Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
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- BIONICLE
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THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Model Team Alternate Builds

5540 – Back A

February 10, 2026March 4, 2026 Master Builder 3897 Views

From: 5540: Formula I RacerName: TBD Instructions: View PDF | Download .io File

Alternate Builds Instructions Added Large Alt Build Large Builds Model Team Model Team Alternate Builds

5510 – Back A

February 10, 2026March 4, 2026 Master Builder 3800 Views

From: 5510: Off Road 4×4Name: TBD Instructions: View PDF | Download .io File

Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added Model Team Model Team Alternate Builds

5580 – Back A

February 9, 2026March 4, 2026 Master Builder 4441 Views

From: 5580: Highway RigName: TBD Instructions: View PDF | Download .io File

Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added Model Team Model Team Alternate Builds

5550 – Back A

February 9, 2026March 4, 2026 Master Builder 4372 Views

From: 5550: Custom Rally VanName: TBD Instructions: View PDF | Download .io File

Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added Model Team Model Team Alternate Builds

5581 – Back A

January 31, 2026March 4, 2026 Master Builder 4514 Views

From: 5581: Magic FlashName: TBD Instructions: View PDF | Download .io File

Alternate Builds Instructions Added Large Alt Build Large Builds Model Team Model Team Alternate Builds

5521 – Back A

January 29, 2026March 4, 2026 Master Builder 3900 Views

From: 5521: Sea JetName: TBD Instructions: View PDF | Download .io File

Castle Castle Sets Extra Large Builds Niels Milan Pedersen Official Sets Royal Knights

6090: Royal Knight’s Castle

July 13, 2021July 29, 2023 Master Builder

Year Released: 1995Designer: Niels Milan PedersenBricklinkInstructions

Chamber of Secrets Harry Potter Harry Potter Sets Medium Builds Official Sets

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About This Site

There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

Adventurers
Aquazone
BATMAN
Bionicle
Belville
Building Set with People
Castle
Duplo
Fabuland
Harry Potter
Holiday and Event
LEGOLAND
Model Team
Pirates
Space
Star Wars
Technic
Town
Universal Building Set
Western
More Sets
Misc

In Honor of 1526

The classic space set that never was.