Skip to content

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
THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Alternate Builds Classic Town Race Town Town Alternate Builds Very Small Builds

1821 – Back B

February 10, 2025February 10, 2025 Master Builder 2172 Views

From: 1821: Rally Racers
Name: TBD
Submitted by: USER
Instructions

← 1821 – Back A
1821 – Back C →

You May Also Like

6899 – Back B

February 5, 2023February 13, 2023 Master Builder

6668 – Back B

February 9, 2022March 15, 2022 Master Builder

6595 – Back C

April 9, 2020April 9, 2020 Master Builder

6040 – Back D

October 8, 2023September 25, 2024 Master Builder

6681 – Back C

October 13, 2021October 13, 2021 Master Builder

1752 – Back B

April 10, 2023April 11, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

Adventurers Adventurers Sets Box Story Desert Extra Large Builds Official Sets

5988: Pharaoh’s Forbidden Ruins

October 29, 2019March 7, 2025 Master Builder

Year Released: 1998Bricklink The box reads, “Ancient ruins are the home of many hidden riches. But beware! Where treasure lies,

ABCs Large Builds Official Sets Robo Force Robo Force Sets Space

2152: Robo Raptor

January 14, 2021March 22, 2025 Master Builder

Official Sets Pirates Pirates I Pirates Sets Very Small Builds

6235: Buried Treasure

May 23, 2022May 23, 2022 Master Builder

Exploriens Exploriens Sets Official Sets Space Very Small Builds

6815: Hovertron

June 28, 2022June 28, 2022 Master Builder

Classic Town Large Builds Official Sets Town Town Sets Traffic

1590-2: ANWB Breakdown Assistance

October 22, 2021October 22, 2021 Master Builder

Gas Station Medium Builds Official Sets Town Town Jr Town Sets

6548: Octan Gas Station

October 12, 2021October 12, 2021 Master Builder

Medium Builds Official Sets Paradisa Town Town Sets

6414: Dolphin Point

January 14, 2021January 14, 2021 Master Builder

Medium Builds Official Sets Pirates Pirates I Pirates Sets

6296: Shipwreck Island

January 12, 2022January 12, 2022 Master Builder

Classic Town Construction Medium Builds Official Sets Town Town Sets

6481: Construction Crew

April 9, 2020July 4, 2022 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6820: Starfire I

January 12, 2021January 12, 2021 Master Builder

Dino Attack Official Sets Small Builds

7473: Street Sprinter vs. Mutant Lizard

March 21, 2023March 21, 2023 Master Builder

Official Sets Space Port Town Very Small Builds

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

February 28, 2025February 28, 2025 Master Builder

Classic Space Classic Space Sets Official Sets Space Very Small Builds

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder

Bonus/Value Pack Sets Classic Town Fire Ice Planet 2002 Ice Planet 2002 Sets Official Sets Small Builds Space Town

1702: Fire Fighter 4 x 4

September 6, 2023September 7, 2023 Master Builder

Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds Space

894: Mobile Ground Tracking Station

January 12, 2021July 29, 2023 Master Builder

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

4735: Slytherin

February 27, 2023February 27, 2023 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

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.