- Build a birthday diorama – Create a party scene to mark any LEGO® fan’s birthday. The set includes lots of celebratory details, including balloons, a candle, cakes, gifts and “Happy Birthday” signage
- Send birthday wishes – Why not give this LEGO® Birthday Diorama (40584) as a gift to mark the birthday of a friend or loved one of any age from 6+
- Dimensions – The scene measures over 3.5 in. (9 cm) high, 3 in. (8 cm) wide and 3 in. (8 cm) deep
The Lego set Birthday Diorama with the set number 40584 is part of the LEGO Miscellaneous theme and is recommended for ages 6+. It was released in January 2023. It includes 2 minifigures. The model has 157 pieces, and we estimate it takes around < 1 hour to build. It was designed by Dan Squirrell.133 Brickfact users have this set in their collection.
The set weighs about 0.190 kg. The box measures 6.2 x 5.6 x 2.4 in (15.7 x 14.1 x 6.1 cm). The recommended retail price is £10.99.
The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about £11.02.
Lego 40584 product data
Set Information
Availability
Release
01/2023
Retiring Status
Retired (12/2023)
Price Information
RRP
£10.99
Insiders Points (for purchase at Lego)
88
Part Out Value
£11.02
i
Packaging
Weight
0.190 kg
Packaging dimensions
6.2 x 5.6 x 2.4 in
EAN (GTIN13)
5702017434773
Popularity with Brickfact users
- users have this set
- 133
133 Brickfact users have Birthday Diorama in their collection.
Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 18 October 2026.
Lego 40584 price trend
Average sale price on secondary marketplaces – not the new price at retailers.
- Current market value
- £11.06
- Growth vs. RRP
- +0.6 % £10.99
- Range
- £9.29 – £12.31
- Average
- £11.03
Loading price history…
Minifigures from 40584 Birthday Diorama
The Birthday Diorama set includes 2 different minifigures, 2 of which are unique to this set. The combined value of the minifigures is £2.85, which is ~26% of the RRP of this set.
x1
Boy - White Shirt, Dark Azure Short Legs, Dark Purple Top Hat
Holiday & Event
2023
#hol323
£1.39
i
Unique
x1
Girl - Bright Pink Top with Butterflies and Flowers, Tan Short Legs, Dark Azure Hair
Holiday & Event
2023
#hol324
£1.46
Unique
Official Set Description for LEGO 40584 Birthday Diorama
Mark your birthday or send a celebratory gift to friends or family with this sweet LEGO® Birthday Diorama (40584). The set includes lots of colorful birthday details, including balloons, a candle, cakes, gifts and “Happy Birthday” signage. There are also 2 minifigures to add to the party vibe. Use the changeable scenery to customize your build.
Building Instruction for LEGO 40584 Birthday Diorama
Part Lists for LEGO 40584 Birthday Diorama
LEGO 40584 Frequently Asked Questions
Is LEGO 40584 still available?
LEGO has retired 40584 Birthday Diorama, and no retailer in our price comparison currently sells it new. Its market value on secondary marketplaces is £11.06.
Can this LEGO set be used to celebrate birthdays?
Yes, this LEGO set is specifically designed to be used as a celebratory gift or to mark birthdays.
What does the LEGO Birthday Diorama set include?
The LEGO Birthday Diorama set includes colorful birthday elements such as balloons, a candle, cakes, gifts, and "Happy Birthday" signage. It also comes with 2 minifigures to add to the party atmosphere.
Can this LEGO set be customized?
Absolutely! The LEGO Birthday Diorama set features changeable scenery, allowing you to customize and create your own unique birthday party scene.
Can this LEGO set be given as a gift?
Yes, this LEGO Birthday Diorama set can be a wonderful gift to celebrate the birthday of a friend or loved one of any age, starting from 6 years old and above.
