How many pieces are in the International Space Station?

International Space Station contains 864 pieces.

What age is the International Space Station recommended for?

This set is recommended for ages 16+.

When was the International Space Station released?

International Space Station was released in 2020.

LEGO International Space Station set 21321

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🏛 LEGO Ideas and CUUSOO

Set #21321

International Space Station

The International Space Station is a stunning tribute to human ingenuity.

Before you buy

Who it's for: Ages 16+ · Intermediate build Space enthusiasts and LEGO fans looking for a detailed display model
Build: 864 pieces · about 4.5 hours Build time is an estimate.
Price: $69.99 list price · 8.1¢ per piece
Availability: Retired at LEGO

★★★★☆ 4.2 community rating from 583 ratings

Fans praise the set's accurate representation of the ISS and the engaging building experience. Some criticisms include the repetitive nature of building the solar panels and the lack of minifigures for scale.

$69.99

Check price on eBay

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The International Space Station is a stunning tribute to human ingenuity. This LEGO Ideas set captures the iconic orbiting laboratory with impressive accuracy, featuring posable solar panels, a detailed Canadarm2, and a display stand with nameplates for the various modules.

This set is perfect for space enthusiasts, LEGO collectors, and anyone who appreciates a challenging and rewarding build. The construction process is engaging, with clever techniques used to replicate the ISS's complex structure, resulting in a beautiful display model that sparks conversation.

Skip this if you prefer play-focused sets or are looking for something quick to assemble. While visually appealing, its primary function is display, and the intricate build may not appeal to those seeking instant gratification. Consider smaller LEGO space sets for more immediate play value.

✨ New

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How does this set compare to other LEGO space exploration models in terms of detail and accuracy? What are some creative ways to display this set to maximize its impact? How does the retirement of this set affect its value and collectibility? What are the key building techniques used in this set, and how do they contribute to the overall design?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

864

Pieces

⏱

4.5h

Estimated Build Time

📊

Intermediate

Difficulty

📏

20cm × 31cm × 49cm

Dimensions

Build Highlights:

Intricate construction techniques accurately represent the ISS's structure
Posable solar panels allow for dynamic display options
Detailed Canadarm2 adds to the authenticity
Display stand with nameplates provides context and enhances presentation

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

Not enough price history for a trend

B+

Investment Grade

⏳ Retired

The International Space Station (21321) presents a reasonable investment opportunity, benefiting from its status as a retired LEGO Ideas set. Its appeal lies in the popular space exploration theme and the detailed recreation of an iconic structure. The piece count of 864 is respectable, and the set contains unique printed elements. The risk lies in potential saturation of the market due to the set's initial popularity. However, as a retired Ideas set with a specific niche appeal, it is likely to appreciate in value over time, especially if kept in mint condition.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

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Compared to other LEGO space sets like the NASA Apollo Saturn V (21309-1) or the Lunar Lander (10266-1), the International Space Station offers a different perspective, focusing on orbital habitation rather than launch vehicles or lunar exploration. While the Saturn V provides impressive scale and the Lunar Lander focuses on a specific mission, the ISS provides a detailed and intricate model of a complex scientific outpost. Collectors might choose the ISS for its unique subject matter and display potential.

📦 Parts Inventory

Official piece count: 864
Parts cataloged in this inventory: 144 unique parts, 864 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Plate Special 2 x...

Part #: 10247 2× Light Bluish Gray

Bar Holder with Clip

Part #: 11090 3× White

Brick Special 1 x...

Part #: 11211 1× Tan

Sports Roller Skate

Part #: 11253 4× Light Bluish Gray

Sports Roller Skate

Part #: 11253 2× Black

Plate Special 1 x...

Part #: 11476 2× Light Bluish Gray

Brick Curved 2 x ...

Part #: 11477 2× White

Tile Round 2 x 2 ...

Part #: 14769pr1112 3× Light Bluish Gray

Brick Curved 2 x ...

Part #: 15068 2× Light Bluish Gray

Brick Curved 2 x ...

Part #: 15068 7× White

Plate Special 2 x...

Part #: 15092 1× Dark Bluish Gray

Technic Pin Conne...

