LEGO International Space Station
Set #21321 · 2020 · 864 pieces · Advanced build
Set Details
- Set Number
- 21321
- Name
- International Space Station
- Year
- 2020
- Pieces
- 864
- Complexity
- Advanced
- Build Time
- 4-8 hours
- Ages
- 14+
- Type
- Great for display
About LEGO International Space Station
LEGO International Space Station (set #21321) is a large, detailed build with 864 pieces from the LEGO Ideas and CUUSOO theme, released in 2020. The LEGO Ideas and CUUSOO line features fan-designed sets voted into production by the community. Designed primarily for older teens and adults, this set is built for display with an estimated build time of 4-8 hours.
Set Highlights
- 864 pieces at advanced complexity — a 4-8 hours build.
- Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
- Display-focused design — the finished model holds together well on a shelf without support.
Who Is This Set For?
Display & Collection
At 864 pieces, the finished model is built for a shelf or desk. Popular among adult fans and collectors who prefer challenging builds over play value.
Multi-Session Build Project
The estimated 4-8 hours build time makes this ideal for spreading across evenings or weekends. A satisfying project that rewards patience.
Gift for Adult LEGO Enthusiasts
One of the most-gifted categories for fans aged 14++. Works well for birthdays, holidays, or as a personal treat for LEGO Ideas and CUUSOO enthusiasts.
Build Tips
A five-minute sort by color or piece type before starting saves time hunting for specific bricks mid-step.
Follow the numbered steps in sequence — structural elements early in the build support everything that comes after.
Once built, direct sunlight yellows ABS plastic over time. A display case or UV-filtered shelf glass keeps colors vibrant.
Finding Instructions
Building instructions for LEGO International Space Station (#21321) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.
International Space Station FAQ
Related Reading
More LEGO Ideas and CUUSOO Sets
See all LEGO Ideas and CUUSOO →
Also Released in 2020
All 2020 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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