How many pieces does the LEGO Mermaid Gabby's Aquarium Adventure (11204-1) have?

The LEGO Mermaid Gabby's Aquarium Adventure set (11204-1) contains 114 pieces. It was released in 2025 as part of the LEGO Gabby's Dollhouse theme.

How can I find missing parts for LEGO set 11204-1?

On BrickMissing you can check which parts from the LEGO Mermaid Gabby's Aquarium Adventure (11204-1) you already own. Add your LEGO collection and we'll show exactly which of the 114 pieces you're missing and which you already have.

Can I build the LEGO Mermaid Gabby's Aquarium Adventure with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 114 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Mermaid Gabby's Aquarium Adventure from?

The LEGO Mermaid Gabby's Aquarium Adventure (11204-1) belongs to the LEGO Gabby's Dollhouse theme. You can browse all Gabby's Dollhouse sets on BrickMissing to find more sets from this theme.

Mermaid Gabby's Aquarium Adventure - View 9

Mermaid Gabby's Aquarium Adventure

11204-1 Gabby's Dollhouse 2025 114 parts 20.3% repair risk Easy

Explore an aquatic realm with LEGO Gabby's Dollhouse 11204-1 Mermaid Gabby's Aquarium Adventure, a 114-piece set from 2025. This scene presents the Gabby minidoll in her mermaid outfit, joined by MerCat and a Jellyfish figure. The set constructs a vibrant underwater environment, detailing it with shells, various plants, and sea life, ready for discovery. Characters can utilize a slide for descent or MerCat can occupy a bubble sphere designed for her to 'float'. An interactive coral element pivots, revealing a hidden treasure chest. The model’s assembly benefits from a large Starter Brick, simplifying the initial construction of its structures. This set accurately portrays an adventure from DreamWorks Animation’s Gabby’s Dollhouse: The Movie.

Parts Inventory

🧱 114 parts

Part	Color	Qty	LEGO price each
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	Tan	1×	€0,06 View at LEGO → View
Brick Arch 1 x 3 x 3 [Gothic] 13965	Medium Azure	4×	€0,21 View at LEGO → View
Brick Arch 1 x 3 x 3 [Gothic] 13965	Tan	4×	€0,21 View at LEGO → View
Slope 45° 2 x 1 Triple with Inside Stud Holder 15571	Black	2×	€0,10 View at LEGO → View
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) 15573	Dark Pink	1×	€0,06 View at LEGO → View
Rock - Heart Jewel with Shaft 15745	Trans-Dark Pink	1×	€0,21 View at LEGO → View
Brick Arch 1 x 8 x 2 Raised 16577	Tan	2×	€0,35 View at LEGO → View
Brick Arch 1 x 3 x 2 Inverted [Inside Bow] 18653	Medium Azure	2×	€0,16 View at LEGO → View
Plate Special Round 2 x 2 with Center Stud (Jumper Plate) 18674	Dark Pink	2×	€0,07 View at LEGO → View
Windscreen 4 x 4 x 1 2/3 Canopy Half Sphere with Handle 18990	Trans-Light Blue	1×	€0,64 View at LEGO → View
Bar Holder with Hole and Bar Handle 23443	Black	1×	€0,07 View at LEGO → View
Tile Special 1 x 2 Grille with Bottom Groove 2412b	Dark Azure	1×	€0,06 View at LEGO → View

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Repairability

Can you fix Mermaid Gabby's Aquarium Adventure if a piece goes missing?

20.3%High repair risk

easy to fixguard this box

12 of the 59 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

18.1%

All sets

6.7%

Hardest to replace

Plate Special 8 x 8 x 2/3 · Black · only this setAnimal, Sea Life Set, Octopus · Vibrant Yellow · only this setAnimal, Sea Life Set, Clam Shell Large · Vibrant Yellow · only this set

How we calculate this →

Build DNA

Parts inventory insights for Mermaid Gabby's Aquarium Adventure

114 pieces puts this build -40% against the average Gabby's Dollhouse set and -82% against the average 2025 release.

Vs average Gabby's Dollhouse set

-40%-76 parts

This set114

Average set190

Average Gabby's Dollhouse set: 190 pieces across 11 other sets.

Vs average 2025 set

-82%-523 parts

This set114

Average set637

Average 2025 set: 637 pieces across 562 other sets.

Color profile

18different colors

Dominant color

Tan

Tan7x

32%

Medium Azure6x

27%

Black3x

14%

Dark Pink3x

14%

Unique parts

0.4 pieces per unique type

Repeat factor

Average pieces per unique type.

Most used part

Brick Arch 1 x 3 x 3 [Gothic]

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

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