Lego Ideas Tree House 21318 [Set Review]

Ever spent your childhood afternoons dreaming of a cozy hideaway nestled amongst the leaves? The LEGO Tree House 21318 set lets you build that dream, brick by brick!

With 3,036 pieces, this set is a rewarding challenge for LEGO fans 16 years old and over. It's also perfect for families looking for a collaborative project to tackle together or anyone who appreciates a touch of nature in miniature form.

This stunning treehouse captures the whimsical charm of childhood imagination, all built with the satisfaction of LEGO engineering.

Set Details

The LEGO Ideas Tree House 21318 set arrives in a vibrant box, showcasing the completed treehouse in all its glory. Crack it open to discover a treasure trove of building bricks, divided into multiple numbered bags (the exact number remains a surprise!).

With a whopping 3,036 pieces, this set promises an engaging building experience that can take several hours to complete. But fear not; even if you're a beginner builder, the included instruction booklets (one likely for each section of the treehouse) offer clear and easy-to-follow step-by-step instructions. This ensures a frustration-free and enjoyable building journey for LEGO fans of all ages. 

This ensures a frustration-free and enjoyable building journey for LEGO fans of all ages. But that's not all! The real magic comes alive with the incredible features packed into this set.

Get ready to explore a world of imaginative details, from the interchangeable summer and fall foliage to the three fully furnished cabins: a master bedroom, a bathroom, and a kids' room. Each cabin boasts its own unique charm, like the wind-up crane on the master bedroom balcony or the treasure map hidden within the kids' room.

Features LEGO Ideas Tree House

The LEGO Ideas Tree House 21318 isn't just a build for a beautiful tree house; it's brimming with features that spark endless storytelling and imaginative play. Here's what makes this set truly stand out:

Seasonal Flair: Capture the magic of changing seasons with interchangeable green summer leaves and yellow and brown fall foliage. This lets you customize your treehouse and create different play scenarios throughout the year.

Three Unique Cabins: Explore the heart of the treehouse with its three fully furnished cabins! The master bedroom boasts a cozy bed and a working wind-up crane on the balcony, perfect for hoisting supplies. The bathroom features a toilet, sink, and bathtub for a touch of realism. Finally, the kids' room is a haven for creative adventures, complete with bunk beds and a hidden treasure map waiting to be unearthed.

Playful Details: The LEGO Ideas Tree House goes beyond just the cabins. Build a charming picnic area complete with a table and seats for the minifigures to enjoy a delightful outdoor meal. Swing from the branch on a sturdy swing set, or tell spooky stories around a crackling bonfire (built with LEGO bricks, of course!). 

Family Fun: This set is perfect for families to build together. With multiple numbered bags, different sections can be tackled simultaneously, making the building process a collaborative and engaging experience. 

Sustainable Materials: The plant-based polyethylene plastic used for the leaves and other foliage elements is a big win for eco-conscious builders. It shows LEGO's commitment to a greener future without sacrificing quality or building experience.

These features, combined with the stunning overall design, make the LEGO Ideas Tree House 21318 a truly unique and captivating set that will appeal to LEGO fans of all ages and interests. 

Building the Lego Treehouse

The Tree: A Strong Foundation

The secret lies in a hidden technical frame that forms the core of the tree. This internal framework provides exceptional stability, allowing you to build high without worrying about the treehouse toppling over.

The outer bark of the tree is cleverly constructed using various LEGO pieces, like plates and tiles. These are layered together to create a realistic and textured bark effect. 

The sturdy branches that support the treehouse cabins are built using a combination of traditional LEGO bricks and specialized Technic connector pieces. This ensures a secure connection between the branches and the main trunk, allowing for creative placement of the different cabins.

The real fun comes with the interchangeable leaf elements. Choose from vibrant green leaves for a summery look, or switch to the yellow and brown foliage pieces to recreate a stunning autumn scene. This lets you customize the tree's appearance and add a touch of seasonal whimsy to your model.

The Cabins: Cozy Hideaways in the Leaves

This luxurious retreat features a cozy bed for resting after a day of adventures. Step out onto the balcony and operate the working wind-up crane—perfect for hoisting treasures or supplies up to the treehouse. Don't forget to check out the other cool details like a pair of scissors, a ship-in-a-bottle, and a compass, adding a touch of personality to the space.

Even a treehouse needs a bathroom! This compact cabin features a buildable toilet, sink, and bathtub, ensuring all the comforts of home are present. 

Unleash your imagination in the vibrant kids' room! Bunk beds provide a place for siblings to dream of nighttime adventures. Look out for the hidden treasure map tucked away; who knows what exciting discoveries it might lead to?
Each cabin boasts a removable roof, allowing for easy access to place miniatures and furniture inside. This thoughtful design makes playtime and rearranging the interior a breeze. So get ready to create endless stories within these cozy hideaways nestled amongst the leaves. 

