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Compare 5 retailers.

Retailer prices for 40815 are sorted by the lowest delivered price when shipping is known.

Retailer prices

Prices tracked across 10 retailers, updated twice a day.

Featured
LEGO Official Store Buy safely from the Official LEGO Store · lego.com In stock - € 5.95 shipping 23 Sep - € 20.94 not the lowest € 5.95 shipping 1 OO Otto Best deal otto.de In stock 2-3 days € 4.95 shipping 23 Sep −25% € 16.18 € 4.95 shipping 2 BB babymarkt babymarkt.de In stock 4-7 days € 4.99 shipping 23 Sep −13% € 17.98 € 4.99 shipping 3 BB Babywalz baby-walz.de In stock 4-7 days € 4.99 shipping 23 Sep −7% € 18.98 € 4.99 shipping 4 LEGO.com lego.com In stock - € 5.95 shipping 23 Sep - € 20.94 € 5.95 shipping 5 II idee+spiel ideeundspiel.com In stock 2-3 days € 6.99 shipping 23 Sep −7% € 20.98 € 6.99 shipping

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Full price history at a glance.

Lowest yet
€10.37
8 Jul 2026 · Otto
Peak price
€14.99
11 Apr 2026 · LEGO.com
Average
€13.91
7% below RRP
RRP
€14.99
reference price

Daily lowest price tracked across 6 retailers in Germany. The dotted line marks LEGO's recommended retail price.

Source: daily measurement at 6 retailers in Germany, 11 Apr 2026 – 23 Sep 2026. RRP via LEGO.com.

Last 12 price points for LEGO 40815 Birthday Party Cake
Date Price Retailer Stock
€14.99 LEGO.com In stock
€11.23 Otto In stock
€13.99 idee+spiel In stock
€12.99 babymarkt In stock
€13.99 Babywalz In stock
€13.99 Babywalz In stock
€14.99 LEGO.com In stock
€11.23 Otto In stock
€13.99 idee+spiel In stock
€12.99 babymarkt In stock
€12.99 babymarkt In stock
€13.99 Babywalz In stock
Price expectation

Price will likely hold steady.

28%
Low · ±6%

Low likelihood of further drops. Current price is near the all-time low.

Estimated price · next 3 months

now · €11.23 expected · €11.45
Price expectation Birthday Party Cake
Date Price Type
2026-06-26 €14.99 History
2026-06-27 €14.99 History
2026-06-28 €14.99 History
2026-06-29 €11.56 History
2026-06-30 €11.56 History
2026-07-01 €11.56 History
2026-07-02 €11.44 History
2026-07-03 €11.35 History
2026-07-04 €11.35 History
2026-07-05 €11.46 History
2026-07-06 €11.46 History
2026-07-07 €11.46 History
2026-07-08 €10.37 History
2026-07-09 €10.37 History
2026-07-10 €10.75 History
2026-07-11 €10.76 History
2026-07-12 €11.45 History
2026-07-13 €11.46 History
2026-07-14 €11.45 History
2026-07-15 €11.45 History
2026-07-16 €11.46 History
2026-07-17 €11.46 History
2026-07-18 €11.46 History
2026-07-19 €11.46 History
2026-07-20 €11.46 History
2026-07-21 €11.46 History
2026-07-22 €11.46 History
2026-07-23 €11.45 History
2026-07-24 €11.45 History
2026-07-25 €11.46 History
2026-07-26 €11.46 History
2026-07-27 €11.46 History
2026-07-28 €11.46 History
2026-07-29 €11.46 History
2026-07-30 €13.99 History
2026-07-31 €13.99 History
2026-08-01 €13.99 History
2026-08-02 €13.99 History
2026-08-03 €13.99 History
2026-08-04 €13.99 History
2026-08-05 €13.99 History
2026-08-06 €13.99 History
2026-08-07 €13.99 History
2026-08-08 €13.99 History
2026-08-09 €13.99 History
2026-08-10 €13.99 History
2026-08-11 €11.46 History
2026-08-12 €11.46 History
2026-08-13 €11.46 History
2026-08-14 €11.46 History
2026-08-15 €11.46 History
2026-08-16 €11.46 History
2026-08-17 €11.46 History
2026-08-18 €11.46 History
2026-08-19 €11.46 History
2026-08-20 €11.46 History
2026-08-21 €13.99 History
2026-08-22 €11.23 History
2026-08-23 €11.21 History
2026-08-24 €11.21 History
2026-08-25 €11.23 History
2026-08-26 €11.23 History
2026-08-27 €11.23 History
2026-08-28 €11.23 History
2026-08-29 €11.23 History
2026-08-30 €11.23 History
2026-08-31 €11.23 History
2026-09-01 €11.23 History
2026-09-02 €11.23 History
2026-09-03 €11.23 History
2026-09-04 €11.23 History
2026-09-05 €11.23 History
2026-09-06 €11.23 History
2026-09-07 €11.23 History
2026-09-08 €11.23 History
2026-09-09 €11.23 History
2026-09-10 €11.23 History
2026-09-11 €11.23 History
2026-09-12 €11.23 History
2026-09-13 €11.23 History
2026-09-14 €11.23 History
2026-09-15 €11.23 History
2026-09-16 €11.23 History
2026-09-17 €11.23 History
2026-09-18 €11.23 History
2026-09-19 €11.23 History
2026-09-20 €11.23 History
2026-09-21 €11.23 History
2026-09-22 €11.23 History
2026-09-23 €11.23 History
2026-10-23 €11.30 Forecast
2026-11-22 €11.38 Forecast
2026-12-22 €11.45 Forecast
€14.99 RRP
€10.37 Lowest · 90 days
€14.99 Highest · 90 days
Stable Trend

