Skip to content

Back of the Box Builds

LEGO Alternate Builds!

SETS
- Adventurers
- Aquazone
- Belville
- BATMAN™
- BIONICLE
- Building Set with People
- Castle
- Duplo
- Fabuland
- Harry Potter
- Holiday and Event
- LEGOLAND
- Model Team
- Pirates
- Space
- Star Wars
- Technic
- Train
- Town
- Universal Building Set
- Western
- More Sets
- Misc
USEFUL LINKS
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

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

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder 5556 Views

Year Released: 2002
Bricklink
Instructions

← 4726 – Back B
6746: Chief’s Tepee →

You May Also Like

4751: Harry and the Marauder’s Map

May 16, 2023May 16, 2023 Master Builder

6841: Mineral Detector

October 3, 2019October 3, 2019 Master Builder

6818 – Back A

August 4, 2023August 6, 2023 Master Builder

6465 – Back B

March 3, 2025March 3, 2025 Master Builder

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

6667 – Back A

February 10, 2022March 17, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Town Official Sets Police Small Builds Town Town Sets

6681: Police Van

October 13, 2021October 13, 2021 Master Builder

Year Released: 1981BricklinkInstructions

Batman I BATMAN™ BATMAN™ Sets Medium Builds Official Sets

7780: The Batboat: Hunt for Killer Croc

March 27, 2026March 27, 2026 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1549: Santa and Chimney

February 27, 2023March 5, 2026 Master Builder

Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

Classic Space Classic Space Sets Large Builds Official Sets

6929: Starfleet Voyager

September 22, 2019April 3, 2023 Master Builder

Indians Official Sets Very Small Builds Western Western Sets

2846: Indian Kayak

October 10, 2023October 10, 2023 Master Builder

Classic Town Official Sets Police Town Town Sets Very Small Builds

6623: Police Car

October 13, 2021October 13, 2021 Master Builder

Batman I BATMAN™ BATMAN™ Sets Extra Large Builds Official Sets

7783: The Batcave: The Penguin and Mr. Freeze’s Invasion

March 27, 2026March 27, 2026 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6823: Surface Transport

September 30, 2019September 30, 2019 Master Builder

Classic Town Fire Official Sets Town Town Sets Very Small Builds

6511: Rescue Runabout

May 10, 2022May 10, 2022 Master Builder

Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets

7127: Imperial AT-ST

December 29, 2021December 29, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Small Builds Space

1526: Unknown (Space Radar Buggy)

August 20, 2025August 29, 2025 Master Builder

Bjarne Tveskov Official Sets Space Space Police I Space Police I Sets Very Small Builds

6831: Message Decoder

May 3, 2020July 29, 2023 Master Builder

Classic Town Construction Official Sets Small Builds Town Town Sets

6662: Backhoe

July 8, 2022July 8, 2022 Master Builder

Official Sets Small Builds Studio Sets Studios

1380: Werewolf Ambush

December 16, 2025December 16, 2025 Master Builder

Alpha Team Alpha Team Sets Mission Deep Sea Official Sets Very Small Builds

Kabaya: Alpha Team 3

September 9, 2024September 9, 2024 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

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
Train
Town
Universal Building Set
Western
More Sets
Misc

Useful Links

Submit Instructions!
New Instructions
New Official Sets
New Alternate Builds
Minifigs
Very Small Builds (<35 pcs)
Small Builds (<100 pcs)
Medium Builds (<200 pcs)
Large Builds (<400 pcs)
Extra Large Builds (>400 pcs)
How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.