Skip to content
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
Alternate Builds Classic Town Small Builds Town Town Alternate Builds Traffic 

6645 – Back A

November 20, 2020November 20, 2020 Master Builder 1998 Views

From: 6645: Street Sweeper
Name: TBD
Submitted by: USER
Instructions

  • Back A

  • ← 6645: Street Sweeper
  • 6645 – Back B →

You May Also Like

885 – Back C

January 27, 2024January 27, 2024 Master Builder

7143 – Back B

September 1, 2025September 3, 2025 Master Builder

6081 – Back B

June 30, 2022June 30, 2022 Master Builder

6925 – Back D

September 25, 2019September 28, 2019 Master Builder

607 – Back C

October 19, 2019October 25, 2021 Master Builder

6980 – Inside A

July 21, 2021July 21, 2021 Master Builder

EXPLORE MORE OFFICIAL SETS

6642: Police Helicopter
Classic Town Official Sets Police Small Builds Town Town Sets 

6642: Police Helicopter

April 8, 2020April 8, 2020 Master Builder

Year Released: 1988Bricklink

6553: Crisis News Crew
Medium Builds Official Sets Outback Town Town Sets 

6553: Crisis News Crew

December 4, 2023December 4, 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
6016: Knight’s Arsenal
Castle Castle Sets Lion Knights Official Sets Very Small Builds 

6016: Knight’s Arsenal

October 12, 2021October 12, 2021 Master Builder
6973: Deep Freeze Defender
ABCs Box Story Ice Planet 2002 Ice Planet 2002 Sets Jørn Thomsen Large Builds Official Sets Space 

6973: Deep Freeze Defender

September 26, 2019December 17, 2024 Master Builder
6592: Vacation Hideaway (Weekend Cottage)
Building Classic Town Official Sets Small Builds Town Town Sets 

6592: Vacation Hideaway (Weekend Cottage)

June 23, 2025June 23, 2025 Master Builder
535: Basic Building Set Tote Pack
Basic Large Builds Official Sets Universal Building Set 

535: Basic Building Set Tote Pack

May 15, 2023May 16, 2023 Master Builder
4883: Gear Grinders
Designer Sets Designer Sets Alternate Builds Designer Sets Set Medium Builds Official Sets 

4883: Gear Grinders

August 2, 2021August 2, 2021 Master Builder
3152: Playroom for the Baby Thomas
Official Sets Scala Scala Alternate Builds Scala Sets Small Builds 

3152: Playroom for the Baby Thomas

July 10, 2024July 10, 2024 Master Builder
7166: Imperial Shuttle
Episode IV/V/VI Large Builds Official Sets Star Wars Star Wars Sets 

7166: Imperial Shuttle

April 16, 2021September 4, 2023 Master Builder
6289: Red Beard Runner
Extra Large Builds Official Sets Pirates Pirates I Pirates Sets 

6289: Red Beard Runner

July 13, 2021July 13, 2021 Master Builder
6021: Jousting Knights
Castle Castle Sets Lion Knights Official Sets Very Small Builds 

6021: Jousting Knights

September 25, 2024September 25, 2024 Master Builder
7121: Naboo Swamp
Official Sets Small Builds Star Wars Star Wars Sets 

7121: Naboo Swamp

March 2, 2023March 2, 2023 Master Builder
1843: Space/Castle Value Pack
Bonus/Value Packs Castle Castle Sets Official Sets Royal Knights Small Builds Space Spyrius Spyrius Sets 

1843: Space/Castle Value Pack

January 21, 2021September 13, 2023 Master Builder
6344: Jet Speed Justice
Classic Town Medium Builds Official Sets Police Town Town Sets 

6344: Jet Speed Justice

October 8, 2024October 8, 2024 Master Builder
775: Fire Fighter Ship
Boat Fire Medium Builds Official Sets 

775: Fire Fighter Ship

July 22, 2024July 22, 2024 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.