About this set

For LEGO Birthday Party Cake (40815), we track 5 retailers in Germany, with 5 currently in stock. This set from the Other theme has 219 pieces and was released in 2025. The current lowest price is €11.23 at Otto, 25% below the RRP of €14.99. That works out to €0.05 per piece and a saving of €3.76 versus the RRP. The lowest price ever was €10.37 on 8 Jul 2026 at Otto. The set is recommended for builders aged 7 and up. The current price is above that low, so waiting for a drop may pay off. Use price history and stock data to judge whether this is a good time to buy.

Dimensions
14.1 × 19.1 × 6.1 cm
Weight
240 g
Pieces
219
Age
7+
Explore more

Dive deeper into this set.

All 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.

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!
lil.leggyy · LEGO.com
Media

View the set from every angle.

8 images
LEGO Birthday Party Cake (40815) Front view LEGO Birthday Party Cake (40815) - image 1 Image 2 LEGO Birthday Party Cake (40815) - image 2 Image 3 LEGO Birthday Party Cake (40815) - image 3 Image 4 LEGO Birthday Party Cake (40815) - image 4 Image 5 LEGO Birthday Party Cake (40815) - image 5 Image 6
Reference

Set details

Set number 40815
Theme Other
Subtheme Birthday
Year 2025
Pieces 219
Price per piece €0.05
Age 7+
Dimensions 14.1 × 19.1 × 6.1 cm
Weight 240 g
RRP €14.99
Parts

Parts inventory

219
pieces
33 unique parts across 15 colors
Distinctive parts
  • Plate Round 1 x 1 Swirled Top / Poo Part ID 53119
  • Plate 3 x 3 Corner Part ID 77844
  • Wave / Flame Small with Pin Part ID 37775
Building instructions Birthday Party Cake instruction manual
Frequently asked questions

All about the Birthday Party Cake.

What is the lowest price for Birthday Party Cake?
The lowest current price we show is €11.23.

Has LEGO 40815 ever been cheaper?
The lowest historical price was €10.37 on 8 Jul 2026 at Otto.

How many pieces does LEGO 40815 have?
This set has 219 pieces.

What year is this set from?
LEGO 40815 was released in 2025.

What is the RRP for LEGO 40815?
LEGO's recommended retail price is €14.99.

What is the recommended age for LEGO 40815?
LEGO recommends ages 7+ for this set.

Is LEGO 40815 still available?
Yes, this set is currently available at 5 retailers.

Which retailers do you compare?
We currently compare 5 retailer prices for this set.

How often do you update prices?
We check prices multiple times per day at every tracked retailer and publish the most recent value on this page.