Skip to content

Back of the Box Builds

LEGO Alternate Builds!

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

Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Instructions Added Small Builds

4735 – Back A

June 12, 2024June 17, 2024 Master Builder 3297 Views

From: 4735: Slytherin
Name: Slytherin Secrets ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on June 12, 2024 by: penumbra12

← 4709 – Back C
4735 – Back B →

You May Also Like

6246: Crocodile Cage

January 26, 2022January 26, 2022 Master Builder

1632 – Back A

July 25, 2024July 25, 2024 Master Builder

7101 – Back A

October 28, 2021October 28, 2021 Master Builder

710 – Inside D

February 22, 2024February 22, 2024 Master Builder

6970 – Back H

June 8, 2022June 29, 2022 Master Builder

6080 – Back B

October 5, 2019October 5, 2019 Master Builder

EXPLORE MORE OFFICIAL SETS

ABCs Aquanauts Aquazone Aquazone Sets Extra Large Builds Jørn Thomsen Official Sets

6195: Neptune Discovery Lab (Aqua Dome 7)

January 20, 2022February 11, 2025 Master Builder

Year Released: 1995Designer: Jørn ThomsenBricklinkInstructions *Alternate Build Connection: Aquadome

Blacktron II Blacktron II Sets Official Sets Very Small Builds

6832: Super Nova II

October 5, 2019October 5, 2019 Master Builder

ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space

6892: Modular Space Transport

November 17, 2021July 31, 2023 Master Builder

Extra Large Builds Goblet of Fire Harry Potter Harry Potter Sets Official Sets

4768: The Durmstrang Ship

May 16, 2023May 16, 2023 Master Builder

M:Tron M:Tron Sets Official Sets Space Very Small Builds

6811: Pulsar Charger

April 17, 2020April 17, 2020 Master Builder

Jørn Thomsen Medium Builds Official Sets Space Space Police I Space Police I Sets

6895: Spy-Trak I

April 8, 2020September 12, 2024 Master Builder

Classic Town Official Sets Recreation Town Town Sets Very Small Builds

6534: Beach Bandit

July 8, 2022July 8, 2022 Master Builder

Classic Town Medium Builds Official Sets Race Town Town Sets

6334: Wave Jump Racers

June 27, 2022June 27, 2022 Master Builder

Exploriens Exploriens Sets Medium Builds Official Sets Space

6899: Nebula Outpost

January 25, 2022September 13, 2024 Master Builder

ABCs M:Tron M:Tron Sets Medium Builds Official Sets

6923: Particle Ionizer

October 1, 2019August 13, 2023 Master Builder

Classic Town Extra Large Builds Official Sets Police Town Town Sets

6598: Metro PD Station

January 6, 2022January 6, 2022 Master Builder

Classic Town Large Builds Official Sets Recreation Town Town Sets

6552: Rocky River Retreat

July 15, 2022July 15, 2022 Master Builder

Classic Space Classic Space Sets Extra Large Builds Official Sets Space

6980: Galaxy Commander

July 21, 2021July 21, 2021 Master Builder

Airport Classic Town Official Sets Town Town Sets Very Small Builds

6515: Stunt Copter

February 2, 2022February 2, 2022 Master Builder

Classic Town Large Builds Official Sets Police Town Town Sets

6384: Police Station

December 28, 2021December 28, 2021 Master Builder

Fire Official Sets Small Builds Town Town Sets World City

7043: Firefighter

January 22, 2024January 22, 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
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

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.