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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 Alternate Builds

Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Small Builds 

4719 – Back A

March 22, 2025March 22, 2025 Master Builder 2353 Views

From: 4719: Quality Quidditch SuppliesName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Small Alt Build Small Builds Sorcerer's Stone 

4702 – Back B

August 8, 2024August 8, 2024 Master Builder 2516 Views

From: 4702: The Final ChallengeName: Telescope Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Small Alt Build Small Builds Sorcerer's Stone 

4702 – Back A

August 8, 2024August 8, 2024 Master Builder 2480 Views

From: 4702: The Final ChallengeName: Catapult Practice Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Small Alt Build Small Builds Sorcerer's Stone 

4708 – Instructions A

August 1, 2024August 8, 2024 Master Builder 2602 Views

From: 4708: Hogwarts ExpressName: Wizard Car Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Large Alt Build Large Builds Sorcerer's Stone 

4708 – Back B

August 1, 2024August 8, 2024 Master Builder 2734 Views

From: 4708: Hogwarts ExpressName: Hogwarts Cargo Hauler Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Large Alt Build Large Builds Sorcerer's Stone 

4708 – Back C

August 1, 2024August 8, 2024 Master Builder 2627 Views

From: 4708: Hogwarts ExpressName: Potion Alley Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Large Alt Build Large Builds Sorcerer's Stone 

4708 – Back A

August 1, 2024August 8, 2024 Master Builder 2449 Views

From: 4708: Hogwarts ExpressName: Little Engine Instructions: View PDF | Download .io File

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Very Small Builds 

4720 – Back C

July 9, 2024July 9, 2024 Master Builder 2286 Views

From: 4720: Knockturn AlleyName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Medium Builds 

4720 – Back B

July 9, 2024July 9, 2024 Master Builder 2424 Views

From: 4720: Knockturn AlleyName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Medium Builds 

4720 – Back A

July 9, 2024July 9, 2024 Master Builder 2331 Views

From: 4720: Knockturn AlleyName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4706 – Back B

June 12, 2024June 17, 2024 Master Builder 2531 Views

From: 4706: Forbidden CorridorName: Bridge Trap Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4706 – Back C

June 12, 2024June 17, 2024 Master Builder 2545 Views

From: 4706: Forbidden CorridorName: Treasure Tower Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4706 – Back A

June 12, 2024June 17, 2024 Master Builder 2689 Views

From: 4706: Forbidden CorridorName: A Deserted Chamber Instructions: View PDF | Download .io File

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Instructions Added Small Builds 

4735 – Back B

June 12, 2024June 17, 2024 Master Builder 2306 Views

From: 4735: SlytherinName: The Grumpy Dude Club Instructions: View PDF | Download .io File

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Instructions Added Small Builds 

4735 – Back A

June 12, 2024June 17, 2024 Master Builder 2485 Views

From: 4735: SlytherinName: Slytherin Secrets Instructions: View PDF | Download .io File

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Alternate Builds Extra Large Builds Harry Potter Harry Potter Alternate Builds Instructions Added Sorcerer's Stone 

4709 – Back C

June 12, 2024June 17, 2024 Master Builder 2367 Views

From: 4709: Hogwarts CastleName: Gryffindor Tower Instructions: View PDF | Download .io File

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Alternate Builds Extra Large Builds Harry Potter Harry Potter Alternate Builds Instructions Added Sorcerer's Stone 

4709 – Back B

June 12, 2024June 17, 2024 Master Builder 2562 Views

From: 4709: Hogwarts CastleName: The Boathouse Instructions: View PDF | Download .io File

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Alternate Builds Extra Large Builds Harry Potter Harry Potter Alternate Builds Instructions Added Sorcerer's Stone 

4709 – Back A

June 12, 2024June 17, 2024 Master Builder 2479 Views

From: 4709: Hogwarts CastleName: Castle Rooms Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4705 – Back B

June 12, 2024June 17, 2024 Master Builder 2918 Views

From: 4705: Snape’s ClassName: Snape’s Laboratory Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4705 – Back A

