Set Details
- Set Number
- 40905
- Name
- Birthday Cupcake
- Theme
- Seasonal
- Year
- 2026
- Pieces
- 174
- Complexity
- Moderate
- Build Time
- 1-2 hours
- Ages
- 8+
- Type
- Collectible
About LEGO Birthday Cupcake
LEGO Birthday Cupcake (set #40905) is a mid-sized build with 174 pieces from the Seasonal theme, released in 2026. The Seasonal line features holiday and seasonal themed builds and gift sets. This is a moderate-level build suitable for ages 8+, with an estimated build time of 1-2 hours.
Set Highlights
- 174 pieces at moderate complexity — a 1-2 hours build.
- Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
- Display-focused design — the finished model holds together well on a shelf without support.
Who Is This Set For?
Gift for Ages 8+
The moderate difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 8+ age range.
Weekend Build Project
174 pieces with an estimated 1-2 hours fits comfortably into a focused afternoon or weekend session.
Expanding a Seasonal Collection
A solid addition for collectors building out their Seasonal shelf. Introduces parts and builds that complement other sets from the same line.
Build Tips
Check the piece count on the bag against the parts list before starting — knowing what you have prevents mid-build surprises.
Even in small sets, connection order matters. Follow the steps rather than building sections independently.
Keep the instruction booklet after building — it's the most reliable reference for disassembly, cleaning, or reassembly after storage.
Finding Instructions
Building instructions for LEGO Birthday Cupcake (#40905) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.
Birthday Cupcake FAQ
Related Reading
More Seasonal Sets
See all Seasonal →
Also Released in 2026
All 2026 sets →Similar Build Difficulty
Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.
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