Lego® Gabby's Dollhouse 11204 Mermaid Gabby's Aquarium Adventure

Current best price

LEGO 11204 is currently available from £18.00 incl. shipping at Amazon.co.uk. Only one retailer in our comparison stocks it.

Updated 2 November 2026 at 09:22

LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (1/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (1/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (2/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (3/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (4/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (5/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (6/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (7/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (8/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (9/10)
LEGO® Gabby's Dollhouse Mermaid Gabby's Aquarium Adventure 11204 (10/10)

Lego 11204 price comparison: where is it cheapest?

Prices incl. shipping to the UK ·

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 Gabby's Aquarium Adventure with the set number 11204 is part of the LEGO Gabby's Dollhouse theme and is recommended for ages 4+. It was released in August 2025. It includes 3 minifigures. The model has 103 pieces, and we estimate it takes around < 1 hour to build. 11 Brickfact users have this set in their collection.
The set weighs about 0.314 kg. The box measures 26.2 x 14.1 x 6.1 cm. The recommended retail price is £17.99.
Our Brickfact Lego price comparison compares the prices of 1 shop for this set. It is currently cheapest at Amazon.co.uk for £18.00 including shipping. That is £0.17 per piece. Unfortunately, the set is currently not available below its recommended retail price.
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 £23.27. You save around £5.27 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 1.29: the Part-Out-Value divided by the current best price on Brickfact.

Lego 11204 product data

Set Information

Set ID
11204
Pieces
103
Building Time
< 1 hour
Age Range
4+
Minifigures
3

Availability

Release
08/2025
Retiring Status
Retired (07/2026)

Price Information

RRP
£17.99
Insiders Points (for purchase at Lego)
144
Part Out Value
£23.27
i

Packaging

Weight
0.314 kg
EAN (GTIN13)
5702017813455

Popularity with Brickfact users

users have this set
11

11 Brickfact users have Mermaid Gabby's Aquarium Adventure in their collection.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 2 November 2026.

Lego 11204 price trend

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

Current market value
£12.89
Growth vs. RRP
−28.4 % £17.99
Range
£10.90 – £12.89
Average
£11.75

Loading price history…

Minifigures from 11204 Mermaid Gabby's Aquarium Adventure

The Mermaid Gabby's Aquarium Adventure set includes 3 different minifigures, 2 of which are unique to this set. The combined value of the minifigures is £8.78, which is ~49% of the RRP of this set.
x1
Thumbnail of minifigure gdh004
MerCat
Gabby's Dollhouse
time-logo
2023
#gdh004
£1.04
i
4 sets
x1
Thumbnail of minifigure gdh016
Gabby - Mermaid
Gabby's Dollhouse
time-logo
2025
#gdh016
£4.53
Unique
x1
Thumbnail of minifigure gdh017
Kitty Jellyfish
Gabby's Dollhouse
time-logo
2025
#gdh017
£3.20
Unique

Official Set Description for LEGO 11204 Mermaid Gabby's Aquarium Adventure

Mermaid Gabby’s Aquarium Adventure (11204) is a make-believe toy for kids aged 4 and over who are fans of sea creatures, aquarium animals and DreamWorks Animation’s Gabby’s Dollhouse: The Movie.

This LEGO® Gabby’s Dollhouse playset is packed with vibrant features and familiar characters, including a Gabby minidoll in her mermaid outfit, and MerCat and Jellyfish figures. Kids can join Gabby and her pals to explore a colourful underwater environment filled with shells, plants and sea life. There’s lots to discover, including a slide, a giant bubble that MerCat can 'float' in, and coral that moves to reveal a hidden treasure chest. The set comes with colourful pictorial instructions, a large Starter Brick and separate bags containing 1 buildable model per bag to make creative construction fast and fun for little builders.

LEGO sets for ages 4 and over are the perfect way for adults to share in the building fun with kids. Set contains 103 pieces.

  • Sea creature toy for kids aged 4 and over – Girls and boys who enjoy DreamWorks Animation’s Gabby’s Dollhouse can join their favourite kitty pals for undersea fun with Mermaid Gabby’s Aquarium Adventure
  • Gabby’s Dollhouse: The Movie imaginative play toy – This underwater make-believe toy has a Gabby minidoll in a mermaid outfit, MerCat and Jellyfish figures plus a Starter Brick for speedy assembly
  • Kids’ build-and-play toy – There’s lots to discover, including shells, plants, sea life, a slide, a giant bubble that the characters can ‘float’ in, and coral that moves to reveal a treasure chest
  • LEGO® Gabby’s Dollhouse playset – Kids can recreate stories with Gabby and role-play aquarium adventures of their own
  • Expand the fun – Kids can supplement this toy with set 11205 (sold separately) to create the three expansive worlds depicted in the movie
  • Preschool building toy – A wide range of engaging developmental LEGO® sets for kids aged 4 and over introduces a universe of movie favourites, TV characters and everyday heroes
  • Set contains 103 pieces – This versatile LEGO® playset measures over 15 cm (5.5 in.) high, 23 cm (9 in.) wide and 7 cm (2.5 in.) deep

Building Instruction for LEGO 11204 Mermaid Gabby's Aquarium Adventure

LEGO 11204 Frequently Asked Questions

How much does LEGO 11204 Mermaid Gabby's Aquarium Adventure cost?
The lowest price in the Brickfact price comparison is currently £18.00 incl. shipping at Amazon.co.uk. The RRP is £17.99.
Where can I buy LEGO 11204 cheapest?
Only one retailer in the Brickfact price comparison currently stocks LEGO 11204: Amazon.co.uk (£18.00).
Is LEGO 11204 still available?
LEGO has retired 11204 Mermaid Gabby's Aquarium Adventure. New copies are still available at 1 retailers in our price comparison while stocks last.

All LEGO Gabby's Dollhouse sets from 2025

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