Mermaid Gabby's Aquarium Adventure (11204-1)

LEGO set 11204-1 Mermaid Gabby's Aquarium Adventure - Image 1

Price Comparison

No retailers currently stock Mermaid Gabby's Aquarium Adventure in The United States.

Set details

Name: Mermaid Gabby's Aquarium Adventure
Set number: 11204-1
Year: 2025
Theme: Gabby's Dollhouse
Number of parts: 114
Number of part types: 59
Age rating: 4+
Retail price: $22.99
Retirement date: 31-07-2026

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.

Price History

Track how the lowest available price for set 11204-1 in The United States has changed over time.

Parts

Browse all 114 parts in set 11204-1 with individual pricing from BrickLink or Brick Owl.

Price source:

Value of parts: $22.85
Pricing information known of 57/59 parts.

	Color	Quantity	Average price	Total	Value
Plate Special 1 x 2, Top Clip [Open O]	Blue	3	$0.61	$1.82	3 x $0.61 $1.82
Plate 8 x 8 with Rounded End	Blue	2	$0.83	$1.67	2 x $0.83 $1.67
Plate Round Corner 2 x 2 with 1 x 1 Cutout	White	2	$0.73	$1.45	2 x $0.73 $1.45
Panel 1 x 6 x 5 with Under Sea, Coral Coral, Seahorse, Lime Squid, Rocks, Bubbles print	Trans-Light Blue	1	$1.35	$1.35	1 x $1.35 $1.35
Tube, Slide Straight	Trans-Bright Green	1	$1.20	$1.20	1 x $1.20 $1.20
Animal, Sea Life Set, Octopus	Vibrant Yellow	1	$1.18	$1.18	1 x $1.18 $1.18
Animal, Sea Life Set, Star Fish	Vibrant Yellow	2	$0.52	$1.03	2 x $0.52 $1.03
Animal, Sea Life Set, Seahorse with Bar	Vibrant Yellow	2	$0.49	$0.98	2 x $0.49 $0.98
Animal, Sea Life Set, Fish with Bar	Vibrant Yellow	2	$0.42	$0.85	2 x $0.42 $0.85
Animal, Sea Life Set, Snail with Bar	Vibrant Yellow	2	$0.38	$0.77	2 x $0.38 $0.77
Animal, Sea Life Set, Clam Shell Small	Vibrant Yellow	2	$0.37	$0.74	2 x $0.37 $0.74
Animal / Plant, Coral / Sea Weed	Coral	2	$0.37	$0.74	2 x $0.37 $0.74
Brick Sloped 65° 2 x 2 x 2 with Bottom Tube	Tan	2	$0.32	$0.63	2 x $0.32 $0.63
Brick Arch 1 x 3 x 3 [Gothic]	Medium Azure	4	$0.13	$0.53	4 x $0.13 $0.53
Slide Curved Left 90°	Medium Azure	1	$0.52	$0.52	1 x $0.52 $0.52
Brick Arch 1 x 4 x 2	Tan	2	$0.22	$0.45	2 x $0.22 $0.45
Tile 1 x 2 with Groove	Dark Azure	4	$0.11	$0.42	4 x $0.11 $0.42
Crown / Flower / Egg Shell Half	Medium Lavender	2	$0.19	$0.37	2 x $0.19 $0.37
Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder	Blue	2	$0.17	$0.34	2 x $0.17 $0.34
Brick Round 2 x 2 Dome Top, Hollow Stud	Opal Trans-Dark Pink	2	$0.16	$0.32	2 x $0.16 $0.32
Brick Round 2 x 2 Dome Top, Hollow Stud	Trans-Light Blue	3	$0.11	$0.32	3 x $0.11 $0.32
Brick 1 x 4	Tan	2	$0.15	$0.29	2 x $0.15 $0.29
Brick Arch 1 x 3 x 3 [Gothic]	Tan	4	$0.07	$0.26	4 x $0.07 $0.26
Windscreen 4 x 4 x 1 2/3 Canopy Half Sphere with Handle	Trans-Light Blue	1	$0.25	$0.25	1 x $0.25 $0.25
Animal Body Part / Plant, Tail / Trunk / Tentacle / Tongue / Vine / Tree Branch (Long Tip)	Dark Pink	2	$0.12	$0.24	2 x $0.12 $0.24
Treasure Chest Bottom with Rear Slots, No Groove	Medium Lavender	1	$0.22	$0.22	1 x $0.22 $0.22
Bar Holder with Hole and Bar Handle	Blue	1	$0.22	$0.22	1 x $0.22 $0.22
Plant, Flower, Peony Rose with 2 Layers	Trans-Yellow	2	$0.11	$0.21	2 x $0.11 $0.21
Brick Arch 1 x 8 x 2 Raised	Tan	2	$0.11	$0.21	2 x $0.11 $0.21
Plate 2 x 8	Tan	2	$0.11	$0.21	2 x $0.11 $0.21
Brick Round 4 x 4 Centre Hole	Tan	1	$0.20	$0.20	1 x $0.20 $0.20
Brick Curved 1 x 3 x 2 Inverted [Inside Bow]	Medium Azure	2	$0.09	$0.19	2 x $0.09 $0.19
Plate 2 x 4	Light Aqua	2	$0.09	$0.19	2 x $0.09 $0.19
Brick Curved 1 x 2 x 1 No Studs	Medium Azure	2	$0.08	$0.16	2 x $0.08 $0.16
Brick 1 x 1	Medium Azure	4	$0.04	$0.16	4 x $0.04 $0.16
Plant, Plate 1 x 1 Round with 3 Leaves	Lime	3	$0.05	$0.16	3 x $0.05 $0.16
Treasure Chest Lid, Flat with 2 Studs	White	1	$0.16	$0.16	1 x $0.16 $0.16
Plate 4 x 4	Tan	1	$0.16	$0.16	1 x $0.16 $0.16
Brick Curved 2 x 1 No Studs [1/2 Bow]	Tan	1	$0.13	$0.13	1 x $0.13 $0.13
Tile 1 x 4 with Groove	Medium Azure	2	$0.07	$0.13	2 x $0.07 $0.13
Cone 1 x 1 [Top Groove]	Trans-Light Blue	2	$0.05	$0.11	2 x $0.05 $0.11
Rock - Heart Jewel with Shaft	Trans-Dark Pink	1	$0.11	$0.11	1 x $0.11 $0.11
Brick 2 x 3	Tan	1	$0.11	$0.11	1 x $0.11 $0.11
Brick 1 x 2 x 2 with Inside Stud Holder	Tan	2	$0.05	$0.11	2 x $0.05 $0.11
Plate 1 x 2	Light Aqua	2	$0.05	$0.11	2 x $0.05 $0.11
Plant, Flower 2 x 2 Leaves - Angular	Bright Green	2	$0.05	$0.11	2 x $0.05 $0.11
Tile 1 x 2 with Groove	Blue	1	$0.09	$0.09	1 x $0.09 $0.09
Brick Curved 2 x 1 with Inverted Cutout	Tan	1	$0.09	$0.09	1 x $0.09 $0.09
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	Dark Pink	1	$0.09	$0.09	1 x $0.09 $0.09
Plate 2 x 3	Medium Azure	2	$0.04	$0.08	2 x $0.04 $0.08
Plate 2 x 6	Medium Azure	1	$0.08	$0.08	1 x $0.08 $0.08
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)	Dark Pink	2	$0.04	$0.08	2 x $0.04 $0.08
Plate 1 x 4	Light Aqua	1	$0.07	$0.07	1 x $0.07 $0.07
Tile Special 1 x 2 Grille with Bottom Groove	Dark Azure	1	$0.07	$0.07	1 x $0.07 $0.07
Brick Curved 1 x 2 x 1 No Studs	Light Aqua	1	$0.05	$0.05	1 x $0.05 $0.05
Tile Special 2 x 2 with Top Pin [Squared Holes]	Black	1	$0.05	$0.05	1 x $0.05 $0.05
Plate Special 2 x 2 with Groove and Center Stud (Jumper)	Medium Azure	1	$0.03	$0.03	1 x $0.03 $0.03