June 12, 2024June 17, 2024 Master Builder 2644 Views

From: 4705: Snape’s ClassName: Falling Floor Tower Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4704 – Back B

May 28, 2024May 30, 2024 Master Builder 2701 Views

From: 4704: The Chamber of the Winged KeysName: Free Ron! Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4704 – Back A

May 28, 2024May 30, 2024 Master Builder 2731 Views

From: 4704: The Chamber of the Winged KeysName: High Stakes Jungle Gym Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4707 – Back A

May 27, 2024May 30, 2024 Master Builder 2473 Views

From: 4707: Hagrid’s HutName: Telescope Tower Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4707 – Back B

May 26, 2024May 30, 2024 Master Builder 2619 Views

From: 4707: Hagrid’s HutName: A Wizard Campfire Instructions: View PDF | Download .io File

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Alternate Builds Harry Potter Harry Potter Alternate Builds Instructions Added Medium Builds Sorcerer's Stone 

4707 – Back C

May 26, 2024May 30, 2024 Master Builder 2894 Views

From: 4707: Hagrid’s HutName: A Wizard Windmill Instructions: View PDF | Download .io File

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Small Builds 

4730 – Back C

January 23, 2024 Master Builder 2331 Views

From: 4730: The Chamber of SecretsName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Medium Builds 

4730 – Back B

January 23, 2024 Master Builder 2335 Views

From: 4730: The Chamber of SecretsName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Medium Builds 

4730 – Back A

January 23, 2024January 23, 2024 Master Builder 2307 Views

From: 4730: The Chamber of SecretsName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Very Small Builds 

4731 – Back A

January 23, 2024January 23, 2024 Master Builder 2344 Views

From: 4731: Dobby’s ReleaseName: TBDSubmitted by: USERInstructions:

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Alternate Builds Goblet of Fire Harry Potter Harry Potter Alternate Builds Large Builds 

4767 – Back A

May 16, 2023May 16, 2023 Master Builder 2681 Views

From: 4767: Harry and the Hungarian HorntailName: TBDSubmitted by: USERInstructions:

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Alternate Builds Extra Large Builds Goblet of Fire Harry Potter Harry Potter Alternate Builds 

4768 – Back A

May 16, 2023May 16, 2023 Master Builder 2432 Views

From: 4768: The Durmstrang ShipName: TBDSubmitted by: USERInstructions:

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Alternate Builds Extra Large Builds Goblet of Fire Harry Potter Harry Potter Alternate Builds 

4766 – Back A

May 16, 2023May 16, 2023 Master Builder 2234 Views

From: 4766: Graveyard DuelName: TBDSubmitted by: USERInstructions:

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Alternate Builds Goblet of Fire Harry Potter Harry Potter Alternate Builds Medium Builds 

4762 – Back A

May 16, 2023May 16, 2023 Master Builder 2394 Views

From: 4762: Rescue from the MerpeopleName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Prisoner of Azkaban Small Builds 

4751 – Back A

May 16, 2023May 16, 2023 Master Builder 2219 Views

From: 4751: Harry and the Marauder’s MapName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Prisoner of Azkaban Very Small Builds 

4750 – Back A

May 16, 2023May 16, 2023 Master Builder 2061 Views

From: 4750: Draco’s Encounter with BuckbeakName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Small Builds 

4733 – Back B

March 3, 2023March 3, 2023 Master Builder 2271 Views

From: 4733: The Dueling ClubName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Small Builds 

4733 – Back A

March 3, 2023March 3, 2023 Master Builder 2327 Views

From: 4733: The Dueling ClubName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Small Builds Sorcerer's Stone 

4714 – Back D

March 2, 2023March 2, 2023 Master Builder 2635 Views

From: 4714: Gringott’s BankName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Small Builds Sorcerer's Stone 

4714 – Back C

March 2, 2023March 2, 2023 Master Builder 2194 Views

From: 4714: Gringott’s BankName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Small Builds Sorcerer's Stone 

4714 – Back B

March 2, 2023March 2, 2023 Master Builder 2184 Views

From: 4714: Gringott’s BankName: TBDSubmitted by: USERInstructions:

