Treehouse model with greenery and a small pile of gold coins on a white background
[parts] Collection of gold and bronze snowflake-shaped decorations on a white background
[built-detail] Top-down view of a LEGO model of a bar with various elements.
[built-detail] Top-down view of a detailed LEGO model of a living room with furniture and decor.
[lifestyle-person] A Brick Apart LEGO Ideas Tree House set with autumn leaves being assembled by a woman in a bright living room
[lifestyle-shelf-built] A Brick Apart LEGO Ideas Tree House set with autumn leaves, three cabins, minifigures, and detailed landscape base.
[lifestyle-shelf-box] LEGO Ideas Tree House set packaging with treehouse illustration on a green box
[built-blue-black] A detailed LEGO treehouse set with multiple levels, stairs, a swing, and small minifigures, photographed against a solid blue and black background.
[box-front] A Brick Apart LEGO Ideas Tree House 21318 set box featuring a detailed treehouse model with cabins and green leaves.
[box-back] LEGO treehouse set packaging with treehouse model and LEGO branding
[box-set] LEGO Ideas Tree House set with packaging and additional pieces on a white background
[box-front] LEGO Ideas treehouse set packaging on a white background
[box-back] LEGO treehouse set packaging with treehouse illustration on a white background
[box-back] Legoland box with LEGO branding and scenic illustrations on a white background
[built-white] Toy treehouse with detailed architecture and small figures on a white background
[built-detail] Treehouse model made from interlocking bricks with greenery on a white background
[built-detail] Treehouse model with greenery and a small pile of gold coins on a white background
[parts] Collection of gold and bronze snowflake-shaped decorations on a white background
[built-detail] Top-down view of a LEGO model of a bar with various elements.
[built-detail] Top-down view of a detailed LEGO model of a living room with furniture and decor.
[lifestyle-person] A Brick Apart LEGO Ideas Tree House set with autumn leaves being assembled by a woman in a bright living room
[lifestyle-shelf-built] A Brick Apart LEGO Ideas Tree House set with autumn leaves, three cabins, minifigures, and detailed landscape base.
[lifestyle-shelf-box] LEGO Ideas Tree House set packaging with treehouse illustration on a green box
[built-blue-black] A detailed LEGO treehouse set with multiple levels, stairs, a swing, and small minifigures, photographed against a solid blue and black background.
Retired New Sealed Mint Box

LEGO® 21318 Ideas Tree House

Sale price $249.99
In stock
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Key Features and Benefits:

  • Retired LEGO Ideas set with limited availability, making it a valuable addition to serious collector portfolios
  • Exceptional build complexity and scale with 3,036 pieces provides hours of engaging construction for experienced builders
  • Three fully-detailed interior cabin spaces with authentic furnishings create an immersive display centerpiece
  • Interchangeable seasonal foliage system allows dynamic seasonal display rotation throughout the year
  • Includes four family minifigures and exclusive designer backstory, connecting collectors to the original fan creator's vision

Retired LEGO Ideas 21318 Tree House: 3,036-piece collector's masterpiece with three detailed cabins, seasonal foliage, and family minifigures. A premium display piece for serious builders.

[box-front] A Brick Apart LEGO Ideas Tree House 21318 set box featuring a detailed treehouse model with cabins and green leaves.

LEGO® 21318 Ideas Tree House

$249.99

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Enjoy the Build

[box-front] A Brick Apart LEGO Ideas Tree House 21318 set box featuring a detailed treehouse model with cabins and green leaves.
LEGO® 21318 Ideas Tree House
Sale price$249.99

Experience the magic of this extraordinary 3,036-piece LEGO® Ideas Tree House set, a masterpiece designed for serious builders and collectors. This intricate creation features a sprawling landscape base with three fully-detailed cabin rooms—a master bedroom, functional bathroom, and children's bedroom—all nestled within a magnificent brick-built tree.

The tree showcases innovative seasonal interchangeability, with swappable green summer foliage and warm autumn leaves crafted from sustainable plant-based plastic. Removable treetop and cabin roofs provide seamless access to the detailed interior spaces, while the landscape base bursts with play-inspiring features: a functional picnic setup, operational swing, bonfire scene, treasure hunt elements, and a hand-cranked wind-up crane on the bedroom balcony.

This set represents LEGO Ideas No. 26, born from fan designer KevinTreeHouse's vision and brought to life by the LEGO design team. The included booklet chronicles the creator's journey and design philosophy, making this a meaningful addition to any serious collection.

Key Features:
  • 3,036 pieces for an immersive, multi-hour build experience
  • Four family minifigures plus bird figure for interactive display
  • Three distinct cabin interiors with authentic furnishings and hidden details
  • Over 180 botanical elements in sustainable plant-based plastic
  • Interchangeable seasonal foliage for dynamic display options
  • Functional mechanical elements including wind-up crane and swing
  • Measures 37cm (14.6") high × 27cm (10.6") wide × 24cm (9.4") deep
  • Recommended for ages 16+; ideal for experienced LEGO builders
  • Features three fully-detailed cabin interiors with authentic furnishings, including a master bedroom with wind-up crane, functional bathroom, and children's room with bunk beds.
  • Includes innovative interchangeable seasonal foliage system with over 180 botanical elements in sustainable plant-based plastic for dynamic year-round display.
  • Offers an immersive multi-hour build experience with 3,036 pieces designed for experienced LEGO builders seeking complex construction challenges.
  • Comes with four family minifigures and an exclusive booklet detailing the original fan designer's creative journey and LEGO design process.
  • Measures 37cm high and creates an impressive landscape display with functional mechanical features including a hand-cranked crane and suspended swing.

Theme: Ideas

Pieces: 3,036

Minifigures: 4 (mom, dad, 2 children) + 1 bird figure

Age Range: 16+