Part #: 15100 4× Black

Brick Round 2 x 2...

Part #: 15395 1× White

Tile Special Roun...

Part #: 15535 4× White

Tile Special Roun...

Part #: 15535 3× Dark Bluish Gray

Plate Special 1 x...

Part #: 15573 3× White

Plate Special 1 x...

Part #: 15573 2× Black

Plate Special 1 x...

Part #: 15573 1× Light Bluish Gray

Brick Sloped 45° ...

Part #: 15672 8× Black

Brick Sloped 45° ...

Part #: 15672 12× White

Tile Special 1 x ...

Part #: 15712 3× Black

Tile Special 1 x ...

Part #: 15712 3× White

Brick Round 2 x 2...

Part #: 17485 2× Light Bluish Gray

Technic Axle Pin ...

Part #: 18651 2× Black

Technic Pin Conne...

Part #: 18654 1× White

Plate Special Rou...

Part #: 18674 5× Light Bluish Gray

Tile Special Roun...

Part #: 20482 3× White

Bar Holder with H...

Part #: 23443 4× White

Technic Axle 11

Part #: 23948 8× Light Bluish Gray

Panel 1 x 3 x 1

Part #: 23950 2× Dark Bluish Gray

Large Figure Weap...

Part #: 24122 2× White

Large Figure Weap...

Part #: 24122 16× Dark Bluish Gray

Tile Special 1 x ...

Part #: 2412b 10× Black

Plate 2 x 2 Corner

Part #: 2420 4× Light Bluish Gray

Brick Curved Inve...

Part #: 24201 4× White

Tile 1 x 4 with S...

Part #: 2431pr0115 64× Dark Blue

Plate 2 x 12

Part #: 2445 2× Light Bluish Gray

Plate 2 x 12

Part #: 2445 4× White

Plate 2 x 12

Part #: 2445 16× Orange

Wedge Plate 3 x 3...

Part #: 2450 2× Black

Wedge Plate 3 x 3...

Part #: 2450 2× White

Brick Special 1 x...

Part #: 2458 8× Black

Plate Special 1 x...

Part #: 2540 7× Light Bluish Gray

Plate Special 1 x...

Part #: 26047 3× Light Bluish Gray

Plate Round 2 x 2...

Part #: 2654 1× White

Plate Round 2 x 2...

Part #: 2654 7× Black

Technic Pin with ...

Part #: 2780 3× Black

Brick Special 1 x...

Part #: 2877 4× Black

Lever Small Base ...

Part #: 298c02 1× Light Bluish Gray

Brick 2 x 2

Part #: 3003 2× White

Brick 1 x 8

Part #: 3008 1× Black

Brick Curved 2 x ...

Part #: 30165 2× White

Plate 2 x 4

Part #: 3020 5× Dark Tan

Plate 2 x 4

Part #: 3020 2× Light Bluish Gray

Plate 2 x 4

Part #: 3020 4× Black

Plate 2 x 3

Part #: 3021 8× Light Bluish Gray

Plate 2 x 3

Part #: 3021 1× White

Plate 2 x 2

Part #: 3022 8× Dark Bluish Gray

Plate 2 x 2

Part #: 3022 3× White

Plate 2 x 2

Part #: 3022 1× Tan

Plate 1 x 1

Part #: 3024 16× Pearl Gold

Plate 1 x 1

Part #: 3024 1× Black

Plate 1 x 1

Part #: 3024 1× White

Plate 6 x 16

Part #: 3027 1× Black

Flag 7 x 3 with Rod

Part #: 30292 4× White

Flag 7 x 3 with R...

Part #: 30292pr0005 2× Dark Blue

Plate 2 x 8

Part #: 3034 1× Black

Brick Round 2 x 2...

Part #: 30361c 1× White

Brick Round 2 x 2...

Part #: 30361c 2× Light Bluish Gray

Brick Round 2 x 2...

Part #: 30367c 1× White

Bar 4L (Lightsabe...

Part #: 30374 1× White

Bar 4L (Lightsabe...

Part #: 30374 5× Pearl Gold

Brick Sloped 45° ...

Part #: 3039 4× Black

Brick Round 1 x 1...

