Set Details
- Set Number
- 71837
- Name
- NINJAGO City Workshops
- Theme
- Ninjago
- Year
- 2025
- Pieces
- 3,247
- Complexity
- Epic
- Build Time
- 16+ hours
- Ages
- 18+
- Type
- Both play and display
About LEGO NINJAGO City Workshops
LEGO NINJAGO City Workshops (set #71837) is one of the larger LEGO sets, requiring dedication and space with 3,247 pieces from the Ninjago theme, released in 2025. The Ninjago line features ninja-themed action sets with spinners, mechs, and dragons. At 3,247 pieces, this is a epic-level build with an estimated build time of 16+ hours, suitable for ages 18+.
Set Highlights
- 3,247 pieces across multiple numbered bags — staged building keeps the process organized.
- Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
- Versatile build — display-worthy when complete, durable enough for active play.
Who Is This Set For?
Gift for Ages 18+
The epic difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 18+ age range.
Weekend Build Project
3,247 pieces with an estimated 16+ hours fits comfortably into a focused afternoon or weekend session.
Expanding a Ninjago Collection
A solid addition for collectors building out their Ninjago shelf. Introduces parts and builds that complement other sets from the same line.
Build Tips
Open bags one numbered sequence at a time — LEGO orders them to match the build stages and keeps loose piece counts manageable.
Budget 16+ hours across multiple sessions rather than one sitting. Fatigue leads to missed connections that are hard to trace later.
For active play sets, key connection points (hinges, turntables, clip joints) can loosen over time — a small dab of LEGO's own tube clutch lubricant on the stud resolves most looseness without damage.
Finding Instructions
With 3,247 pieces, set #71837 comes with a thick instruction booklet — often split into multiple numbered bags and build stages. The official PDF is available free on LEGO.com, or use LegoFinder's AI to find it instantly from a photo.
NINJAGO City Workshops FAQ
Related Reading
More Ninjago Sets
See all Ninjago →
Also Released in 2025
All 2025 sets →Similar Build Difficulty
Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.
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