Ages 7+

Birthday Party Cake (40815)

Name: Birthday Party Cake
Brand: LEGO
SKU: 40815
Rating: 4.4 (4 reviews)

Prices last checked: 30 April 2026 at 18:01

LEGO.com RRP:

£12.99

LEGO.com

★4.4

(4 reviews)

🧱 219 pieces - : £0.06

Available From

Best Deal

£13.00

Price checked: 30 Apr 2026

View Deal →

LEGO.comOfficial

£12.99

Price updated: 26 Apr 2026

View on LEGO →

Building Instructions Brickset

Price Analysis

Lowest Price Ever

£12.99

at LEGO.com · Jan 2026

Average Price (12mo)

£12.99

Current vs Average

0.0%

Near average

Price Trend

Stable

Last 30 days

Best Month to Buy

January

The lowest price we've recorded for Birthday Party Cake is £12.99 at LEGO.com in January 2026. The current price is close to the 12-month average of £12.99. Historically, January tends to offer the best prices for this set.

Price History & Buying Verdict

VerdictGood time to buy

•The current best price of £13.00 is within 5% of the all-time low we've recorded (£12.99 at LEGO.com, January 2026).

We've been tracking the price of LEGO Birthday Party Cake (219 pieces) for 102 days, recording 9 data points across LEGO.com and major UK retailers. Over that period the price has dropped 0 times below previous levels, with the lowest price ever recorded being £12.99 at LEGO.com in January 2026.

The 12-month average sale price for set 40815 works out to £12.99 — that's 0% above the LEGO RRP of £12.99. The highest price we recorded across our tracked retailers was £13.00, giving a range of about £0.01 between the cheapest and most expensive observation.

Historically, January has produced the lowest average prices for Birthday Party Cake, so if you're not in a hurry it's worth bookmarking the page closer to that window.

Want to see how LEGO Birthday Party Cake (set 40815) compares against other sets? Browse the best-value LEGO sets or check the full price-history tracker.

Description

Birthday Party Cake (40815) is a LEGO set with 219 pieces, with an RRP of £12.99. It's currently available from £13.00 at argos_uk. Prices have been stable over the last 30 days.

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.

Features

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

Frequently Asked Questions about Birthday Party Cake

What is the best price for LEGO Birthday Party Cake (Set 40815)?

LEGO Birthday Party Cake (Set #40815) is currently priced at £12.99 on LEGO.com. We continuously monitor prices across multiple UK retailers to find you the best deals.

How many pieces are in LEGO set 40815?

LEGO Birthday Party Cake (Set #40815) contains 219 pieces. At the best available price of £13.00, that works out to approximately 5.9p per piece.

What age is LEGO Birthday Party Cake suitable for?

LEGO Birthday Party Cake (Set #40815) is recommended for ages 7+.

Where can I find the building instructions for LEGO Birthday Party Cake?

You can download the official building instructions for LEGO Birthday Party Cake (Set #40815) for free from LEGO.com. Download the building instructions here. The instructions are available as a PDF and can be viewed on any device.

Where can I buy LEGO Birthday Party Cake in the UK?

LEGO Birthday Party Cake (Set #40815) is available from 1 UK retailer including argos_uk. Prices range from £13.00. It's also available directly from LEGO.com at £12.99.

What is the lowest price ever recorded for LEGO Birthday Party Cake?

The lowest price we've recorded for LEGO Birthday Party Cake (Set #40815) is £12.99 at LEGO.com in January 2026. That's 0% off the LEGO RRP of £12.99. Track the latest movements on our LEGO price history page.