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

4709 – Back A

June 12, 2024June 17, 2024 Master Builder 3126 Views

From: 4709: Hogwarts Castle
Name: Castle Rooms ¹
Instructions: View PDF | Download .io File

Contributions

Name, PDF and .io file submitted on June 12, 2024 by: penumbra12

← 4705 – Back B
4709 – Back B →

You May Also Like

780 – Back B

February 14, 2024February 14, 2024 Master Builder

6699 – Back C

October 28, 2025October 28, 2025 Master Builder

6267 – Back A

October 11, 2021August 1, 2023 Master Builder

1789 – Back C

July 18, 2020July 18, 2020 Master Builder

4592 – Back B

November 14, 2025November 14, 2025 Master Builder

1704 – Bottom

April 8, 2022January 25, 2024 Master Builder

EXPLORE MORE OFFICIAL SETS

Castle Castle Sets Fright Knights Medium Builds Official Sets

6047: Traitor Transport

November 18, 2021November 18, 2021 Master Builder

Year Released: 1997BricklinkInstructions

Official Sets Race Town Town Sets Very Small Builds

6604: Formula-1 Racer

November 25, 2020November 25, 2020 Master Builder

Episode II Large Builds Official Sets Star Wars Star Wars Sets

7133: Bounty Hunter Pursuit

July 14, 2021July 14, 2021 Master Builder

Classic Space Classic Space Sets Official Sets Very Small Builds

6803: Space Patrol

September 21, 2019October 19, 2019 Master Builder

Official Sets Scala Scala Alternate Builds Scala Sets Small Builds

3152: Playroom for the Baby Thomas

July 10, 2024July 10, 2024 Master Builder

Official Sets Racers Radio Control Small Builds

8369: Dirt Crusher RC (Yellow)

November 13, 2024November 13, 2024 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6668: Recycle Truck

November 18, 2020November 18, 2020 Master Builder

Classic Town Fire Official Sets Small Builds Town Town Sets

6531: Flame Chaser

November 7, 2022November 7, 2022 Master Builder

Drome Racers Official Sets Racers Very Small Builds

4582: Red Bullet

October 23, 2021February 21, 2025 Master Builder

Classic Town Official Sets Small Builds Town Town Sets Traffic

6649: Street Sweeper

July 8, 2022July 8, 2022 Master Builder

Classic Town Medium Builds Official Sets Recreation Town Town Sets

6355: Derby Trotter

December 28, 2021December 28, 2021 Master Builder

Box Story Imperial Soldiers Large Builds Niels Milan Pedersen Official Sets Pirates Pirates I Pirates Sets

6274: Caribbean Clipper

February 8, 2022February 21, 2025 Master Builder

Medium Builds Official Sets Town Town Sets

6381: Motor Speedway

October 5, 2019February 19, 2023 Master Builder

12V Large Builds Official Sets Town Train Train Sets

7725: Electric Passenger Train

December 29, 2021July 26, 2022 Master Builder

Classic Town Hospital Medium Builds Official Sets Town Town Sets

6356: Med-Star Rescue Plane

March 16, 2022March 16, 2022 Master Builder

ABCs Aquanauts Aquazone Aquazone Sets Medium Builds Official Sets

6175: Crystal Explorer Sub

January 20, 2022March 22, 2025 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 © 2026 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.