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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 4089 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 4422 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 4012 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 4052 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 4409 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 4191 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 3976 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 3994 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 4538 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 3937 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 3923 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 4194 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 3937 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 4438 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 4024 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 4154 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 3988 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 3930 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 4005 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 4483 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 4729 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 4318 Views

Year Released: 2001BricklinkInstructions

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EXPLORE MORE OFFICIAL SETS

6806: Surface Hopper
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6806: Surface Hopper

April 16, 2021April 16, 2021 Master Builder

Year Released: 1985BricklinkInstructions

775: Fire Fighter Ship
Boat Fire Medium Builds Official Sets 

775: Fire Fighter Ship

July 22, 2024July 22, 2024 Master Builder
6803: Space Patrol
Classic Space Classic Space Sets Official Sets Very Small Builds 

6803: Space Patrol

September 21, 2019October 19, 2019 Master Builder
6160: Sea Scorpion
Aquazone Aquazone Sets Large Builds Official Sets Stingrays 

6160: Sea Scorpion

October 29, 2019April 4, 2020 Master Builder
1785: Introducing Crater Critters
Official Sets Small Builds Space Spyrius Spyrius Sets Unitron Unitron Sets 

1785: Introducing Crater Critters

December 28, 2021December 28, 2021 Master Builder
1590-2: ANWB Breakdown Assistance
Classic Town Large Builds Official Sets Town Town Sets Traffic 

1590-2: ANWB Breakdown Assistance

October 22, 2021October 22, 2021 Master Builder
6543: Sail N’ Fly Marina
Classic Town Extra Large Builds Harbor Official Sets Town Town Sets Wrecker 

6543: Sail N’ Fly Marina

July 22, 2022July 22, 2022 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
6949: Robo-Guardian
ABCs Large Builds Official Sets Space Spyrius Spyrius Sets 

6949: Robo-Guardian

October 23, 2019August 15, 2023 Master Builder
6247: Bounty Boat
Imperial Guards Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

6247: Bounty Boat

May 10, 2022May 10, 2022 Master Builder
6334: Wave Jump Racers
Classic Town Medium Builds Official Sets Race Town Town Sets 

6334: Wave Jump Racers

June 27, 2022June 27, 2022 Master Builder
7303 (1415, Kabaya: Life On Mars 3): Jet Scooter
Life on Mars Life on Mars Sets Official Sets Very Small Builds 

7303 (1415, Kabaya: Life On Mars 3): Jet Scooter

February 25, 2025February 25, 2025 Master Builder
6431: Road Rescue
Official Sets Res-Q Small Builds Town Town Sets 

6431: Road Rescue

January 20, 2022January 20, 2022 Master Builder
6842: Shuttle Craft
Classic Space Classic Space Sets Official Sets Small Builds 

6842: Shuttle Craft

October 21, 2019October 21, 2019 Master Builder
6718: Raindance Ridge (Rain Dance Ridge)
Indians Jørn Thomsen Official Sets Small Builds Western Western Sets 

6718: Raindance Ridge (Rain Dance Ridge)

August 4, 2020July 29, 2023 Master Builder
1730: Snow Scooter
Classic Town Off-Road Official Sets Town Town Sets Very Small Builds 

1730: Snow Scooter

April 11, 2023April 11, 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.