Invention Designer (Kits 10 - 12)

20215-1 Master Builder Academy 2013 678 parts 1.5% Intermediate

The LEGO Master Builder Academy Invention Designer 20215-1, with 678 pieces, immerses builders in a Steampunk world, exploring historical innovations and diverse architectural styles. Builders culminate their learning at the Inventor’s Lab, creating custom designs. This set includes 13 building instructions: three for main models and ten additional springboard designs for further exploration. Three 84-page Designer Handbooks detail 141 official building tips and six key LEGO Master Builder techniques. Each of the three exclusive LEGO MBA Level 4 Minifigures arrives with its own themed accessory build. An included access code grants entry to members-only online content at LEGO.com/mba, offering extra technique demonstrations and skill tests.

Parts Inventory

🧱 678 parts
PartQty
Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]

Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]

11153

€0,12
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Tile Special 1 x 1 with Clip with Rounded Tips

Tile Special 1 x 1 with Clip with Rounded Tips

12825

View
Brick 2 x 2 Corner

Brick 2 x 2 Corner

2357

€0,16
View
Tile Special 1 x 2 Grille with Bottom Groove

Tile Special 1 x 2 Grille with Bottom Groove

2412b

13×
€0,06
View
Plate 2 x 2 Corner

Plate 2 x 2 Corner

2420

€0,07
View
Plate 2 x 2 Corner

Plate 2 x 2 Corner

2420

€0,07
View
Tile 1 x 4 with Groove

Tile 1 x 4 with Groove

2431

€0,12
View
Tile 1 x 4 with Groove

Tile 1 x 4 with Groove

2431

€0,12
View
Slope Inverted 75° 2 x 1 x 3

Slope Inverted 75° 2 x 1 x 3

2449

€0,23
View
Brick Special 1 x 2 with Pin

Brick Special 1 x 2 with Pin

2458

View
Plate Special 1 x 2 Side Handle [Free Ends]

Plate Special 1 x 2 Side Handle [Free Ends]

2540

12×
€0,07
View
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]

Plate Round 2 x 2 with Rounded Bottom [Boat Stud]

2654

€0,07
View
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Repairability

Can you fix Invention Designer (Kits 10 - 12) if a piece goes missing?

1.5%Low repair risk
easy to fixguard this box

3 of the 203 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

3.5%

All sets

6.7%

Hardest to replace

Design Handbook MBA KIT 10 · Unknown · only this setDesign Handbook MBA KIT 11 · Unknown · only this setDesign Handbook MBA KIT 12 · Unknown · only this set
How we calculate this →

Build DNA

Parts inventory insights for Invention Designer (Kits 10 - 12)

678 pieces puts this build +226% against the average Master Builder Academy set and +132% against the average 2013 release.

LEGOMASTER BUILDER ACADEMY

Vs average Master Builder Academy set

+226%+470 parts
This set678
Average set208

Average Master Builder Academy set: 208 pieces across 16 other sets.

Vs average 2013 set

+132%+386 parts
This set678
Average set292

Average 2013 set: 292 pieces across 334 other sets.

Color profile

19different colors

Dominant color

Black

Black19x
31%
Dark Red15x
24%
Tan8x
13%
White6x
10%

Unique parts

0.4 pieces per unique type

145

Repeat factor

Average pieces per unique type.

1x

Most used part

Plate Round 1 x 1 with Solid Stud

Plate Round 1 x 1 with Solid Stud44x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

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