Nice addition to the collection.
A very nice addition to the collection. The building process was also very fun. This will definitely be a highlight for every birthday!
Retailer prices for 40815 are sorted by the latest lowest price.
Retailer pricesPrice history 40815
We check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.
Daily lowest price tracked across 12 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 12 Dutch retailers, 14 Dec 2025 – 1 Jun 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €11,99 | 1001 FarmToys | In stock | |
| €14,99 | LEGO.com | In stock | |
| €11,95 | GoodBricks | In stock | |
| €14,95 | Blokkenpiloot | In stock | |
| €14,99 | BRICKshop | In stock | |
| €14,99 | Playtoday | In stock | |
| €12,95 | MisterBricks | In stock | |
| €11,99 | 1001 FarmToys | In stock | |
| €14,99 | LEGO.com | In stock | |
| €11,95 | GoodBricks | In stock | |
| €14,99 | BRICKshop | In stock | |
| €14,99 | Playtoday | In stock |
Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.
Low likelihood of further drops. Current price is near the all-time low.
How LEGO 40815 compares to RRP and history.
For LEGO Birthday Party Cake (40815), we track 7 retailers in the Netherlands, with 7 currently in stock. The current lowest price is €11,95. Use price history and stock data to judge whether this is a good time to buy.
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.
All about this set
Background, build experience, collector context, and buying notes in one story.
For LEGO Birthday Party Cake (40815), we track 7 retailers in the Netherlands, with 7 currently in stock. The current lowest price is €11,95. Use price history and stock data to judge whether this is a good time to buy.
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.
The current lowest price is €11,95 across 7 tracked retailers.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Tiles Round and Curved
Tile Round 1 x 2 Half Circle
Part ID 1748 · Dark Pink
Qty 28
Tile Round 1 x 1 Half Circle
Part ID 24246 · Reddish Brown
Qty 18
Tile Round 1 x 2 Half Circle
Part ID 1748 · Dark Pink · Spare
Qty 1
Tile Round 1 x 1 Half Circle
Part ID 24246 · Reddish Brown · Spare
Qty 1
Tiles Special
Tile Round 1 x 1 with Hollow Bar
Part ID 20482 · White
Qty 10
Tile Round 1 x 1 with Hollow Bar
Part ID 20482 · White · Spare
Qty 1
Bricks Special
Brick Special 1 x 4 with 4 Studs on One Side
Part ID 30414 · Reddish Brown
Qty 10
Brick Special 1 x 1 with Studs on 2 Adjacent Sides
Part ID 26604 · White
Qty 4
Brick Special 1 x 2 with 2 Studs on 1 Side
Part ID 11211 · Reddish Brown
Qty 2
Energy Effects
Wave / Flame Small with Pin
Part ID 37775 · Trans-Orange
Qty 10
Wave / Flame Small with Pin
Part ID 37775 · Trans-Orange · Spare
Qty 1
Plates
Plate 3 x 3
Part ID 11212 · Reddish Brown
Qty 8
Plate 1 x 2
Part ID 3023 · Reddish Brown
Qty 8
Plate 1 x 6
Part ID 3666 · Light Bluish Gray
Qty 8
Plate 1 x 8
Part ID 3460 · Black
Qty 6
Plate 2 x 4
Part ID 3020 · Reddish Brown
Qty 4
Plate 1 x 2
Part ID 3023 · Medium Azure
Qty 4
Plate 1 x 1
Part ID 3024 · Lime
Qty 4
Plate 1 x 4
Part ID 3710 · Bright Light Yellow
Qty 4
Plate 3 x 3 Corner
Part ID 77844 · White
Qty 4
Plate 1 x 1
Part ID 3024 · Reddish Brown
Qty 2
Plate 1 x 4
Part ID 3710 · Black
Qty 2
Plate 2 x 6
Part ID 3795 · Reddish Brown
Qty 1
Plate 1 x 1
Part ID 3024 · Lime · Spare
Qty 1
Plate 1 x 1
Part ID 3024 · Reddish Brown · Spare
Qty 1
Bricks Curved
Slope Curved 2 x 1 No Studs [1/2 Bow]
Part ID 11477 · Bright Light Yellow
Qty 8
Slope Curved 2 x 2 x 2/3
Part ID 15068 · Medium Azure
Qty 8
Slope Curved 2 x 2 x 2/3
Part ID 15068 · Lime
Qty 8
Plants & Trees
Plant, Flower, Plate Round 1 x 1 with 5 Petals
Part ID 24866 · Bright Light Orange
Qty 8
Plant, Flower, Plate Round 1 x 1 with 5 Petals
Part ID 24866 · Bright Pink
Qty 8
Plant, Flower, Plate Round 1 x 1 with 5 Petals
Part ID 24866 · Bright Pink · Spare
Qty 1
Plant, Flower, Plate Round 1 x 1 with 5 Petals
Part ID 24866 · Bright Light Orange · Spare
Qty 1
Tiles
Tile 1 x 1 with Groove
Part ID 3070b · Reddish Brown
Qty 8
Tile 1 x 1 with Groove
Part ID 3070b · Lime
Qty 4
Tile 2 x 2 with Groove
Part ID 3068b · Lime
Qty 2
Tile 2 x 2 with Groove
Part ID 3068b · Dark Bluish Gray
Qty 2
Tile 1 x 3
Part ID 63864 · Lime
Qty 2
Tile 1 x 6 with Groove
Part ID 6636 · Dark Pink
Qty 2
Tile 1 x 2 with Groove
Part ID 3069b · Tan
Qty 1
Tile 2 x 6
Part ID 69729 · Dark Bluish Gray
Qty 1
Tile 1 x 1 with Groove
Part ID 3070b · Lime · Spare
Qty 1
Tile 1 x 1 with Groove
Part ID 3070b · Reddish Brown · Spare
Qty 1
Bricks
Brick 1 x 6
Part ID 3009 · White
Qty 4
Brick 1 x 8
Part ID 3008 · Reddish Brown
Qty 2
Plates Round Curved and Dishes
Plate Round 1 x 1 Swirled Top / Poo
Part ID 53119 · Lavender
Qty 4
Plate Round Corner 6 x 6
Part ID 6003 · Tan
Qty 4
Plate Round Corners 2 x 6 Double
Part ID 18980 · Reddish Brown
Qty 2
Plate Round 1 x 1 Swirled Top / Poo
Part ID 53119 · Lavender · Spare
Qty 1
Plates Special
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]
Part ID 41740 · Magenta
Qty 2
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)
Part ID 18674 · Dark Pink
Qty 1
Bricks Round and Cones
Brick Round 2 x 2 with Axle Hole
Part ID 3941 · Bright Light Yellow
Qty 1
Retailer reviews
Summarized retailer review data when available.
A very nice addition to the collection. The building process was also very fun. This will definitely be a highlight for every birthday!
I love this set easy and fun builds. I bought this for myself for my 35th birthday.
I built this for a child's birthday party and it was a hit! I completed the build prior to the event and put the candles inside to keep them safe for travel. The birthday child was so excited to add the appropriate number of candles herself to this birthday cake. She is already planning to add one more candle next year.
Very fun to build.
This was a fun and quick build. I would recommend.
so cute! bought for myself as a birthday gift so fun and relatively simple to build looks super cute with my lego creators collection too!
All retailer prices
Current prices, stock and discounts per retailer.
Price context
Lowest, highest and average price for this set.
This context is based on 297 price points across 7 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The chance of a further drop is low. The current price is near the lowest measurement.
FAQ & set details
Pieces, year, RRP and retailer coverage.
Quick answers about price, stock and set data.