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Alternate Builds Harry Potter Harry Potter Alternate Builds Small Builds Sorcerer's Stone 

4714 – Back A

March 2, 2023March 2, 2023 Master Builder 2221 Views

From: 4714: Gringott’s BankName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Small Builds 

4726 – Back B

February 27, 2023February 27, 2023 Master Builder 2144 Views

From: 4726: Quidditch PracticeName: TBDSubmitted by: USERInstructions:

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Alternate Builds Chamber of Secrets Harry Potter Harry Potter Alternate Builds Small Builds 

4726 – Back A

February 27, 2023February 27, 2023 Master Builder 2312 Views

From: 4726: Quidditch PracticeName: TBDSubmitted by: USERInstructions:

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EXPLORE MORE OFFICIAL SETS

6532: Diesel Dumper
Classic Town Construction Official Sets Town Town Sets Very Small Builds 

6532: Diesel Dumper

November 19, 2020November 19, 2020 Master Builder

Year Released: 1991BricklinkInstructions

6548: Octan Gas Station
Gas Station Medium Builds Official Sets Town Town Jr Town Sets 

6548: Octan Gas Station

October 12, 2021October 12, 2021 Master Builder
7121: Naboo Swamp
Official Sets Small Builds Star Wars Star Wars Sets 

7121: Naboo Swamp

March 2, 2023March 2, 2023 Master Builder
6042: Dungeon Hunters
Castle Castle Sets Crusaders Official Sets Small Builds 

6042: Dungeon Hunters

October 1, 2024October 1, 2024 Master Builder
6245: Harbor Sentry
Imperial Soldiers Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

6245: Harbor Sentry

July 13, 2021July 29, 2023 Master Builder
1843 – Bottom
Bonus/Value Pack Alternate Builds Castle Castle Alternate Builds Instructions Added Official Sets Royal Knights Small Alt Build Small Builds Space Spyrius Spyrius Alternate Builds 

1843 – Bottom

January 22, 2021March 14, 2025 Master Builder
4950: Loader-Dozer
Official Sets Rock Raiders Rock Raiders Sets Small Builds 

4950: Loader-Dozer

November 10, 2019December 16, 2019 Master Builder
4789: AT Aquatic Mech
Alpha Team Alpha Team Sets Medium Builds Mission Deep Sea Official Sets 

4789: AT Aquatic Mech

February 12, 2024February 21, 2024 Master Builder
5988: Pharaoh’s Forbidden Ruins
Adventurers Adventurers Sets Box Story Desert Extra Large Builds Official Sets 

5988: Pharaoh’s Forbidden Ruins

October 29, 2019March 7, 2025 Master Builder
2152: Robo Raptor
ABCs Large Builds Official Sets Robo Force Robo Force Sets Space 

2152: Robo Raptor

January 14, 2021March 22, 2025 Master Builder
3066 (Kabaya: Town Space Port 1): Cosmos Glider
Official Sets Space Port Town Very Small Builds 

3066 (Kabaya: Town Space Port 1): Cosmos Glider

February 28, 2025February 28, 2025 Master Builder
6360: Weekend Cottage
Building Classic Town Medium Builds Official Sets Town Town Sets 

6360: Weekend Cottage

October 19, 2019April 4, 2020 Master Builder
6862: Secret Space Voyager
Large Builds M:Tron M:Tron Alternate Builds M:Tron Sets Official Sets Space Super Model 

6862: Secret Space Voyager

July 29, 2023July 29, 2023 Master Builder
6975: Alien Avenger
Large Builds Official Sets UFO UFO Sets 

6975: Alien Avenger

November 9, 2019November 9, 2019 Master Builder
6379: Riding Stable
Building Classic Town Large Builds Official Sets Town Town Sets 

6379: Riding Stable

February 8, 2022February 8, 2022 Master Builder
7140: X-wing Fighter
Large Builds Official Sets Star Wars Star Wars Sets 

7140: X-wing Fighter

November 10, 2019April 17, 2020 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.

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