Yes, you can build a family tree with LEGO bricks, and while LEGO has never released an official “family tree” set, the concept has become a popular custom project among adult fans of LEGO (AFOLs) and genealogy enthusiasts. The idea is simple: use standard LEGO bricks and minifigures to create a physical, three-dimensional chart of your ancestry, with each brick or figure representing a person, and connections shown through the interlocking studs. This article explores how to build one, what you need, and why it’s a surprisingly effective way to visualize family history.
Why Build a Family Tree Out of LEGO?
A LEGO family tree turns a flat, often abstract pedigree chart into a tangible, interactive object. Unlike a paper chart or a digital tree on Ancestry.com, a LEGO version can be touched, rearranged, and expanded. It’s particularly appealing for families with children, as it makes genealogy tangible and fun. For adults, it offers a creative, hands-on way to engage with family history, and it can serve as a unique conversation piece at reunions. The modular nature of LEGO means you can add new generations, spouses, and even pets without starting over—just click on another brick.
How a LEGO Family Tree Works
There is no single official method, but the most common approach uses a baseplate (a flat LEGO board) as the canvas, and minifigures or stacked bricks to represent individuals. Here’s a typical setup:
- Baseplate: A large green or gray baseplate (e.g., 32×32 studs) serves as the ground. You can draw or place printed tiles to label generations.
- Minifigures: Each person is a minifigure. You can customize them with different heads, hair, and torsos to resemble relatives. For ancestors without known photos, you can use generic figures.
- Connections: A standard 2×2 brick or a small plate can be placed between two minifigures to represent a marriage or partnership. For parent-child links, you might use a 1×2 brick or a chain of plates to show the line descending.
- Labels: Use 1×2 or 1×4 tiles with printed names or write on blank tiles with a permanent marker (though this is not erasable). Alternatively, you can place a small printed tile next to each figure.
Some builders prefer a more abstract tree: instead of minifigures, they use colored bricks—one color per family line, with the number of studs indicating generation. This is cheaper and easier to modify.
Choosing the Right LEGO Pieces
You don’t need a specific set. Most builders use pieces they already own. However, if you’re starting from scratch, consider these components:
- Baseplates: A 32×32 or 48×48 stud baseplate gives plenty of room. You can also use multiple baseplates to create a larger tree.
- Minifigures: You can buy loose minifigures from online marketplaces like BrickLink or LEGO’s Pick a Brick. For a large tree, this can get expensive, so many people use only a few key figures and use bricks for the rest.
- Bricks and Plates: Standard 2×4, 2×2, and 1×2 bricks are useful for building trunks and branches. Plates (thin bricks) are good for flat connections.
- Tiles: Tiles with printed names are rare, but you can use blank tiles and a fine-tip permanent marker. Alternatively, you can use a label maker to create small stickers.
If you want a more polished look, you can order custom printed tiles from LEGO’s Bricks & Pieces service (in some regions) or from third-party sellers, though these are unofficial.
Step-by-Step: Building Your Own
Here’s a practical guide for a basic three-generation tree:
- Plan your tree: On paper, sketch your direct ancestors (parents, grandparents, great-grandparents) and decide how far back you want to go. A 32×32 baseplate can comfortably fit about 15 minifigures with labels.
- Sort your pieces: Gather minifigures for each person, or assign a brick color to each family line (e.g., blue for paternal, red for maternal).
- Place the oldest generation at the top: Start with your great-grandparents. Place them on the baseplate, leaving space for their children below.
- Add children: For each couple, place their children on a lower row, connecting them with a vertical stack of bricks. For example, a 1×2 brick under each parent can meet at a central point.
- Label each figure: Place a 1×1 tile with a name next to each minifigure. If you don’t have printed tiles, write on blank ones with a fine-point Sharpie (test first—it may smudge).
- Expand as needed: You can always add more baseplates or rebuild as you research further back.
This is a flexible process; the key is to make it your own.
