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

Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Instructions Added Very Small Alt Build Very Small Builds

4720 – Back B

June 14, 2026June 23, 2026 Master Builder 4214 Views

From: 4720: Knockturn Alley
Name: Desk ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on June 14, 2026 by: penumbra12

← 4720 – Back A
6900 – Back A →

You May Also Like

6251: Pirate Mini Figures (Sea Mates)

April 9, 2020April 9, 2020 Master Builder

6561 – Back D

November 10, 2019June 3, 2026 Master Builder

4730 – Back B

January 23, 2024 Master Builder

6750 – Back B

September 22, 2019September 28, 2019 Master Builder

1627: Santa Polybag

May 2, 2023May 2, 2023 Master Builder

6675 – Back D

March 20, 2023March 22, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Classic Space Classic Space Sets Official Sets Space Supplemental

305: Two Crater Plates

March 6, 2026March 6, 2026 Master Builder

Year Released: 1979Bricklink

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6234: Renegade’s Raft

May 23, 2022May 23, 2022 Master Builder

Black Falcons Castle Castle Sets Daniel August Krentz Large Builds Official Sets

6074: Black Falcon’s Fortress

October 14, 2021July 29, 2023 Master Builder

Official Sets Small Builds Star Wars Star Wars Sets

7124: Flash Speeder

November 15, 2019November 15, 2019 Master Builder

Classic Town Fire Large Builds Official Sets Town Town Sets

6385: Fire House-I

August 7, 2022August 7, 2022 Master Builder

Episode II Large Builds Official Sets Star Wars Star Wars Sets

7153: Jango Fett’s Slave I

May 10, 2022May 10, 2022 Master Builder

Classic Town Medium Builds Official Sets Town Town Sets Traffic

6369: Garage

December 1, 2023December 2, 2023 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6359: Horse Trailer

October 8, 2024October 8, 2024 Master Builder

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

Kabaya: Alpha Team 2

September 9, 2024September 9, 2024 Master Builder

Exo-Force Official Sets Small Builds

7711: Sentry

August 11, 2023August 11, 2023 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6235: Buried Treasure

May 23, 2022May 23, 2022 Master Builder

Classic Town Extra Large Builds Gas Station Official Sets Town Town Sets Wrecker

6378: Service Station

February 25, 2023February 26, 2023 Master Builder

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

7785: Arkham Asylum

March 30, 2026March 30, 2026 Master Builder

Medium Builds Official Sets Res-Q Town Town Sets

6462: Res-Q Helicopter

July 10, 2026July 10, 2026 Master Builder

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

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder

Large Builds Model Team Model Team Sets Official Sets

5540: Formula I Racer

February 10, 2026March 4, 2026 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.