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 3314 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

6589 – Extra A

February 27, 2023February 27, 2023 Master Builder

6894 – Back B

January 13, 2022January 14, 2022 Master Builder

4704 – Back B

May 28, 2024May 30, 2024 Master Builder

6267 – Back D

October 11, 2021August 1, 2023 Master Builder

6286 – Back A

February 8, 2022February 8, 2022 Master Builder

6256 – Back A

June 6, 2022June 6, 2022 Master Builder

EXPLORE MORE OFFICIAL SETS

Bonus/Value Pack Sets Bonus/Value Packs Official Sets Race Small Builds Town

1509: Town Value Pack

October 8, 2024October 8, 2024 Master Builder

Year Released: 1987BricklinkContains Sets: 1496: Rally Car and 1497: Rally and Pitcrew Team

Castle Castle Sets Lion Knights Official Sets Very Small Builds

6021: Jousting Knights

September 25, 2024September 25, 2024 Master Builder

Exploriens Exploriens Sets Large Builds Official Sets

6958: Android Base

November 9, 2019April 16, 2021 Master Builder

Airport Medium Builds Official Sets Town Town Sets World City

4032: Passenger Plane

December 29, 2021December 29, 2021 Master Builder

Official Sets Racers Radio Control Small Builds

8369: Dirt Crusher RC (Yellow)

November 13, 2024November 13, 2024 Master Builder

Imperial Armada Official Sets Pirates Pirates Sets Small Builds

6244: Armada Sentry

November 16, 2019April 4, 2020 Master Builder

Holiday and Event Holiday and Event Sets Official Sets Small Builds

1978: Build-A-Santa Polybag

April 28, 2023April 28, 2023 Master Builder

Box Story Large Builds Official Sets Pirates Pirates I Pirates Sets

6273: Rock Island Refuge

July 4, 2024July 4, 2024 Master Builder

Box Story Imperial Guards Large Builds Official Sets Pirates Pirates I Pirates Sets

6271: Imperial Flagship

January 6, 2022February 20, 2025 Master Builder

Classic Town Large Builds Official Sets Recreation Town Town Sets

6563: Gator Landing

July 20, 2022July 20, 2022 Master Builder

Divers Official Sets Small Builds Town Town Sets

6556: Scuba Squad

June 28, 2022June 28, 2022 Master Builder

Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Medium Builds Official Sets Space

6898: Ice-Sat V

June 8, 2020July 29, 2023 Master Builder

Classic Town Official Sets Town Town Sets Traffic Very Small Builds

6501: Sport Convertible

July 8, 2022July 8, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6803: Space Patrol

September 21, 2019October 19, 2019 Master Builder

Exploriens Exploriens Sets Extra Large Builds Official Sets

6982: Explorien Starship

November 9, 2019December 13, 2024 Master Builder

Bonus/Value Pack Sets Futron Sets Futuron Jørn Thomsen Official Sets Small Builds Space

1621: Lunar MPV Vehicle

September 6, 2023September 7, 2023 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.