Introduction
This manual provides comprehensive instructions for the assembly and enjoyment of your LEGO Harry Potter The Ministry of Magic (76403) building set. Designed for fans aged 9 and up, this modular set allows you to recreate the iconic magical headquarters with authentic details. Join Harry, Ron, and Hermione on their mission within the Ministry, utilizing Polyjuice potion to alter appearances and explore various offices and areas without detection. The set includes 12 minifigures, with three featuring transforming heads, and numerous familiar elements from the films.
What's in the Box
Your LEGO Harry Potter The Ministry of Magic 76403 set contains 990 LEGO building elements. Please ensure all bags are present before beginning assembly. A complete list of components is provided in the official LEGO building instructions accessible via the LEGO Building Instructions app.
- LEGO Building Elements (990 pieces)
- 12 Minifigures (including Harry Potter, Hermione Granger, Ron Weasley, Albert Runcorn, Mafalda Hopkirk, Reg & Mary Cattermole, Arthur Weasley, Dolores Umbridge, Pius Thicknesse, Corban Yaxley, and a Dementor)
- Instruction booklets (physical or digital via app)
Setup and Assembly
Assembly of the LEGO Harry Potter The Ministry of Magic 76403 set is a step-by-step process. For detailed, interactive 3D building instructions, it is highly recommended to download the free LEGO Building Instructions app on your smart device. This app allows you to view, zoom, and rotate the model as you build, enhancing the construction experience.
The set is designed with modular sections, allowing for flexible arrangement and reconfiguration. Follow the numbered bags and corresponding instruction steps carefully to construct each section of the Ministry of Magic.

Image: The complete LEGO Harry Potter Ministry of Magic 76403 set, showcasing its modular design and included minifigures.

Image: An overview of the LEGO Ministry of Magic set, highlighting its recommended age of 9+ and 990 pieces.

Image: A detailed view of the LEGO Ministry of Magic set, illustrating how its various modular sections connect to form the complete structure.
Assembly Overview Video
Video: An official overview of the LEGO Harry Potter The Ministry of Magic set, demonstrating its features and modularity.
Operating and Play Features
The LEGO Harry Potter The Ministry of Magic set offers a variety of interactive play features and detailed environments to explore:
- Modular Design: The set can be reconfigured to create different layouts and scenes from the Ministry of Magic.
- Minifigure Transformations: Three minifigures (Harry, Ron, Hermione) can transform using the Polyjuice potion feature by turning their heads and changing hair pieces.
- Detailed Offices: Explore Dolores Umbridge's office, Arthur Weasley's office, and the Hall of Prophecy.
- Floo Network Atrium: Recreate scenes from the Floo Network.
- Iconic Accessories: Includes a red phone box for entering the Ministry, stacks of the Daily Prophet newspaper, Umbridge's Patronus cat, two decoy detonators, and the Slytherin locket Horcrux.

Image: Two children engaging in play with the LEGO Ministry of Magic set, arranging minifigures and exploring the various sections.

Image: An aerial view of the LEGO Ministry of Magic set, displaying the various modular rooms, minifigures, and small accessory pieces spread out during play.
Play Features Video
Video: A short official video showcasing key play features and minifigure interactions within the LEGO Harry Potter The Ministry of Magic 76403 set.
Maintenance and Care
To ensure the longevity and cleanliness of your LEGO set, follow these care guidelines:
- Cleaning: Clean LEGO bricks and elements with a mild soap solution and lukewarm water (not exceeding 40°C or 104°F). Rinse thoroughly with clear water and air dry at room temperature. Do not use hot water, harsh chemicals, or abrasive cleaning materials.
- Storage: Store your LEGO set in a cool, dry place away from direct sunlight to prevent discoloration and warping of plastic elements. Keep small pieces in a container to avoid loss.
- Handling: Handle the set with care to prevent pieces from detaching or breaking.
Troubleshooting
Most issues with LEGO sets relate to assembly or missing pieces. Here are some common solutions:
- Missing Pieces: If you find any pieces missing from your new set, please visit the official LEGO Customer Service website to request replacement parts.
- Assembly Difficulties: Refer to the digital instructions in the LEGO Building Instructions app for detailed 3D views and step-by-step guidance. Double-check each step to ensure correct placement of bricks.
- Loose Connections: Ensure bricks are firmly pressed together. LEGO elements are designed to fit snugly.
Specifications
| Brand | LEGO |
| Model Name | The Ministry of Magic™ 76403 |
| Model Number | 6378983 |
| Number of Pieces | 990 |
| Recommended Age | 9+ years (Manufacturer Minimum Age: 108 months) |
| Material Type | Plastic |
| Item Dimensions (L x W x H) | 18.9 x 14.88 x 2.78 inches (Packaged) |
| Assembled Dimensions (H x W x D) | Over 12 in. (31 cm) high, 8.5 in. (21 cm) wide and 8 in. (21 cm) deep |
| Item Weight | 1.36 kg |
| Educational Objective | Creative Building |
| UPC | 673419355520 |
Safety Information
This product contains small parts and is not suitable for children under 3 years due to choking hazards. Always supervise young children during play. No additional specific safety information is provided beyond standard toy safety guidelines.
Warranty and Support
For information regarding product warranty, missing parts, or general support, please visit the official LEGO Customer Service website. LEGO is committed to providing high-quality products and support for its builders.
Official LEGO Website: www.lego.com/service







