How many pieces are in the Birthday Party Cake?

Birthday Party Cake contains 219 pieces.

What age is the Birthday Party Cake recommended for?

This set is recommended for ages 7+.

When was the Birthday Party Cake released?

Birthday Party Cake was released in 2025.

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🏛 Seasonal

Set #40815

Birthday Party Cake

Name: Birthday Party Cake
Brand: LEGO
SKU: 40815-1

The Birthday Party Cake is a delightful seasonal set.

🏆 Best For: Great for kids and adults who enjoy building seasonal decorations and celebratory displays ⏱ 1.5 hr build 🧩 219 pcs 🎂 Ages 7+

★★★★☆ 4.0

Fans appreciate the set's vibrant colors and simple, enjoyable build, making it a great gift or display piece. Some feel it's slightly overpriced for the piece count but overall a fun and festive addition to any LEGO collection.

MSRP

$14.99

Check price on Amazon

📝 Our Take

The Birthday Party Cake is a delightful seasonal set. This set offers a charming and colorful build, perfect for adding a festive touch to any LEGO collection or birthday celebration.

This set is perfect for LEGO enthusiasts of all ages, especially those who enjoy seasonal and celebratory builds. With its relatively low piece count and straightforward construction, it's a great project for beginners and experienced builders alike, offering a fun and quick building experience with a lovely display piece.

Skip this if you're looking for a more complex or challenging build. If you prefer intricate models with advanced techniques, consider exploring larger LEGO sets or those with Technic elements for a more demanding and rewarding experience.

✨ New

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How does this set compare to other LEGO birthday-themed sets? What are some creative ways to display this cake? Is this set suitable for young children to build on their own? Will this set retire soon, and how might that affect its value?

🧱 Building Experience

🧩

219

Pieces

⏱

1.5h

Build Time

📊

Beginner

Difficulty

📏

7cm × 9cm × 9cm

Dimensions

Build Highlights:

Uses vibrant colors to create a festive atmosphere
Incorporates curved slopes for a smooth, cake-like appearance
Features small flame elements to represent candles
Easy to assemble and display

📈 Investment Analysis

→ Price stable

C+

Investment Grade

⏳ Active

This seasonal set offers moderate investment potential. Its relatively low price point makes it accessible, and its seasonal theme may appeal to collectors looking for holiday-themed LEGO sets. However, its wide availability and lack of exclusive or rare elements may limit its appreciation potential. While it may not be a high-return investment, it could hold its value or see a slight increase over time, particularly if it becomes a sought-after seasonal item.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

📖 About This Set

Add a sweet touch to celebrations with this playful LEGO® Birthday Party Cake kit for boys, girls and loved ones aged 7 and over. The buildable birthday cake opens to reveal a hidden compartment where there are pink and yellow flowers to decorate the cake. Every birthday cake needs candles, and you’ll find 10 of them included! Choose how many to add to this LEGO birthday cake toy so you can personalise the cake to reflect kids’ ages.

This set makes a fun birthday gift that can be played with long after the celebrations are over. Why not create a family tradition and bring it out year after year as part of your birthday party decor? But it’s not just for birthdays. This LEGO cake set is also a fun gift or decoration for any special occasion. So get ready to serve an extra slice of fun at your next celebration.

Buildable birthday cake kit – This LEGO® Birthday Party Cake kit for boys, girls and loved ones aged 7 and up comes with decorations and candles to build a customizable celebration cake
LEGO® decorations – Add sugar-sweet birthday decorations to the cake with the flowers, swirls and candles
Includes 10 candles – Celebrate birthdays by personalizing the cake with the candles to match a child’s age or add all 10 to create a fun birthday decor display
Hidden compartment – The birthday cake toy features a hidden compartment where the decorations can be stored, making this a LEGO® set that can be played with or displayed time after time
A fun birthday gift for kids – This LEGO® cake set makes a great gift idea for kids aged 7 and up or for anyone celebrating a special occasion
Measurements – The main model in this 219-piece set measures over 2.5 in. (7 cm) high, 3.5 in. (9 cm) wide and 3.5 in. (9 cm) deep

⚖ Compare Similar Sets

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Compared to other small seasonal sets, the Birthday Party Cake offers a unique take on a celebratory theme. While sets like the Easter Bunny's Carrot House (40587-1) focus on different holidays, this set provides a more versatile and universally appealing subject matter. Its simple design and bright colors make it a great choice for anyone looking to add a touch of festivity to their LEGO collection without investing in a larger, more complex set.

📦 Full Parts Inventory - 33 unique parts • 188 total pieces

Brick Special 1 x...

Part #: 11211 2× Reddish Brown

Plate 3 x 3

Part #: 11212 8× Reddish Brown

Slope Curved 2 x ...

Part #: 11477 8× Bright Light Yellow

Slope Curved 2 x ...

Part #: 15068 8× Lime

Slope Curved 2 x ...

Part #: 15068 8× Medium Azure

Tile Round 1 x 2 ...

Part #: 1748 28× Dark Pink

Plate Special Rou...

Part #: 18674 1× Dark Pink

Plate Round Corne...

Part #: 18980 2× Reddish Brown

Tile Round 1 x 1 ...

