The Mermaid Gabby's Aquarium Adventure (11204-1) is a LEGO Gabby's Dollhouse set that was released in August 2025 and is due to retire on July 2026.
This LEGO set has 103 pieces and had a RRP of $22.99 (£17.99 / 19.99€) which equates to a price per piece of 0.22c (0.17p / 0.19€). It has gone down in value by -15.0% and now has a value of $19.55 based on average sale price over the last 6 months.
This set contains 3 minifigures with a combined value of $13.53. 2 of the minifigures in this set are exclusive, meaning they don't appear in any other LEGO sets.
We have recorded 1 sales of the Mermaid Gabby's Aquarium Adventure set since Feb 26. The chart below shows the number of recorded sales per month, which can help indicate the popularity and availability of this set on the secondary market.
The current value of Mermaid Gabby's Aquarium Adventure is $19.55
The 3 minifigures in this set make up 69% of the total set value.
The Gabby - Mermaid minifigure is the most valuable minifigure in this set who contributes 37% of the set value .
Name: Mermaid Gabby's Aquarium Adventure
Theme: Gabby's Dollhouse
Set number: 11204-1
Status: Active
Pieces: 103
Minifigures: 3
Released: August 2025
Retired:
July 2026
Shelf life: 8 months
Confidence: Low
Current value: $19.55
Increase from RRP: -15.0%
The Mermaid Gabby's Aquarium Adventure has 103 pieces and is ranked 7468 on the list of biggest LEGO sets ever made.
The most common colour in this set is Tan
The most common part in this set is Arch 1 x 3 x 3