Part #: 3062b 2× Light Bluish Gray

Tile 2 x 2 with G...

Part #: 3068b 2× Orange

Tile 2 x 2 with G...

Part #: 3068b 3× Black

Tile 2 x 2 with G...

Part #: 3068b 8× White

Tile 1 x 2 with G...

Part #: 3069b 2× White

Tile 1 x 1 with G...

Part #: 3070b 6× White

Technic Brick 1 x...

Part #: 32000 9× White

Technic Pin Long ...

Part #: 32054 8× Light Bluish Gray

Technic Pin Long ...

Part #: 32054 4× Black

Technic Axle 2 No...

Part #: 32062 8× Black

Technic Brick 1 x...

Part #: 32064a 4× Light Bluish Gray

Technic Brick 1 x...

Part #: 32064a 2× White

Technic Bush 1/2 ...

Part #: 32123b 3× Light Bluish Gray

Technic Plate 1 x...

Part #: 32124 1× Black

Technic Beam 1 x ...

Part #: 32278 4× Black

Technic Beam 1 x ...

Part #: 32523 2× Black

Brick Sloped Inve...

Part #: 32802 2× Dark Bluish Gray

Brick Curved Inve...

Part #: 32803 2× Light Bluish Gray

Brick Curved Inve...

Part #: 32803 2× White

Plate Special Rou...

Part #: 32828 4× Light Bluish Gray

Brick Sloped 33° ...

Part #: 3297 2× Black

Brick Sloped 33° ...

Part #: 3300 12× White

Plate Special 1 x...

Part #: 34103 2× Light Bluish Gray

Plate Special 1 x...

Part #: 35480 23× Light Bluish Gray

Plate Special 1 x...

Part #: 35480 2× Dark Bluish Gray

Brick 1 x 3

Part #: 3622 1× Black

Fence Lattice 1 x...

Part #: 3633 4× White

Plate 1 x 6

Part #: 3666 3× White

Plate 1 x 6

Part #: 3666 3× Black

Bracket 1 x 1 - 1...

Part #: 36840 2× Dark Bluish Gray

Technic Brick 1 x...

Part #: 3700 5× Black

Technic Brick 1 x...

Part #: 3701 1× Black

Technic Brick 1 x...

Part #: 3701 2× White

Technic Brick 1 x...

Part #: 3703 2× Black

Part #: 3709 4× Light Bluish Gray

Plate 1 x 4

Part #: 3710 2× Dark Bluish Gray

Plate 2 x 6

Part #: 3795 3× White

Plate Special 1 x...

Part #: 3839b 2× Light Bluish Gray

Hinge Brick 1 x 2...

Part #: 3937 1× Black

Brick Round 2 x 2...

Part #: 3941 11× Light Bluish Gray

Bracket 2 x 2 - 2...

Part #: 3956 1× Light Bluish Gray

Plate Round 2 x 2...

Part #: 4032a 3× White

Plate Round 2 x 2...

Part #: 4032a 11× Dark Bluish Gray

Plate Round 2 x 2...

Part #: 4032a 1× Black

Plate Special 1 x...

Part #: 4081b 2× White

Technic Driving R...

Part #: 42195 8× Light Bluish Gray

Technic Pin 1/2 w...

Part #: 4274 3× Blue

Brick Sloped 33° ...

Part #: 4286 2× Black

Technic Axle Pin ...

Part #: 43093 3× Blue

Wedge Plate 4 x 4...

Part #: 43719 1× Black

Wedge Plate 4 x 4...

Part #: 43719 2× White

Wedge Plate 3 x 2...

Part #: 43722 1× Black

Wedge Plate 3 x 2...

Part #: 43723 1× Black

Brick Curved 6 x 2

Part #: 44126 2× Black

Hinge Plate 1 x 2...

Part #: 44567b 2× Black

Tail Shuttle - Small

Part #: 44661 1× White

Bracket 1 x 2 - 2...

Part #: 44728 8× Dark Bluish Gray

Plate 1 x 10

Part #: 4477 6× White

Plate 1 x 10

Part #: 4477 4× Dark Bluish Gray

Technic Axle 3

Part #: 4519 8× Yellow

Brick Special 1 x...

