# LEGO 40505-1 — Building Systems (2024)

Source: https://www.brickmissing.com/sets/40505-1-building-systems
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

The LEGO Exclusive Building Systems 40505-1 set, comprising 1211 pieces, offers a detailed retrospective on LEGO's foundational construction methods. It features three distinct mini-scale models, each echoing a classic from the core building systems. Prominent among these is a representation of the 1955 Town Plan, a pivotal early LEGO System in Play product. The set also includes a mini-scale DUPLO Train, drawing inspiration from the 1980s sets 2700 and 2705. A highlight is the Technic mini-scale model, based on the flagship 853, which showcases a functioning steering system and visible moving pistons within its motor assembly. Behind a cleverly integrated wall, discover 19 nano-builds depicting milestone LEGO models, with space left for a personal favorite. This historical display piece measures approximately 38 cm in width, making it a significant addition to any collection of toy memorabilia.

## Set facts

- Set number: 40505-1
- Name: Building Systems
- Theme: LEGO Exclusive › LEGO House
- Released: 2024
- Pieces: 1211
- Distinct part + colour lots: 271
- Build difficulty: advanced
- Repairability: 0.7% of this set's lots are hard to replace (2 of 271 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (271 lots, 1211 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 |
| ---: | --- | --- | --- | --- | --- |
| 16 | Plate 3 x 3 | Dark Bluish Gray | 11212 | 6039176 | €0,12 |
| 2 | Sports Roller Skate | Black | 11253 | 6267163 | €0,15 |
| 3 | Sports Roller Skate | Black | 11253 | 6088585 | €0,15 |
| 11 | Sports Roller Skate | Flat Silver | 11253 | 6215447 | — |
| 3 | Sports Roller Skate | Red | 11253 | 6177500 | €0,15 |
| 1 | Tile 2 x 2 Corner | Black | 14719 | 6129747 | €0,06 |
| 1 | Tile 2 x 2 Corner | Dark Bluish Gray | 14719 | 6247784 | €0,06 |
| 1 | Slope 45° 2 x 1 Triple with Inside Stud Holder | Black | 15571 | 6249783 | €0,10 |
| 3 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Black | 15573 | 6092585 | €0,06 |
| 13 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Dark Bluish Gray | 15573 | 6092572 | €0,06 |
| 14 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Light Bluish Gray | 15573 | 6066097 | €0,06 |
| 2 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | White | 15573 | 6051511 | €0,06 |
| 2 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Yellow | 15573 | 6092583 | €0,06 |
| 10 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Red | 15573 | 6092565 | €0,06 |
| 4 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Light Bluish Gray | 15573 | 6092586 | €0,06 |
| 5 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Black | 15573 | 6092582 | €0,06 |
| 1 | Tile Special 1 x 1 with Clip with Rounded Edges | Black | 15712 | 6335388 | €0,12 |
| 2 | Tile Special 1 x 1 with Clip with Rounded Edges | Yellow | 15712 | 6348056 | €0,12 |
| 3 | Tile Special 1 x 1 with Clip with Rounded Edges | Red | 15712 | 6348058 | €0,12 |
| 2 | Tile Special 1 x 1 with Clip with Rounded Edges | White | 15712 | 6348055 | €0,12 |
| 3 | Plate Round 1 x 2 Half Circle with Stud (Jumper) | Light Bluish Gray | 1745 | 6510058 | €0,15 |
| 1 | Plate Round 1 x 2 Half Circle with Stud (Jumper) | Black | 1745 | 6510061 | €0,15 |
| 1 | Weapon Harpoon [Smooth Shaft] | Black | 18041 | 6210496 | €0,10 |
