# LEGO 40231-1 — LEGO Design Seminar Set 2025 (2025)

Source: https://www.brickmissing.com/sets/40231-1-lego-design-seminar-set-2025
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

## Set facts

- Set number: 40231-1
- Name: LEGO Design Seminar Set 2025
- Theme: LEGO Exclusive
- Released: 2025
- Pieces: 175
- Distinct part + colour lots: 59
- Build difficulty: easy
- Repairability: 10.2% of this set's lots are hard to replace (6 of 59 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (59 lots, 175 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 4 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Black | 11477 | 6055065 | €0,06 |
| 4 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Dark Azure | 11477 | 6137300 | €0,06 |
| 2 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Black | 15573 | 6092585 | €0,06 |
| 8 | Wedge Plate 4 Stud 45° Angle Plate | Black | 15706 | 6054852 | €0,22 |
| 7 | Slope 45° 2 x 1 Inverted with 2/3 Cutout | Black | 2310 | 6465248 | €0,16 |
| 8 | Wedge Plate 2 x 2 Left | Dark Azure | 24299 | 6145416 | €0,10 |
| 7 | Wedge Plate 2 x 2 Left | Black | 24299 | 6189198 | €0,10 |
| 1 | Tile 1 x 4 with Groove | Black | 2431 | 243126 | €0,12 |
| 1 | Plant, Fern 2 x 3 x 2 | Opal Trans-Dark Pink | 2682 | 6442196 | €0,19 |
| 4 | Slope Curved 2 x 1 with Stud Notch Left | Black | 29120 | 6172414 | €0,07 |
| 4 | Slope Curved 2 x 1 with Stud Notch Left | Dark Azure | 29120 | 6211418 | €0,07 |
| 1 | Brick 2 x 2 | Red | 3003 | 300321 | €0,13 |
| 7 | Plate 2 x 4 | Black | 3020 | 302026 | €0,15 |
| 2 | Plate 2 x 3 | Black | 3021 | 302126 | €0,13 |
| 1 | Plate 2 x 2 | Black | 3022 | 302226 | €0,10 |
| 4 | Plate 1 x 2 | Black | 3023 | 302323 | €0,08 |
| 4 | Plate 1 x 2 | Dark Azure | 3023 | 4653988 | €0,08 |
| 5 | Brick Round 1 x 1 Open Stud | Trans-Clear | 3062b | 6223655 | €0,08 |
| 2 | Tile 2 x 2 with Groove | Black | 3068b | 306826 | €0,07 |
| 1 | Tile 1 x 2 with Groove | Black | 3069b | 306923 | €0,07 |
| 2 | Tile 1 x 1 with Groove | Black | 3070b | 307026 | €0,05 |
| 2 | Plate 1 x 8 | Black | 3460 | 346023 | €0,18 |
| 2 | Plate 1 x 6 | Medium Azure | 3666 | 4625036 | €0,17 |
| 1 | Hinge Brick 1 x 2 Base | Black | 3937 | 393726 | €0,10 |
| 1 | Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] | Black | 4081b | 6281993 | €0,10 |
| 2 | Plate 8 x 8 | Black | 41539 | 4166619 | €0,99 |
| 10 | Wedge Plate 3 x 2 Right | Black | 43722 | 4498155 | €0,15 |
| 12 | Wedge Plate 3 x 2 Right | Dark Azure | 43722 | 6565474 | €0,15 |
| 2 | Plate Special 1 x 2 [Open O Top Clip] | Black | 44861 | 6347310 | €0,15 |
| 1 | Panel 1 x 2 x 1 [Rounded Corners] | Black | 4865b | 6146220 | €0,10 |
| 1 | Animal, Bird, Duck / Duckling with Black Eyes, Orange Beak | Yellow | 49661pr0001 | 6269141 | €1,66 |
| 1 | Plate Special 2 x 2 with Horizontal T-Bar Underneath | Black | 5066 | 6488003 | €0,38 |
| 4 | Tile 1 x 2 with Stud Notch Left | Dark Azure | 5091 | 6551377 | €0,13 |
| 4 | Tile 1 x 2 with Stud Notch Left | Black | 5091 | 6535148 | €0,13 |
| 1 | Plate Round 4 x 4 with Pin Hole | Black | 60474 | 4515350 | €0,17 |
| 4 | Brick Curved 2 x 4 x 1 1/3 | Black | 6081 | 6174252 | €0,27 |
| 8 | Brick Curved 1 x 2 x 1 1/3 with Curved Top | Black | 6091 | 6184784 | €0,08 |
| 2 | Hinge Brick 2 x 2 Top Plate Thin | Black | 6134 | 4124096 | €0,15 |
| 1 | Turntable 4 x 4 Square Base, Locking | Black | 61485 | 4517986 | €0,25 |
| 4 | Tile 1 x 3 | Black | 63864 | 4558170 | €0,11 |
| 6 | Bar, Angled with 1 x 1 Round Plate / Stud on End | Trans-Clear | 65578 | 6510188 | €0,10 |
| 4 | Brick Curved 2 x 2 x 1 1/3 Curved Top, Corner | Black | 67810 | 6359039 | €0,19 |
| 1 | Plate Round 1 x 1 with Open Stud | Trans-Light Blue | 85861 | 6510163 | €0,05 |
| 3 | Slope 30? 1 x 2 x 2/3 | Black | 85984 | 4548180 | €0,07 |
| 1 | Tile 2 x 4 with Groove | Black | 87079 | 4560182 | €0,16 |
| 1 | Brick Round 4 x 4 Centre Hole | Black | 87081 | 4558957 | €0,36 |
| 5 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Black | 87580 | 4565323 | €0,10 |
| 1 | Torso, White 'LEGO DESIGN' print, Dark Purple Arms, Yellow Hands | Dark Purple | 973c09h01pr0004 | — | — |
| 1 | Hair Ponytail and Swept Sideways Fringe | Reddish Brown | 87990 | 6093515 | €0,29 |
| 1 | Hips and Sand Blue Legs | Sand Blue | 970c24 | 4267425 | €0,63 |
| 1 | Minifig Head, Dark Orange Glasses, Peach Lips, Smile / Concerned Print | Yellow | 3626cpr3770 | 6319672 | €0,31 |
| 1 | Hips and Medium Lavender Legs | Medium Lavender | 970c33 | 6167628 | €0,63 |
| 1 | Minifig Head with Yellow Face, Smile | Medium Lavender | 28621pr9488 | — | — |
| 1 | Torso, Magenta Superhero Suit Outlines print, Medium Lavender Arms, Magenta Hands | Medium Lavender | 973c33h37pr0001 | — | — |
| 1 | Hair, Ponytail Long Wavy with Trans-Orange Pattern | Trans-Pink | 1987pat0003 | 6528673 | — |
| 1 | Cap, Police Style | Black | 3624 | 362426 | €0,29 |
| 1 | Hips and Black Legs | Black | 970c03 | 9339 | €0,63 |
| 1 | Torso Shirt, Patch Pocket Print, Red Arms, Yellow Hands | Red | 973c22h01pr0061 | — | — |
| 1 | Minifig Head Standard Grin Print [Hollow Stud] | Yellow | 3626cpr0001 | 9336 | €0,31 |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/40231-1-lego-design-seminar-set-2025
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/40231-1-lego-design-seminar-set-2025