Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204)

Author: lego_official

LEGO official set 11204 Mermaid Cat and Gabby's Aquarium Adventure building instructions. Series: LEGO® Gabby's Dollhouse. Pieces: 103. Release year: 2025. Age: 4+. 2 instruction manuals in total.

Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) cover

Brand
LEGO
Set number
11204
Series
LEGO® Gabby's Dollhouse
Category
Scenery
Pieces
103
Difficulty
1 / 5
Released
2025
Instruction pages
169 pages

About this set

LEGO 11204 Mermaid Cat and Gabby's Water Aquarium Adventure sits in the LEGO Gabby's Dollhouse line with a 103-piece count and a 1/5 difficulty rating, making it one of the lighter scene sets in the range. The box labels it GABBY'S DOLLHOUSE THE MOVIE with a mermaid theme, and the palette leans on blue, pink, green and yellow for a bright reef look. The model stands on a base, with an archway at the front leading to a shell seat and coral details, while a slide runs down into the scene with the mermaid cat minifigure as the focal character. For build order, put the base and archway together first to lock the outline, then add the coral and shell seat, and attach the slide last, since its connection points cluster around the arch and base and going back is easier before the details go on. At 103 pieces the clutch is simple and the steps are short, so it suits younger builders or anyone after the mermaid cat minifigure; as a small display set it stays compact on a desk.

  • Category: Scenery
  • Difficulty: 1 / 5
  • Parts: 103
  • Brand: LEGO
  • Set number: 11204
  • Views: 6
  • Likes: 0

Instruction pages

Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 1Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 2Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 3Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 4Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 5Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 6Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 7Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 8Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 9Mermaid Cat and Gabby's Aquarium Adventure (LEGO 11204) building instructions page 10