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LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
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    • Pirates
    • Space
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  • USEFUL LINKS
    • Submit Instructions!
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    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Airport

Airport Alternate Builds LEGOLAND LEGOLAND Alternate Builds Small Builds 

371-3 – Bottom A

October 8, 2024October 8, 2024 Master Builder 3999 Views

From: 371: SeaplaneName: TBDSubmitted by: USERInstructions

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Airport Alternate Builds LEGOLAND LEGOLAND Alternate Builds Small Builds 

371-3 – Top B

October 8, 2024October 8, 2024 Master Builder 4720 Views

From: 371: SeaplaneName: TBDSubmitted by: USERInstructions

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Airport Alternate Builds LEGOLAND LEGOLAND Alternate Builds Small Builds 

371-3 – Top A

October 8, 2024October 8, 2024 Master Builder 3606 Views

From: 371: SeaplaneName: TBDSubmitted by: USERInstructions

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Airport Alternate Builds LEGOLAND LEGOLAND Alternate Builds Small Builds 

371-3 – Back A

October 8, 2024October 8, 2024 Master Builder 4295 Views

From: 371: SeaplaneName: TBDSubmitted by: USERInstructions

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Airport LEGOLAND Medium Builds Official Sets 

371-3: Seaplane

October 8, 2024October 8, 2024 Master Builder 5811 Views

Year Released: 1977BricklinkInstructions

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EXPLORE MORE OFFICIAL SETS

7151: Sith Infiltrator
Episode I Medium Builds Official Sets Star Wars Star Wars Sets 

7151: Sith Infiltrator

September 1, 2023April 22, 2026 Master Builder

Year Released: 1999BricklinkInstructions

6280: Armada Flagship
Box Story Imperial Armada Large Builds Official Sets Pirates Pirates I Pirates Sets 

6280: Armada Flagship

July 13, 2021February 20, 2025 Master Builder
7126: Battle Droid Carrier
Episode I Official Sets Small Builds Star Wars Star Wars Sets 

7126: Battle Droid Carrier

July 26, 2023July 26, 2023 Master Builder
6844: Seismologic Vehicle (Sismobile)
Classic Space Classic Space Sets Official Sets Small Builds 

6844: Seismologic Vehicle (Sismobile)

October 22, 2019September 10, 2023 Master Builder
5510: Off Road 4×4
Large Builds Model Team Model Team Sets Official Sets 

5510: Off Road 4×4

February 10, 2026February 10, 2026 Master Builder
8369: Dirt Crusher RC (Yellow)
Official Sets Racers Radio Control Small Builds 

8369: Dirt Crusher RC (Yellow)

November 13, 2024November 13, 2024 Master Builder
1853: Navigator
Box Plus Different Box Versions Medium Builds Official Sets Storage Container Time Cruisers Time Cruisers Sets 

1853: Navigator

March 18, 2025March 5, 2026 Master Builder
6458: Satellite with Astronaut
Official Sets Space Port Town Town Sets Very Small Builds 

6458: Satellite with Astronaut

December 17, 2025December 17, 2025 Master Builder
6829: Radon Rover
ABCs Official Sets Small Builds Space UFO UFO Sets 

6829: Radon Rover

August 4, 2020March 22, 2025 Master Builder
7780: The Batboat: Hunt for Killer Croc
Batman I BATMAN™ BATMAN™ Sets Medium Builds Official Sets 

7780: The Batboat: Hunt for Killer Croc

March 27, 2026March 27, 2026 Master Builder
1558: Mobile Command Trailer
Classic Space Classic Space Sets Official Sets Small Builds Space 

1558: Mobile Command Trailer

December 18, 2021December 18, 2021 Master Builder
6667: Pothole Patcher
Classic Town Official Sets Small Builds Town Town Sets Traffic 

6667: Pothole Patcher

November 19, 2020November 19, 2020 Master Builder
2154: Robo Master
ABCs Box Story Large Builds Official Sets Robo Force Robo Force Sets Space 

2154: Robo Master

June 14, 2023February 11, 2025 Master Builder
1549: Santa and Chimney
Holiday and Event Holiday and Event Sets Official Sets Small Builds 

1549: Santa and Chimney

February 27, 2023March 5, 2026 Master Builder
7474: Urban Avenger vs. Raptor
Dino Attack Official Sets Small Builds 

7474: Urban Avenger vs. Raptor

April 27, 2023April 27, 2023 Master Builder
5925: Pontoon Plane
Adventurers Adventurers Sets Jungle Official Sets Small Builds 

5925: Pontoon Plane

March 5, 2026March 5, 2026 Master Builder

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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.

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