The Lego set Tales of the Space Age with the set number 21340 is part of the LEGO Ideas theme and is recommended for ages 18+. That makes it a set mainly for adults. It was released in May 2023. The model has 688 pieces, and we estimate it takes around 2 hours to build. 264 Brickfact users have this set in their collection.
The set weighs about 0.987 kg. The box measures 15 x 10.3 x 2.8 in (38.2 x 26.2 x 7.1 cm). The recommended retail price is £49.99.
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 £57.47.

Lego 21340 product data

Set Information

Set ID
21340
Theme
Pieces
688
Building Time
2 hours
Age Range
18+

Availability

Release
05/2023
Retiring Status
Retired (12/2024)

Price Information

RRP
£49.99
Insiders Points (for purchase at Lego)
400
Part Out Value
£57.47
i

Packaging

Weight
0.987 kg
Packaging dimensions
15 x 10.3 x 2.8 in
EAN (GTIN13)
5702017452135

Popularity with Brickfact users

users have this set
264
buyers in the last 12 months
25

264 Brickfact users have Tales of the Space Age in their collection. 25 users bought it in the last 12 months.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 23 October 2026.

Lego 21340 price trend

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value
£59.77
Growth vs. RRP
+19.6 % £49.99
Range
£54.66 – £60.60
Average
£58.40

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Official Set Description for LEGO 21340 Tales of the Space Age

Turn off your thrusters and let your mind drift into space with this LEGO® Ideas Tales of the Space Age (21340) building set. It features 4 connectable brick-built 3D postcards, each depicting scenes inspired by 1980s sci-fi myths, films, books and posters. Create cool minimalist LEGO brick representations of an observatory for viewing comets and shooting stars, a moon base and lunar eclipse, a shuttle blasting through space, and a black hole.

Build together, display together
A stellar gift idea for space, astronomy and art lovers, the buildable postcards look great freestanding on a table or shelf or hung on the wall. The models are also easy to connect for displaying together. The set comes with separate building instructions for each postcard, making it an ideal group activity to enjoy with family or friends.

Welcome to your zone
Explore LEGO Sets for Adults, a carefully curated collection of exciting models. Whatever your passion, there is a building project waiting for you.

  • 4 connectable, space-themed 3D postcards (21340) – Tell Tales of the Space Age in LEGO® style with these buildable postcard models, inspired by 1980s sci-fi myths, films, books and posters
  • Original designs – Build colourful images of an observatory for viewing comets and shooting stars, a moon base and lunar eclipse, a space shuttle and a black hole
  • Recreate different constellations – The pink/purple postcard features star elements that can be arranged to mirror the Ursa Major, Cepheus, Ursa Minor or Cassiopeia constellations
  • Display together or individually – The postcards can be connected in any order. Display them on a flat surface or mount them on the wall using the hangers on the back of each one
  • Gift idea for adults – Treat yourself or give this 688-piece LEGO® Ideas build-and-display model as a birthday, Christmas or surprise gift for lovers of space, astronomy and art
  • Home decor – Each buildable postcard measures over 14 cm (5.5 in.) high, 9 cm (3.5 in.) wide and 3 cm (1 in.) deep and can be displayed freestanding or hung on the wall
  • Build solo or together – Separate building instruction booklets for each postcard mean building can be a group activity. Also includes a booklet featuring the set’s fan designer and LEGO® designers
  • The LEGO® fans’ choice – This collectible model for adults is one of many LEGO Ideas sets, each created by a fan designer, voted for by LEGO fans and produced by the LEGO Group
  • Premium quality – LEGO® bricks meet demanding industry quality standards to ensure that they connect simply and strongly
  • Safety assurance – LEGO® components are dropped, heated, crushed, twisted and carefully analysed to make sure that they comply with strict global safety standards

Building Instruction for LEGO 21340 Tales of the Space Age

LEGO 21340 Frequently Asked Questions

Is LEGO 21340 still available?
LEGO has retired 21340 Tales of the Space Age, and no retailer in our price comparison currently sells it new. Its market value on secondary marketplaces is £59.77.
What is included in the LEGO Ideas Tales of the Space Age building set (21340)?
The LEGO Ideas Tales of the Space Age building set (21340) includes 4 connectible brick-built 3D postcards, each depicting scenes inspired by 1980s sci-fi myths, movies, books, and posters.
Can I display the postcards individually or together?
Yes, you can display the postcards individually or connect them in any order to display them together.
What are the dimensions of each buildable postcard?
Each buildable postcard measures over 5.5 in. (14 cm) high, 3.5 in. (9 cm) wide, and 1 in. (3 cm) deep.
Is this LEGO set suitable for group activities?
Yes, the set comes with separate building instructions for each postcard, making it an ideal group activity to enjoy with family or friends.

All LEGO Ideas sets from 2023

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