Beginner
≈ 9 hSuggested range5 h 45 min – 13 h 15 min
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Disney · SET 43225
The Little Mermaid Royal Clamshell
A royal clamshell holds live-action Little Mermaid settings: Triton’s throne, Ariel’s treasures and Ursula’s cave.
- Pieces
- 1,808
- Release year
- 2023
- Theme
- Disney
- Set number
- 43225
- LEGO recommended age
- 18+
- Archived LEGO price
- 159.99 €
Retired from the LEGO Italy catalogue when checked on 23 October 2026. Availability can change. Check the store for the latest information.
Source: LEGO Italy · Price checked on 23 October 2026. Retired set: this is the price shown on the archived LEGO page, not a current offer or a verified launch price.
Official English name verified at: LEGO English catalogue ↗ · Checked on 24 October 2026.
TIME TO BUILD
How long does it take to build The Little Mermaid Royal Clamshell?
A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.
Editorial model estimate · no verified measured building time
Intermediate
≈ 6 hSuggested range3 h 45 min – 8 h 45 minExperienced
≈ 4 hSuggested range2 h 30 min – 6 hBased on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.
How we estimate times · sources and method
Curved shell, marine vegetation, layered settings and tiny details. The three central durations are model-specific editorial assessments. Planning ranges extend approximately from 65% to 145%, rounded to quarter-hours; they are not measured experience-level averages or guaranteed limits.
Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.
- LEGO Italy · The Little Mermaid Royal Clamshell ↗
This source documents the model’s features and components, not a timed build. No sufficiently verifiable individual building-time report has been identified for this set.
- LEGO building instructions · The Little Mermaid Royal Clamshell ↗
Set-specific instructions checked against the set number, piece count and year. The duration is an editorial assessment based on piece count, construction type, mechanisms and detail.
Checked: 23 ottobre 2026 · Method v1.0 · Limited reports; not a statistical average.
BUILT BY THE COMMUNITY
Yours could be the first building time.
0 reviewed solo building times.
No solo building times have been reviewed yet. You can still find editorial estimates under Suggested times.
Log your buildBuild your own story.
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Create a free account →BEYOND THE BRICKS
Did you know?
Inside the set
Three worlds in a shell
Throne rock, Ariel’s hideaway and Ursula’s lair combine in an open display.
LEGO sourceLive-action inspiration
Characters and setting follow the live-action film rather than only the animated classic.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
A live-action Ariel
Rob Marshall directed the 2023 version with Halle Bailey as Ariel.
Disney MoviesA dangerous bargain
Ariel’s wish to know the human world leads to Ursula’s bargain. Treasure refuge and cave show opposing sides of her choice.
Disney MoviesWritten by HowLongToBuild · Sources are linked with each story · Checked on 23 October 2026. Historical facts and story details refer to the context described.
THE COMMUNITY’S EXPERIENCE
What was it like to build?
Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.
No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.
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Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.
No approved tips yet.
Sign in to contributeSET THE MOOD
A soundtrack for your build
The Little Mermaid Royal Clamshell · Selected for the subject and atmosphere
A fairytale orchestra, with scene changes and small contrasts, accompanies castles, figures and imagined stories. We choose its theatrical character, not because it is the set’s soundtrack.
OUR PICK
Tchaikovsky: The Nutcracker
Mariinsky Orchestra · Valery Gergiev
Orchestral · festive and fairytale-likeTry a different atmosphere
ANOTHER MOOD
Debussy – Rameau
Víkingur Ólafsson
Piano · colour and small contrastsA build to spread over several sessions: choose the more understated option when you want the instructions to take centre stage. The music does not set your pace.
Editorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →
Report a problem with this set →
YOUR NEXT BUILD
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