Part #: 4595 1× Light Bluish Gray

Pneumatic T-Piece...

Part #: 4697b 10× White

Brick Special 1 x...

Part #: 4733 5× White

Dish 2 x 2 Invert...

Part #: 4740 4× Metallic Silver

Bar 1L with Clip ...

Part #: 48729b 8× Light Bluish Gray

Technic Ball Join...

Part #: 53585 4× Black

Brick Sloped 30° ...

Part #: 54200 4× White

Brick Sloped 30° ...

Part #: 54200 1× Black

Brick Sloped 30° ...

Part #: 54200 2× Light Bluish Gray

Technic Brick Spe...

Part #: 57909b 2× Dark Bluish Gray

Technic Axle Conn...

Part #: 59443 8× Dark Bluish Gray

Plate Special 1 x...

Part #: 60470b 4× Light Bluish Gray

Technic Axle 9

Part #: 60485 1× Yellow

Plate Special 1 x...

Part #: 60897 4× White

Hinge Brick 2 x 2...

Part #: 6134 1× Light Bluish Gray

Plate Special 4 x...

Part #: 6180pr0005 1× Black

Technic Brick 1 x...

Part #: 6541 16× Dark Bluish Gray

Technic Pin Long ...

Part #: 6558 10× Blue

Tile Special 2 x ...

Part #: 65886pr0008 46× Dark Blue

Plate Round 1 x 1...

Part #: 85861 4× Black

Plate Round 1 x 1...

Part #: 85861 9× White

Cone 1.17 x 1.17 ...

Part #: 85975 5× Black

Cone 1.17 x 1.17 ...

Part #: 85975 1× White

Brick Sloped 30° ...

Part #: 85984 14× White

Brick Sloped 30° ...

Part #: 85984 16× Light Bluish Gray

Tile 2 x 4 with G...

Part #: 87079 4× Light Bluish Gray

Bar 5L with Handl...

Part #: 87618 2× Light Bluish Gray

Bar 3L

Part #: 87994 37× Light Bluish Gray

Plate Special 1 x...

Part #: 88072 1× Dark Bluish Gray

Brick Curved 2 x ...

Part #: 88930 2× White

Minifig Trophy St...

Part #: 90398pr0012 2× White

Bar 3L with Handl...

Part #: 90540 4× Pearl Gold

Technic Brick Spe...

Part #: 92013 2× White

Plate Special 1 x...

Part #: 92280 3× White

Brick Round 2 x 2...

Part #: 92947 1× White

Arm Skeleton Bent...

Part #: 93061 2× White

Brick Curved 4 x ...

Part #: 93273 2× White

Bracket 1 x 2 - 2...

Part #: 93274 4× Light Bluish Gray

Brick and Axle Se...

Part #: 96874 1× Orange

Brick Round 2 x 2...

Part #: 98100 1× White

Brick Round 2 x 2...

Part #: 98100 1× Black

Brick Round 2 x 2...

Part #: 98100pr0010 1× Light Bluish Gray

Tile Round 1 x 1

Part #: 98138 1× Dark Bluish Gray

Tile Round 1 x 1

Part #: 98138 5× White

Tile Round 1 x 1 ...

Part #: 98138pr0035 3× Flat Silver

Bracket 1 x 2 - 2...

Part #: 99207 10× Light Bluish Gray

Tile Special 1 x ...

Part #: 99563 4× Flat Silver

Bracket 1 x 2 - 1...

Part #: 99780 2× Black

Bracket 1 x 2 - 1...

Part #: 99780 10× White

Bracket 1 x 2 - 1...

Part #: 99781 2× Light Bluish Gray

Bracket 1 x 2 - 1...

Part #: 99781 2× White

The set is a great source of dark blue printed tiles representing solar panels, which are highly desirable for space-themed MOCs. The inclusion of orange plates also provides a pop of color and useful building elements.

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

1 video found

BlockTalk AI

BrixLab's Italian review celebrates the LEGO Ideas International Space Station (21321) as a microscale representation of the iconic ISS. The set is further praised for commemorating the LEGO Ideas project's 10th anniversary.