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

Chamber of Secrets Extra Large Builds Harry Potter Harry Potter Sets Official Sets

4730: The Chamber of Secrets

January 23, 2024January 23, 2024 Master Builder 4866 Views

Year Released: 2002
Bricklink
Instructions

Back A

Back A

← M:Tron Prototypes
4730 – Back A →

You May Also Like

6510: Mud Runner

May 8, 2022May 8, 2022 Master Builder

7127: Imperial AT-ST

December 29, 2021December 29, 2021 Master Builder

6698: RV with Speedboat

June 28, 2022June 28, 2022 Master Builder

6790: Bandit’s Wheelgun

October 10, 2023October 10, 2023 Master Builder

375-2 (6075-2): Castle

November 8, 2019September 5, 2025 Master Builder

891: Two-Man Scooter

March 15, 2024March 15, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Building Classic Town Medium Builds Official Sets Town Town Sets

6360: Weekend Cottage

October 19, 2019April 4, 2020 Master Builder

Year Released: 1986Bricklink

ABCs Official Sets Small Builds Space UFO UFO Sets

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder

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

7110: Landspeeder

June 21, 2022March 1, 2023 Master Builder

Box Plus Classic Space Classic Space Sets Jens Nygaard Knudsen LL Link Official Sets Playscape/Play Stage Box Small Builds Space

918: Space Transport

April 27, 2020October 21, 2024 Master Builder

Cowboys Official Sets Very Small Builds Western Western Sets

6706: Frontier Patrol

October 10, 2023October 10, 2023 Master Builder

Castle Castle Sets Official Sets Royal Knights Very Small Builds

1752: Boat with Armor

April 10, 2023April 10, 2023 Master Builder

Episode I Official Sets Star Wars Star Wars Sets Very Small Builds

7203: Jedi Defense I

June 27, 2022June 27, 2022 Master Builder

Fabuland Fabuland Sets Official Sets Very Small Builds

3721: Clive Crocodile on Skateboard

February 26, 2023August 1, 2023 Master Builder

Extra Large Builds Harry Potter Harry Potter Sets Official Sets Sorcerer's Stone

4709: Hogwarts Castle

April 16, 2021July 13, 2021 Master Builder

Designer Sets Designer Sets Alternate Builds Designer Sets Set Medium Builds Official Sets

4883: Gear Grinders

August 2, 2021August 2, 2021 Master Builder

Large Builds Official Sets Star Wars Star Wars Sets

7140: X-wing Fighter

November 10, 2019April 17, 2020 Master Builder

ABCs Classic Space Classic Space Sets Large Builds Official Sets

6952: Solar Power Transporter

September 22, 2019March 20, 2025 Master Builder

Black Knights Castle Castle Sets Official Sets Small Builds

1491: Dual Defender

October 11, 2021October 11, 2021 Master Builder

Classic Town Harbor Official Sets Small Builds Town Town Sets Wrecker

6663: Wave Rebel

June 6, 2022June 6, 2022 Master Builder

Aquazone Aquazone Sets Box Story Hydronauts Large Builds Official Sets

6180: Hydro Search Sub

February 18, 2025February 18, 2025 Master Builder

Classic Town Medium Builds Official Sets Police Town Town Sets

6354: Pursuit Squad

February 9, 2022February 9, 2022 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 © 2025 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.