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Back of the Box Builds

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
    • 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

Harry Potter Sets

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

4719: Quality Quidditch Supplies

March 22, 2025March 22, 2025 Master Builder 4645 Views

Year Released: 2003BricklinkInstructions

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Harry Potter Harry Potter Sets Official Sets Small Builds Sorcerer's Stone 

4702: The Final Challenge

August 8, 2024August 8, 2024 Master Builder 4955 Views

Year Released: 2001BricklinkInstructions

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Box Plus Harry Potter Harry Potter Sets Official Sets Playscape/Play Stage Box Small Builds Sorcerer's Stone 

4723: Diagon Alley Shops

July 10, 2024October 8, 2024 Master Builder 4498 Views

Year Released: 2001BricklinkInstructions NONE 🙁

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

4720: Knockturn Alley

July 9, 2024July 9, 2024 Master Builder 4565 Views

Year Released: 2003BricklinkInstructions

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Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone 

4704: The Chamber of the Winged Keys

May 28, 2024May 28, 2024 Master Builder 4911 Views

Year Released: 2001BricklinkInstructions

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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 4712 Views

Year Released: 2002BricklinkInstructions

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

4731: Dobby’s Release

January 23, 2024January 23, 2024 Master Builder 4512 Views

Year Released: 2002BricklinkInstructions

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

4767: Harry and the Hungarian Horntail

May 16, 2023May 16, 2023 Master Builder 4524 Views

Year Released: 2005BricklinkInstructions

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

4768: The Durmstrang Ship

May 16, 2023May 16, 2023 Master Builder 5089 Views

Year Released: 2005BricklinkInstructions

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

4766: Graveyard Duel

May 16, 2023May 16, 2023 Master Builder 4449 Views

Year Released: 2005BricklinkInstructions

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Goblet of Fire Harry Potter Harry Potter Sets Medium Builds Official Sets 

4762: Rescue from the Merpeople

May 16, 2023May 16, 2023 Master Builder 4416 Views

Year Released: 2005BricklinkInstructions

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Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Small Builds 

4751: Harry and the Marauder’s Map

May 16, 2023May 16, 2023 Master Builder 4743 Views

Year Released: 2004BricklinkInstructions

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Harry Potter Harry Potter Sets Official Sets Prisoner of Azkaban Very Small Builds 

4750: Draco’s Encounter with Buckbeak

May 16, 2023May 16, 2023 Master Builder 4491 Views

Year Released: 2004BricklinkInstructions

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

4733: The Dueling Club

March 3, 2023March 3, 2023 Master Builder 5012 Views

Year Released: 2002BricklinkInstructions

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Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone 

4714: Gringott’s Bank

March 2, 2023March 2, 2023 Master Builder 4511 Views

Year Released: 2002BricklinkInstructions

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

4706: Forbidden Corridor

February 27, 2023February 27, 2023 Master Builder 4687 Views

Year Released: 2001BricklinkInstructions

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

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder 4520 Views

Year Released: 2002BricklinkInstructions

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

4726: Quidditch Practice

February 27, 2023February 27, 2023 Master Builder 4486 Views

Year Released: 2002BricklinkInstructions

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

4707: Hagrid’s Hut

December 29, 2021December 29, 2021 Master Builder 4542 Views

Year Released: 2001BricklinkInstructions

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

4708: Hogwarts Express

July 13, 2021August 8, 2024 Master Builder 5024 Views

Year Released: 2001BricklinkInstructions

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

4709: Hogwarts Castle

April 16, 2021July 13, 2021 Master Builder 5342 Views

Year Released: 2001BricklinkInstructions

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Harry Potter Harry Potter Sets Medium Builds Official Sets Sorcerer's Stone 

4705: Snape’s Class

April 16, 2021April 16, 2021 Master Builder 4778 Views

Year Released: 2001BricklinkInstructions

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EXPLORE MORE OFFICIAL SETS

6633: Family Car
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6633: Family Car

April 19, 2021April 19, 2021 Master Builder

Year Released: 1985InstructionsBricklink

6959: Lunar Launch Site
Jørn Thomsen Large Builds Official Sets Spyrius Spyrius Sets 

6959: Lunar Launch Site

April 27, 2020July 29, 2023 Master Builder
1680: Hay Cart with Smugglers
Castle Castle Sets Forestmen Official Sets Small Builds 

1680: Hay Cart with Smugglers

August 12, 2024September 24, 2024 Master Builder
6035: Castle Guard
Black Falcons Castle Castle Sets Official Sets Small Builds 

6035: Castle Guard

December 27, 2021December 27, 2021 Master Builder
1704: {Unknown – Ice Planet Satellite Plow ?}
Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town 

1704: {Unknown – Ice Planet Satellite Plow ?}

September 6, 2023September 7, 2023 Master Builder
6541: Intercoastal Seaport
ABCs Classic Town Extra Large Builds Harbor Official Sets Town Town Sets Wrecker 

6541: Intercoastal Seaport

January 25, 2022February 12, 2025 Master Builder
5581: Magic Flash
Extra Large Builds Model Team Model Team Sets Official Sets 

5581: Magic Flash

January 2, 2024January 2, 2024 Master Builder
6542: Launch & Load Seaport
Classic Town Extra Large Builds Harbor Official Sets Town Town Sets Wrecker 

6542: Launch & Load Seaport

August 1, 2022August 1, 2022 Master Builder
6949: Robo-Guardian
ABCs Large Builds Official Sets Space Spyrius Spyrius Sets 

6949: Robo-Guardian

October 23, 2019August 15, 2023 Master Builder
6495: Time Tunnelator
Official Sets Small Builds Time Cruisers Time Cruisers Sets 

6495: Time Tunnelator

July 14, 2021July 14, 2021 Master Builder
6251: Pirate Mini Figures (Sea Mates)
Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

6251: Pirate Mini Figures (Sea Mates)

April 9, 2020April 9, 2020 Master Builder
1632: Motor Boat
Classic Town Harbor Official Sets Town Town Sets Very Small Builds Wrecker 

1632: Motor Boat

July 25, 2024July 25, 2024 Master Builder
6370: Weekend Home
Building Classic Town Medium Builds Official Sets Town Town Sets 

6370: Weekend Home

February 17, 2023February 19, 2023 Master Builder
6660: Hook and Haul Wrecker
Classic Town Off-Road Official Sets Small Builds Town Town Sets 

6660: Hook and Haul Wrecker

June 23, 2025June 23, 2025 Master Builder
6110: Solo Sub
Aquazone Aquazone Sets Hydronauts Official Sets Small Builds 

6110: Solo Sub

February 13, 2025February 13, 2025 Master Builder
6135: Spy Shark
Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds 

6135: Spy Shark

March 21, 2023March 21, 2023 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
  • 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.