Part #: 20482 1× White

Tile Round 1 x 1 ...

Part #: 24246 18× Reddish Brown

Plant, Flower, Pl...

Part #: 24866 8× Bright Light Orange

Plant, Flower, Pl...

Part #: 24866 1× Bright Pink

Brick Special 1 x...

Part #: 26604 4× White

Brick 1 x 8

Part #: 3008 2× Reddish Brown

Brick 1 x 6

Part #: 3009 4× White

Plate 2 x 4

Part #: 3020 4× Reddish Brown

Plate 1 x 2

Part #: 3023 8× Reddish Brown

Plate 1 x 2

Part #: 3023 4× Medium Azure

Plate 1 x 1

Part #: 3024 1× Lime

Plate 1 x 1

Part #: 3024 2× Reddish Brown

Brick Special 1 x...

Part #: 30414 10× Reddish Brown

Tile 2 x 2 with G...

Part #: 3068b 2× Lime

Tile 2 x 2 with G...

Part #: 3068b 2× Dark Bluish Gray

Tile 1 x 2 with G...

Part #: 3069b 1× Tan

Tile 1 x 1 with G...

Part #: 3070b 8× Reddish Brown

Tile 1 x 1 with G...

Part #: 3070b 1× Lime

Plate 1 x 8

Part #: 3460 6× Black

Plate 1 x 6

Part #: 3666 8× Light Bluish Gray

Plate 1 x 4

Part #: 3710 4× Bright Light Yellow

Plate 1 x 4

Part #: 3710 2× Black

Wave / Flame Smal...

Part #: 37775 1× Trans-Orange

Plate 2 x 6

Part #: 3795 1× Reddish Brown

Brick Round 2 x 2...

Part #: 3941 1× Bright Light Yellow

Plate Special 1 x...

Part #: 41740 2× Magenta

Plate Round 1 x 1...

Part #: 53119 4× Lavender

Plate Round Corne...

Part #: 6003 4× Tan

Tile 1 x 3

Part #: 63864 2× Lime

Tile 1 x 6 with G...

Part #: 6636 2× Dark Pink

Tile 2 x 6

Part #: 69729 1× Dark Bluish Gray

Plate 3 x 3 Corner

Part #: 77844 4× White

This set offers a good selection of curved slopes and round tiles in vibrant colors, useful for MOC builders looking to add organic shapes and decorative details to their creations. The abundance of Reddish Brown plates and bricks also provides a solid foundation for various building projects.

🛒 Where to Buy

LEGO

✓ In Stock

$14.99

💎 Notable Parts

Dark Pink Tile Round 1 x 2 Half Circle (28x) $4.20

Trans-Orange Wave / Flame Small with Pin (10x) $2.50

Reddish Brown Brick Special 1 x 4 with 4 Studs on One Side (10x) $1.50

Bright Pink Plant, Flower, Plate Round 1 x 1 with 5 Petals (8x) $3.20

Lime Slope Curved 2 x 2 x 2/3 (8x) $1.20

Est. BrickLink Part Value

$12.60

💡 MOC Potential

🏰 Small medieval bakery or sweets shop

🌳 Floral display stand or small garden scene

🏙 Miniature fairground cake stall

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 8 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

The overall sentiment towards the LEGO Birthday Party Cake (40815-1) is neutral, based on the analyzed YouTube video data. Reviews primarily consist of set reviews and speed builds, lacking strong positive or negative opinions.

Lego Chocolate Cake - Lego In Real Life 10 / Stop Motion Cooking & ASMR

tomosteen • 85.5M views Review

Mario Kart LEGO?! Plus a Huge Death Star Sale… | Last Week in LEGO

Block Party • 12.0K views Review

LEGO Birthday Cake Review!

DuckBricks • 3.1K views Review

Community Sentiment

Based on 8 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

3 YouTube reviews

BlockTalk AI Summary

just2good reviews the LEGO Birthday Cake (40153), highlighting surprises within the set. DuckBricks showcases the new Birthday Cake LEGO Set, aligning it with their own birthday celebration.

Reddit Reviews

No Reddit reviews found

YouTube Reviews

3 videos

Lego Chocolate Cake - Lego In Real Life 10 / Stop Motion Cooking & ASMR

tomosteen

85.5M views Review

Mario Kart LEGO?! Plus a Huge Death Star Sale… | Last Week in LEGO

Block Party

12.0K views Review

LEGO Birthday Cake Review!

DuckBricks

3.1K views Review

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

📖 Building Instructions 2

BI 3105, 56, 40815 V29

Download PDF

BI 3105, 56, 40815 V39

Download PDF

Inventory Statistics

Unique Parts

188

Total Pieces

Minifigures

Inventory Version: 1

Celebrate with LEGO!
A 219-piece Birthday Cake surprise!

Birthday Party Cake

📝 Our Take

Ask BlockTalk about this set

🧱 Building Experience

📈 Investment Analysis

📖 About This Set

⚖ Compare Similar Sets

📦 Full Parts Inventory - 33 unique parts • 188 total pieces

🛒 Where to Buy

💎 Notable Parts

💡 MOC Potential

📰 Seasonal News

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