Common Problems and Misconceptions
One common misconception is that LEGO sells a specific “Family Tree” set. They do not—as of 2025, no such official set exists. The idea is entirely fan-made. Another issue is cost: minifigures can cost $3–$10 each, so a tree with 50 people can get pricey. A cheaper alternative is to use only heads or small bricks to represent people. Another problem is size: a large tree quickly outgrows a single baseplate. Solution: build it in sections, such as one baseplate per grandparent line, and connect them when displayed. Also, be aware that permanent markers on LEGO can be removed with rubbing alcohol, but it’s messy; better to use printed tiles or small stands with paper labels.
Comparing LEGO Trees to Other Family Tree Formats
LEGO trees are not the only creative option. You might compare them to:
- Paper charts: Traditional pedigree charts are cheap and can hold thousands of names, but they are static and fragile.
- Digital trees: Websites like Ancestry or FamilySearch offer unlimited space and easy sharing, but they lack a physical presence.
- Wooden or metal trees: Some crafters make engraved plaques, but these are expensive and difficult to update.
- LEGO trees: They are interactive, customizable, and child-friendly, but limited by physical space and cost per person.
For a family with young kids, LEGO is often the most engaging option because children can play with the figures and learn names.
Costs and Where to Get Pieces
The cost varies widely. If you already have LEGO, you might spend $0. If you need to buy everything, a basic tree with 10 minifigures could cost $50–$100 (minifigures at ~$5 each, plus a baseplate and bricks). You can reduce costs by using generic minifigures from bulk lots on eBay or BrickLink. LEGO’s official Pick a Brick online service sells individual pieces, but shipping can be high. For rare pieces, BrickLink is the best marketplace, with thousands of sellers worldwide. Always check the condition of used pieces—they should be clean and free of cracks.
Safety and Handling Tips
LEGO is generally safe, but there are a few things to keep in mind:
- Choking hazard: Small pieces like 1×1 tiles and minifigure accessories are a choking hazard for children under 3. Keep your tree out of reach of toddlers.
- Sharp edges: While LEGO is smooth, broken or damaged pieces can have sharp edges. Inspect used pieces.
- Cleaning: To clean your tree, dust with a soft brush. Do not use water on assembled parts—it can damage stickers or paper labels. If you must wash, disassemble and use mild soap, then air dry completely.
If you use permanent markers, do so in a well-ventilated area, and note that the ink may fade over time.
Alternatives and Inspirations
If you like the idea but want a different medium, consider:
- LEGO-compatible bricks: Off-brand bricks (like Mega Bloks) are cheaper but may not fit perfectly.
- 3D-printed trees: You can design a custom tree and print it, but it’s less interactive.
- Felt or fabric trees: For a softer, child-safe version, use felt with Velcro figures.
- Digital LEGO builders: Use software like Stud.io to design a virtual LEGO tree before buying pieces.
Many AFOLs share their designs on Reddit’s r/lego or Flickr, so search for “LEGO family tree” for inspiration.
Frequently Asked Questions
Is there an official LEGO family tree set? No, LEGO has never released a set specifically for building a family tree. The concept is entirely fan-created, using standard bricks and minifigures.
How many generations can I fit on one baseplate? On a 32×32 stud baseplate (about 10×10 inches), you can fit roughly 3–4 generations with 2–4 people per generation, depending on how much space you leave for labels and connections. For more, use multiple baseplates.
Can I write on LEGO bricks to label people? Yes, but use a fine-tip permanent marker on blank tiles. The ink can be removed with rubbing alcohol, but it may leave a residue. For a cleaner look, use printed tiles or small paper labels placed under a transparent brick.
What is the cheapest way to build a LEGO family tree? Use bricks instead of minifigures—for example, a 2×2 brick for each person, with a 1×1 tile on top for the name. You can buy used bricks in bulk on BrickLink for as little as $0.02 per piece.
Can I include pets or non-blood relatives? Absolutely. Use animal figures (like cats or dogs) for pets, and any minifigure for adopted or step-family members. The tree is yours to define.
How do I store a LEGO family tree? Disassemble it carefully and store pieces in labeled zip-lock bags. Alternatively, keep it assembled on a shelf, but avoid direct sunlight to prevent fading.
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