Beginner
≈ 7 hSuggested range4 h 30 min – 10 h 15 min
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Dreamzzz · SET 71500
Nightmare Shark Submarine
A fantasy shark transforms into submarine or hammerhead battleship, with mini craft, prison and modular weapons.
- Pieces
- 1,413
- Release year
- 2025
- Theme
- Dreamzzz
- Set number
- 71500
- LEGO recommended age
- 9+
- LEGO retail price · Italy
- 139.99 €
Available at LEGO Italy when checked on 23 October 2026. Availability can change. Check the store for the latest information.
Retail price reported by the LEGO source for the stated market. Check the store for current price and availability; this does not establish the launch price. LEGO ↗ · Reference checked on 23 October 2026
Official English name verified at: LEGO English catalogue ↗ · Checked on 24 October 2026.
TIME TO BUILD
How long does it take to build Nightmare Shark Submarine?
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
≈ 4 h 30 minSuggested range2 h 45 min – 6 h 45 minExperienced
≈ 3 hSuggested range1 h 45 min – 4 h 30 minBased 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
Shaped body, fins, cockpit and modules. One configuration, not both. 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 · Nightmare Shark Submarine ↗
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 · Nightmare Shark Submarine ↗
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.
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How much display space does it need?
Model or component measured by LEGO
- Height
- ≈ 25 cm
- Width
- ≈ 24 cm
- Depth / length
- ≈ 51 cm
These measurements refer to the model or component in the original specification below. Other builds, poses or arrangements may need additional space.
Check your shelf space
Which model was measured? · original Italian specification
Dimensioni: set include 1.413 pezzi e misura 25 cm di altezza, 51 cm di lunghezza e 24 cm di larghezzaApproximate assembled-model measurements, not packaging dimensions. Allow extra room for handling, moving parts and the display stand. The comparison uses the measured model’s overall footprint, allows a 90° rotation and does not assess stability or shelf load. Source LEGO ↗ · 2026-10-29
BEYOND THE BRICKS
Did you know?
Inside the set
Two alternative transformations
Reconfigure the shark structure into one of the two vehicles.
LEGO sourceA prison inside
A cell, opening cockpit, detachable craft and mouth missiles fill the model.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
Real sharks have no bones
Shark skeletons are cartilage, the tissue also found in our ears.
Read the full story
Shark skeletons use cartilage, strengthened with calcium salts in some areas. Flexible internal support is therefore present without bone. Teeth differ from the cartilaginous framework despite being prominent within the same familiar biting silhouette.
Teeth tell history
Cartilage preserves less easily than hard material. Fossil teeth help reconstruct shark evolution.
Read the full story
Cartilage preserves less readily than teeth, making fossil teeth important to shark history. Different material durability shapes surviving evidence, so palaeontologists do not receive an equally complete record of every part of an ancient animal.
Expanded stories updated on 29 October 2026
Written by HowLongToBuild · Sources are linked with each story · Checked on 23 October 2026. Historical facts and story details refer to the context described.
BEYOND THE BRICKS
Keep the story going
Films, series, games, books and music connected to this model or its universe.
LEGO DREAMZzz
Another adventure in the same universe, for before or after your build.
Title search on JustWatch: choose the result matching the title and year above.Streaming: Italian catalogue. Check availability, languages and terms on the external service. Searches are labelled; book results may include different editions.
Suggest a work or report a wrong connection →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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Building tips from the community
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
· Selected for the subject and atmosphere
La mer’s orchestral surges and suspended moments complement water and movement. This is a musical reading of a landscape, with quieter alternatives available.
OUR PICK
Debussy: La Mer & Nocturnes
André Previn · London Symphony Orchestra
Narrative and cinematicEditorial 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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