The LEGO sets that unlock the most builds
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If you're buying one set to get the most out of Build Again, buy a classic brick box or a Creator 3-in-1. Those two families are what our designers build from most, because they're full of ordinary bricks in ordinary colours, which is exactly what a new model needs. A licensed set with lots of special pieces makes one wonderful model and not much else.
Here are the sets in our library that open the most builds today, with the number of Build Again builds each one unlocks. The library grows every week, and these counts only go up. As of 7 November 2026, 237 builds are live.
| Set | Pieces | Builds it unlocks | Why it works | |
|---|---|---|---|---|
| Red Dragon (31145) | 149 | 7 | Red and gold pieces that suit vehicles and castles as much as dragons | Amazon → |
| Wild Animals: Surprising Spider (31159) | 153 | 6 | Lots of small hinges and joints, so builds can move | Amazon → |
| Dodge Challenger SRT Hellcat Sports Car (77237) | 390 | 6 | Ordinary bricks in useful colours; several of our designers have built from it | Amazon → |
| Medium Creative Brick Box (10696) | 484 | 6 | The all-rounder. Plain bricks, plates and wheels in every colour: our designers keep coming back to it | Amazon → |
| Aircraft: Race Plane (31160) | 178 | 5 | Small and inexpensive, but the wing plates and slopes turn into cars, boats and animals | Amazon → |
| Creative Food Friends (11039) | 150 | 4 | A good first set for a 5-year-old: chunky, cheerful pieces | Amazon → |
| Cute Hamster with a Flower (31376) | 166 | 4 | Ordinary bricks in useful colours; several of our designers have built from it | Amazon → |
| Mighty Dinosaurs (31058) | 174 | 4 | A LEGO classic, often already in the cupboard | Amazon → |
| Wild Animals: Tropical Toucan (31173) | 225 | 4 | Bright colours and curved pieces; our animal designers love it | Amazon → |
| McLaren F1 Team MCL38 Race Car (77251) | 269 | 4 | Ordinary bricks in useful colours; several of our designers have built from it | Amazon → |
A few things to keep in mind
- Check the cupboard first. Add the sets you already own to your shelf in Build Again before buying anything; the "Grow the library" section then tells you, for your family, which one set would open the most new builds. That answer is usually better than any list, because it counts the pieces you already have.
- Two small sets beat one big one for a young builder. A 150-piece set with 4 builds gives four evenings; a 1,500-piece set with 1 build gives one long weekend and a lot of sorting.
- The number on the box matters. Our builds are matched to the exact set number, so 31058 counts and a similar-looking box may not. The number is on the front of the box, bottom corner.
Where to buy: Amazon · LEGO.com.
LEGO is a trademark of the LEGO Group, which does not sponsor, authorise or endorse Build Again. Prices and availability belong to the shops. Build Again recommends sets only by how many builds they unlock, never by what we earn.