Lego Tree House Minifigures & Accessories

No treehouse is complete without its inhabitants! The LEGO Ideas Tree House 21318 set comes with a delightful cast of characters to spark your storytelling.

Build a family of minifigures, including a mom, dad, and two children. Imagine the adventures they'll have exploring the treehouse and its surroundings. A cute little bird figure adds a touch of life to the tree and encourages imaginative tales about woodland creatures.

The set is packed with fun accessories to enhance your treehouse adventures. Build a charming picnic table with enough seating for the entire family to enjoy a delightful outdoor meal.

Swing from the sturdy swing set or gather around a crackling bonfire (built with LEGO bricks, of course!) for spooky stories under the stars. Don't forget the hidden treasure map waiting to be unearthed in the kids' room—who knows what exciting discoveries it might lead to? 

These minifigures and accessories breathe life into the LEGO Ideas Tree House, making it a truly immersive and interactive building experience for all ages. 

Play and Display

The LEGO Ideas Tree House 21318 isn't just a fantastic build; it's a springboard for endless creativity!

This set is a dream come true for imaginative play. Build a family and embark on countless adventures together. Explore the treehouse, have picnics under the leaves, or swing from the branches. The possibilities are endless!

Follow the hidden treasure map and unearth exciting secrets within the treehouse. Who knows what you might find?

The cabins' removable roofs allow for easy access to the interior space. This makes playtime a breeze, letting you place minifigures and furniture inside without hassle.

Display Options

Once your masterpiece is complete, it deserves a place of honor! With its impressive size and stunning aesthetics, the LEGO Ideas Tree House is a guaranteed conversation starter.

Standing tall with its intricate details and vibrant colors, this treehouse is a sight to behold. Display it on a shelf, coffee table, or anywhere it can be admired.

Bring a touch of the outdoors into your home. The treehouse's natural elements and intricate foliage create a charming and calming display piece.

Let the treehouse inspire further creative endeavors. Display it alongside photos, artwork, or other natural objects to create a unique and personalized space.

Whether you choose to play out endless adventures or showcase it as a stunning display piece, the LEGO Ideas Tree House 21318 is sure to spark joy and creativity for builders of all ages.  

Pros & Cons: LEGO Ideas Tree House 21318


  • Unique, engaging, complex and rewarding building experience
  • With fun techniques for the tree and interchangeable foliage.
  • Removable roofs, a working crane, and a hidden treasure map make this imaginative play.
  • Multiple numbered bags allow for collaborative building, perfect for families to tackle together.
  • Stunning display piece, finished treehouse boasts impressive size and beautiful details
  • Set makes it a conversation starter in any room.
  • Sustainable materials, the plant-based plastic elements are a win for eco-conscious builders.


  • With a high piece count, the set comes at a premium price point.
  • The process of constructing the numerous branches can be repetitive for some builders.
  • While the included minifigures are charming, the set offers a lower minifigure-to-price ratio compared to some other LEGO sets.
  • Changing between summer and fall leaves requires rebuilding the entire top section of the tree, limiting easy seasonal customization.


With its intricate details, engaging build process, and delightful play features, LEGO Ideas Tree House 21318 offers something for everyone. Whether you're a seasoned LEGO builder or a newcomer seeking a rewarding challenge, the Tree House promises hours of enjoyment and a stunning display piece to cherish.

While the price tag might seem like a leafy investment (typically ranging from $[price range] depending on retailer), the sheer number of pieces, unique building techniques, and endless play possibilities make it a worthwhile splurge for LEGO fans. You can find the LEGO Ideas Tree House at the official LEGO store or through various online retailers.

So, gather your family, grab a cup of hot cocoa, and embark on a building adventure unlike any other. The LEGO Ideas Tree House 21318 awaits, ready to ignite your creativity and build lasting memories.

Light Kits for LEGO Ideas Tree House

The LEGO Ideas Tree House 21318 is a stunning display piece on its own, but have you ever imagined bringing it to life with captivating lighting effects? While building with bricks is a rewarding experience, adding an LED light kit can truly transform your LEGO creation into a magical centerpiece. 

Imagine the cozy glow emanating from the treehouse cabins at night or the twinkling fairy lights illuminating the leaves. Light kits specifically designed for the LEGO Ideas Tree House allow for incredible customization. You can highlight architectural details, create a starry-night sky effect, or even make the hidden treasure map glow with a mysterious light. 

Exploring light kits opens up a whole new world of creativity for LEGO enthusiasts. Not only does it enhance the visual appeal of your build, but it also creates a truly immersive experience, perfect for sparking even more imaginative play or adding a touch of ambiance to your display. 

So, if you're looking to elevate your LEGO Ideas Tree House and take it to the next level, consider adding a light kit. It's a fantastic way to personalize your build and add a touch of magic to this already enchanting creation.



➡️ Click Here To Glow Up The Lego Tree House With Light Kits 

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