Ages 8+

Space Exploration Telescope (31378)

Name: Space Exploration Telescope
Brand: LEGO
SKU: 31378
Rating: 4.6 (4 reviews)

Prices last checked: 30 April 2026 at 18:01

LEGO.com RRP:

£29.99

LEGO.com

★4.6

(4 reviews)

🧱 278 pieces - : £0.11

Available From

Best Deal

£30.00

Price checked: 30 Apr 2026

View Deal →

LEGO.comOfficial

£29.99

Price updated: 26 Apr 2026

View on LEGO →

Building Instructions Brickset

Price Analysis

Lowest Price Ever

£29.99

at LEGO.com · Jan 2026

Average Price (12mo)

£29.99

Current vs Average

0.0%

Near average

Price Trend

Stable

Last 30 days

Best Month to Buy

February

Value Score

5.0/10

Price-per-piece vs theme avg

The lowest price we've recorded for Space Exploration Telescope is £29.99 at LEGO.com in January 2026. The current price is close to the 12-month average of £29.99. Historically, February tends to offer the best prices for this set.

Price History & Buying Verdict

VerdictGood time to buy

•The current best price of £30.00 is within 5% of the all-time low we've recorded (£29.99 at LEGO.com, January 2026).

We've been tracking the price of LEGO Creator 3-in-1 Space Exploration Telescope (278 pieces) for 102 days, recording 10 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 £29.99 at LEGO.com in January 2026.

The 12-month average sale price for set 31378 works out to £29.99 — that's 0% above the LEGO RRP of £29.99. The highest price we recorded across our tracked retailers was £30.00, giving a range of about £0.01 between the cheapest and most expensive observation.

Historically, February has produced the lowest average prices for Space Exploration Telescope, so if you're not in a hurry it's worth bookmarking the page closer to that window.

Want to see how LEGO Space Exploration Telescope (set 31378) compares against other sets? Browse the best-value LEGO sets or check the full price-history tracker.

Description

Space Exploration Telescope (31378) is a LEGO Creator 3-in-1 set with 278 pieces, with an RRP of £29.99. It's currently available from £30.00 at argos_uk. Prices have been stable over the last 30 days.

SpecificationsBoys and girls ages 8 and up can indulge their passion for science and space with this LEGO® Creator 3 in 1 Space Exploration Telescope (31378) building set. This detailed STEM toy offers 3 different building options with the same set of bricks. Kids can choose to build an adjustable telescope toy on a tripod with a solar system model featuring the sun and 8 planets that can be spun around. This can be rebuilt into an adjustable microscope toy or a UFO model with posable antennae and legs that flip out to display it. Each space toy includes a light brick (batteries included), which kids can activate by pushing a button to project images from the telescope onto a surface, illuminate images on the microscope or beam a light from underneath the UFO. There are 3 interchangeable decorated lenses, with images of a planet, a star and the Moon to project from the telescope or view inside the microscope. Please note models cannot be built simultaneously. Set contains 278 pieces.

Features

3 IN 1 STEM TOY – LEGO® Creator 3 in 1 Space Exploration Telescope (31378) building toy lets boys and girls ages 8 plus build and rebuild 3 different space and science toys with the same bricks
ENDLESS PRETEND PLAY OPTIONS – Kids can play out stories with 3 STEM building toys (models cannot be built simultaneously): a telescope toy with a solar system model, a microscope toy or a UFO model
LIGHT BRICK – Push a button on each space toy to activate a light brick (batteries included): the telescope projects images, the microscope illuminates images and the UFO shines a beam
3 LENSES TO PROJECT AND VIEW – LEGO® space playset has 3 interchangeable decorated lenses, a planet, a star and the Moon, to project from the telescope on to a surface or view inside the microscope
GIFT FOR KIDS – This great value LEGO® Creator 3 in 1 set is a space gift for kids, boys or girls ages 8 and up who love creative toys and imaginative play
A FUN WAY TO BUILD – Let the LEGO® Builder app guide kids on an intuitive building adventure, where they can save sets, track progress and zoom in and rotate models in 3D while they build
FEED YOUR KID’S PASSION – Every 3 in 1 set gives kids 3 different building options inspired by their biggest passions, including animals, vehicles and houses
DIMENSIONS – This 278-piece imagination toy set features a telescope toy measuring over 10.5 in. (27 cm) at its highest, 5 in. (12 cm) at its longest and 7.5 in. (19 cm) wide

Frequently Asked Questions about Space Exploration Telescope

What is the best price for LEGO Space Exploration Telescope (Set 31378)?

LEGO Space Exploration Telescope (Set #31378) is currently priced at £29.99 on LEGO.com. We continuously monitor prices across multiple UK retailers to find you the best deals.

How many pieces are in LEGO set 31378?

LEGO Space Exploration Telescope (Set #31378) contains 278 pieces. At the best available price of £30.00, that works out to approximately 10.8p per piece.

What age is LEGO Space Exploration Telescope suitable for?

LEGO Space Exploration Telescope (Set #31378) is recommended for ages 8+. This set is part of the LEGO Creator 3-in-1 theme. View all Creator 3-in-1 sets and deals.

Where can I find the building instructions for LEGO Space Exploration Telescope?

You can download the official building instructions for LEGO Space Exploration Telescope (Set #31378) 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 Space Exploration Telescope in the UK?

LEGO Space Exploration Telescope (Set #31378) is available from 1 UK retailer including argos_uk. Prices range from £30.00. It's also available directly from LEGO.com at £29.99.

What is the lowest price ever recorded for LEGO Space Exploration Telescope?

The lowest price we've recorded for LEGO Space Exploration Telescope (Set #31378) is £29.99 at LEGO.com in January 2026. That's 0% off the LEGO RRP of £29.99. Track the latest movements on our LEGO price history page.

Is LEGO Space Exploration Telescope good value for money?

Comparing piece-count to price across the LEGO Creator 3-in-1 theme, this set scores 5.0 / 10 for value. That works out to about 10.8p per piece. That's roughly in line with the Creator 3-in-1 theme average. Compare against other contenders on our best-value LEGO sets page.