Dive Into Undersea Magic — LEGO Gabby’s Dollhouse Mermaid Gabby’s Aquarium Adventure (11204), New in Box

Dive into undersea magic with Mermaid Gabby’s Aquarium Adventure from LEGO Gabby’s Dollhouse. Designed specifically for preschoolers aged 4 and up, this delightful 103-piece building set features a colorful, interactive aquarium packed with sea life, a slide, a hidden treasure chest beneath moving coral, and a giant bubble MerCat can float in. The set comes with a helpful Starter Brick and separate, pre-sorted bags that make construction fast and fun, building confidence in young creators. Complete with a beautiful Mermaid Gabby mini-doll, MerCat, and a cute Kitty Jellyfish, this sealed playset is the perfect gift to inspire hours of creative, narrative-driven playtime — and you’ll find it right at home alongside everything else in my Lifestyle, Hobbies & Entertainment and Gifts & Special Finds collections.

Product Features & Specs

Interactive Undersea Play: Features a colorful toy aquarium with a slide, a giant bubble chamber, and coral that slides open to reveal a hidden treasure chest.
Popular Character Figures: Includes a Mermaid Gabby mini-doll in her mermaid outfit, plus MerCat and a Kitty Jellyfish for immediate roleplay.
Designed for Young Builders: Incorporates a large Starter Brick and simplified pictorial guides to build confidence in children transitioning to independent building.
Skill-Building Learning: Encourages matching, fine motor control, imaginative storytelling, and cooperative family play.
Digital Building Companion: Compatible with the LEGO Builder App — zoom, rotate sets in 3D, and track progress.
Net Piece Count: 103 Pieces.
Model Number / MPN: 11204 (Item: 6526215).
GTIN/UPC: 673419404082.
Recommended Age: 4 Years and Up.
Materials: High-quality, durable, non-toxic ABS plastic.

Safety Warning

Choking Hazard: Contains small parts and a small ball. Not for children under 3 years.

Box Contents

103 × LEGO Building Bricks and Accessory Elements
1 × Mermaid Gabby Mini-Doll
1 × MerCat Figure
1 × Kitty Jellyfish Figure
1 × Building Instruction Manual

Sourcing & Condition

New in Box. This is a genuine, factory-sealed LEGO Gabby’s Dollhouse set 11204 in brand-new condition. The original retail cardboard box is in pristine, shelf-ready condition with crisp edges, flat faces, and no visible dents, stickers, or tears. All contents are complete and untouched.

The More4less Outlet Promise

Every product page includes at least one real photo taken by Chad of the exact item you will receive. Additional lifestyle images may be AI-generated to show real-world use.

100% On-Site Kentucky Stock:
We do not drop-ship. Every item is physically stored, inspected, and fulfilled directly from our Burlington, Kentucky warehouse. This eliminates the mystery of overseas third-party sellers who never see the product before shipping.

Owner-Inspected Security:
Chad personally pulls and inspects every order. During packing, he photographs your exact item alongside its USPS tracking label. While postal carriers control the final leg of delivery, Chad provides photo documentation to help resolve any unforeseen issues.

Lightning-Fast Fulfillment:
Daily order cut-off is 7:00 PM EST (Mon–Fri). Orders placed before cut-off ship the same day. All orders ship via USPS Ground Advantage — insured, trackable, and always free.

Shipping Policy

Handling Time: 0–1 business day
Transit Time: 2–5 business days
Shipping Cost: $0.00 (always free)
Service Area: Contiguous United States
Quality Assurance: Every shipment is photographed with its matching tracking waybill.

Support a Small Business

More4less Outlet is a true one-person operation. Every order supports Chad’s mission to provide an online store where customers feel valued — not like another transaction.

First Sale Doctrine:
This item is lawfully resold under 17 U.S.C. § 109. More4less Outlet is not affiliated with the LEGO Group or DreamWorks Animation.