Skip to content
Back of the Box Builds

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
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Small Builds 

4730 – Back C

January 23, 2024 Master Builder 4392 Views

From: 4730: The Chamber of Secrets
Name: TBD
Submitted by: USER
Instructions:

  • ← 4730 – Back B
  • 6953 – Back C →

You May Also Like

6769 – Back E

November 10, 2019November 10, 2019 Master Builder

1858 – Back B

July 8, 2022July 11, 2022 Master Builder

6264 – Back B

August 31, 2022September 16, 2022 Master Builder

6939 – Back D

November 9, 2019August 15, 2023 Master Builder

6479 – Back B

April 16, 2021April 16, 2021 Master Builder

1680 – Back C

August 12, 2024September 24, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

6160: Sea Scorpion
Aquazone Aquazone Sets Large Builds Official Sets Stingrays 

6160: Sea Scorpion

October 29, 2019April 4, 2020 Master Builder

Year Released: 1998Bricklink

6712: Sheriff’s Showdown
Cowboys Official Sets Very Small Builds Western Western Sets 

6712: Sheriff’s Showdown

October 10, 2023October 10, 2023 Master Builder
1687: Midnight Transport
Airport Classic Town Large Builds Official Sets Town Town Sets 

1687: Midnight Transport

January 25, 2022January 25, 2022 Master Builder
1728 (6145): Crystal Crawler {with Aqua Playscape}
ABCs Aquanauts Aquazone Aquazone Sets Box Plus Official Sets Playscape/Play Stage Box Small Builds 

1728 (6145): Crystal Crawler {with Aqua Playscape}

August 1, 2023March 22, 2025 Master Builder
1966: Car Repair Shop
Classic Town Large Builds Official Sets Town Town Sets Traffic 

1966: Car Repair Shop

May 16, 2025May 16, 2025 Master Builder
607: Mini Loader
Classic Town Construction Official Sets Town Town Sets Very Small Builds 

607: Mini Loader

October 19, 2019April 4, 2020 Master Builder
6848: Interplanetary Shuttle
Classic Space Classic Space Sets Duplicate Set Number Official Sets Small Builds Space 

6848: Interplanetary Shuttle

March 11, 2024March 11, 2024 Master Builder
6508: Wave Racer
Official Sets Race Town Town Sets Very Small Builds 

6508: Wave Racer

October 23, 2026October 23, 2026 Master Builder
3442: Legoland California Truck Limited Edition
Classic Town Official Sets Small Builds Town Town Sets Traffic 

3442: Legoland California Truck Limited Edition

October 13, 2021October 13, 2021 Master Builder
920 (483): Alpha-1 Rocket Base
Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space 

920 (483): Alpha-1 Rocket Base

February 2, 2021July 31, 2023 Master Builder
5521: Sea Jet
Large Builds Model Team Model Team Sets Official Sets 

5521: Sea Jet

January 12, 2021January 31, 2026 Master Builder
6369: Garage
Classic Town Medium Builds Official Sets Town Town Sets Traffic 

6369: Garage

December 1, 2023December 2, 2023 Master Builder
1978-2: Town Value Pack
Bonus/Value Pack Sets Bonus/Value Packs Official Sets Race Small Builds Town 

1978-2: Town Value Pack

October 10, 2024October 10, 2024 Master Builder
2333: Animal
Basic Set Duplo Duplo Sets Official Sets Very Small Builds 

2333: Animal

May 16, 2023May 16, 2023 Master Builder
6480: Hook and Ladder Truck
Classic Town Fire Medium Builds Official Sets Town Town Sets 

6480: Hook and Ladder Truck

July 8, 2022July 8, 2022 Master Builder
6901-2: Space Plane
Duplicate Set Number Official Sets UFO UFO Sets Very Small Builds 

6901-2: Space Plane

December 16, 2025December 16, 2025 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
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.