Mermaid Roller Coaster Ride

Lego^® Friends 42703 Mermaid Roller Coaster Ride

Name: LEGO® Friends Mermaid Roller Coaster Ride 42703
Brand: LEGO
SKU: 42703
Availability: InStock

Current best price

LEGO 42703 is currently available from £74.99 incl. shipping at Amazon.co.uk. 17% below RRP (£89.99). 3 retailers compared.

View the deal at Amazon.co.uk Compare all 3 offers

Updated 2 November 2026 at 01:37

LEGO® Friends Mermaid Roller Coaster Ride 42703 (1/14)

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Lego 42703 price comparison: where is it cheapest?

Prices incl. shipping to the UK · Prices updated 2 November 2026 at 01:37

Amazon.co.ukBest price

Brickfact may earn a commission when you buy through a merchant link. Commissions do not determine the order of offers. How Brickfact compares prices

iFurther information

The Lego set Mermaid Roller Coaster Ride with the set number 42703 is part of the LEGO Friends theme and is recommended for ages 8+. It was released in June 2026. It includes 5 minifigures. The model has 864 pieces, and we estimate it takes around 2 hours to build.

The set weighs about 1.554 kg. The box measures 54 x 28.2 x 7.9 cm. The recommended retail price is £89.99.

Our Brickfact Lego price comparison compares the prices of 3 shops for this set. It is currently cheapest at Amazon.co.uk for £74.99 including shipping. That is £0.09 per piece. With this offer you save £15.00 off the recommended retail price, a discount of 17%.

If you buy the set from the official Lego store, you also earn 720 Insiders points. You can exchange them for vouchers for future purchases.

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 £172.58. You save around £97.59 if you buy the complete set at Amazon.co.uk instead of the individual parts on bricklink.com. The current best offer therefore has a POV rate of 2.3: the Part-Out-Value divided by the current best price on Brickfact.

Lego 42703 product data

Set Information

Set ID

42703

Theme

Friends

Pieces

864

Building Time

2 hours

Age Range

Availability

Release

06/2026

Retiring Status

Begin of Life (12/2027)

Price Information

RRP

£89.99

Insiders Points (for purchase at Lego)

720

Part Out Value

£172.58

Packaging

Weight

1.554 kg

EAN (GTIN13)

5702018060605

Lego 42703 price history: how has the price changed?

Brickfact has been recording retailer prices since 12/10/2026. Best price so far: £89.99 (21 days ago).

Cheapest current offer in the comparison: Amazon.co.uk at £74.99. Amazon offers are not part of the price history.

Current best price: £89.99
Best price since 12/10/2026: £89.99 21 days ago

Lowest price per retailer (since 12/10/2026)

Since 12/10/2026, Lego.co.uk was the cheapest on 22 of 22 recorded days.

Retailer	Current	Lowest price	Date
Lego.co.uk		£89.99	02/11/26
True Toys	£89.99	£89.99	02/11/26

As of: 02/11/2026, 00:41 UTC

Lowest price per day that Brickfact recorded at the retailers in the price comparison, including shipping where known – as in the comparison above. Amazon offers are not included in the price history.

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Lego 42703 market value

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

Current market value: £55.59
Market value vs. RRP: −38.2 % £89.99
Range: £55.59 – £68.68
Average: £60.32

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Building Instruction for LEGO 42703 Mermaid Roller Coaster Ride

Part Lists for LEGO 42703 Mermaid Roller Coaster Ride

Part list on Bricklink.com

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Part list on Rebrickable.com

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Part list on Brickset.com

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LEGO 42703 Frequently Asked Questions

How much does LEGO 42703 Mermaid Roller Coaster Ride cost?

The lowest price in the Brickfact price comparison is currently £74.99 incl. shipping at Amazon.co.uk. That is 17% below the RRP of £89.99.

Where can I buy LEGO 42703 cheapest?

Brickfact compares 3 retailers. The cheapest offers: Amazon.co.uk (£74.99), Lego.co.uk (£89.99), True Toys (£89.99).

Is LEGO 42703 still available?

Yes. LEGO 42703 Mermaid Roller Coaster Ride is currently available at 3 retailers in our price comparison.

When was LEGO 42703 cheapest?

Since tracking began on 12/10/2026, the lowest shop price recorded by Brickfact for LEGO 42703 was £89.99 on 12/10/2026 at Lego.co.uk, including shipping. Amazon prices are not included.