Missing pricing information on the following items.

Part		Color	Quantity
	Animal, Sea Life Set, Clam Shell Large	Vibrant Yellow	1
	Plate Special 8 x 8 x 2/3 with Four 1 x 4 Recessed Edges	Blue	1

Minifigures included in set 11204-1.

Price source:

Minifigure		Quantity	Value
	Gabby, Mermaid Tail fig-016648, gdh016, BOID 730580	1	$7.92
	Kitty Jellyfish fig-016650, gdh017, BOID 1270791	1	$4.57
	MerCat fig-014171, gdh004, BOID 1450262	1	$2.91
Total minifigure value:			$15.40

Compare the value of buying Mermaid Gabby's Aquarium Adventure as a complete set versus the total value of all parts individually.

Value Breakdown
Parts value	$22.85
Minifigure value	$15.40
Total inventory value	$38.25

BrickLink

Ratio: what the parts sell for, over what the set sells for. Above 1× the parts are worth more than the set.

New · 6 months ?

Set ? · parts $22.13

Used · 6 months ?

Set ? · parts $9.58

Brick Owl

New · Current 1.94×

Set $23.05 · parts $44.74

New · 6 months ?

Set ? · parts $22.35

New · 1 year ?

Set ? · parts $24.10

Used · Current ?

Set ? · parts $37.58

Items sold, 6 months, new, both marketplaces ?

BrickLink
Condition	Timespan	Avg price	Items sold	Inventory value	Ratio
New	6 months	?	?	$22.13	?
Used	6 months	?	?	$9.58	?

Brick Owl
Condition	Timespan	Avg price	Inventory value	Ratio
New	Current	$23.05	$44.74	1.94
	6 months	?	$22.35	?
	1 year	?	$24.10	?
Used	Current	?	$37.58	?

Combined 6 Month Sales Volume (New)
Total items sold	?

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

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Brick Owl and eBay marketplace offers.

BrickLink history of 0 sales with 0 total item quantity. Item condition: New.

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