| 2 | Plate Special 1 x 2 with Pin Hole Underneath | Red | 18677 | 6168634 | €0,07 |
| 4 | Brick Arch 1 x 12 x 3 Raised Arch with 5 Cross Supports | Dark Bluish Gray | 18838 | 6311438 | €0,79 |
| 2 | Tile Round 1 x 1 with Hollow Bar | Black | 20482 | 6186675 | €0,05 |
| 1 | Slope 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] | Black | 22388 | 6312449 | €0,07 |
| 9 | Brick 2 x 2 Corner | Dark Bluish Gray | 2357 | 4211109 | €0,16 |
| 3 | Panel 1 x 2 x 1 with Rounded Corners and 2 Sides | White | 23969 | 6248490 | €0,11 |
| 2 | Plate 2 x 2 Corner | Yellow | 2420 | 242024 | €0,07 |
| 1 | Tile Round 1 x 1 Half Circle | Black | 24246 | 6268862 | €0,06 |
| 1 | Tile Round 1 x 1 Half Circle | Dark Red | 24246 | 6322997 | €0,06 |
| 1 | Tile Round 1 x 1 Half Circle | Yellow | 24246 | 6300104 | €0,06 |
| 2 | Tile Round 1 x 1 Half Circle | Red | 24246 | 6258973 | €0,06 |
| 1 | Wedge Plate 2 x 2 Left | Light Bluish Gray | 24299 | 6163478 | €0,10 |
| 1 | Wedge Plate 2 x 2 Left | Light Bluish Gray | 24299 | 6385276 | €0,10 |
| 1 | Wedge Plate 2 x 2 Right | Light Bluish Gray | 24307 | 6163477 | €0,10 |
| 1 | Wedge Plate 2 x 2 Right | Light Bluish Gray | 24307 | 6385279 | €0,10 |
| 2 | Tile 1 x 4 with Groove | Red | 2431 | 243121 | €0,12 |
| 2 | Tile 1 x 4 with Groove | Black | 2431 | 243123 | €0,12 |
| 1 | Tile 1 x 4 with Groove | White | 2431 | 243101 | €0,12 |
| 4 | Plate 2 x 12 | Dark Bluish Gray | 2445 | 4211067 | €0,36 |
| 5 | Brick 2 x 6 | Dark Bluish Gray | 2456 | 4210875 | €0,29 |
| 2 | Plant, Flower, Plate Round 1 x 1 with 5 Petals | Dark Green | 24866 | 6446790 | €0,06 |
| 1 | Plant, Flower, Plate Round 1 x 1 with 5 Petals | Light Bluish Gray | 24866 | 6343322 | €0,06 |
| 1 | Wedge Plate 2 x 2 Cut Corner | Dark Tan | 26601 | 6228921 | €0,07 |
| 2 | Tile 2 x 3 | Light Bluish Gray | 26603 | 6288100 | €0,11 |
| 4 | Tile 2 x 3 | Red | 26603 | 6189130 | €0,11 |
| 1 | Slope Curved 2 x 1 with Stud Notch Right | Dark Green | 29119 | 6214813 | €0,07 |
| 1 | Slope Curved 2 x 1 with Stud Notch Left | Dark Green | 29120 | 6214814 | €0,07 |
| 1 | Brick 2 x 4 | Red | 3001 | 300121 | €0,22 |
| 7 | Brick 2 x 4 | Dark Bluish Gray | 3001 | 4211085 | €0,22 |
| 2 | Brick 2 x 4 | Yellow | 3001 | 300124 | €0,22 |
| 5 | Brick 2 x 2 | Dark Bluish Gray | 3003 | 4211060 | €0,13 |
| 2 | Brick 2 x 2 | Black | 3003 | 300323 | €0,13 |
| 1 | Brick 2 x 2 | Yellow | 3003 | 300324 | €0,13 |
| 40 | Brick 1 x 2 | Dark Bluish Gray | 3004 | 4211088 | €0,11 |
| 1 | Brick 1 x 2 | Red | 3004 | 300421 | €0,11 |
| 4 | Brick 1 x 1 | White | 3005 | 300501 | €0,07 |
| 71 | Brick 1 x 4 | Dark Bluish Gray | 3010 | 4211103 | €0,16 |
| 1 | Brick 1 x 4 | Red | 3010 | 301021 | €0,16 |
| 1 | Brick Curved 2 x 2, Two Top Studs | Black | 30165 | 6383194 | €0,16 |
| 2 | Plate 2 x 4 | Yellow | 3020 | 302024 | €0,15 |
| 1 | Plate 2 x 4 | Black | 3020 | 302023 | €0,15 |
| 4 | Plate 2 x 4 | Red | 3020 | 302021 | €0,15 |
| 1 | Plate 2 x 3 | Light Bluish Gray | 3021 | 302128 | €0,13 |
| 1 | Plate 2 x 3 | Black | 3021 | 302123 | €0,13 |
| 5 | Plate 2 x 3 | White | 3021 | 302101 | €0,13 |
| 3 | Plate 2 x 3 | Red | 3021 | 302121 | €0,13 |
| 2 | Plate 2 x 2 | Yellow | 3022 | 302224 | €0,10 |
| 11 | Plate 2 x 2 | Dark Bluish Gray | 3022 | 4211094 | €0,10 |
| 4 | Plate 2 x 2 | White | 3022 | 302201 | €0,10 |
| 8 | Plate 2 x 2 | Pearl Gold | 3022 | 6347982 | €0,10 |
| 1 | Plate 2 x 2 | Black | 3022 | 302223 | €0,10 |
| 1 | Plate 2 x 2 | Light Bluish Gray | 3022 | 302228 | €0,10 |
| 7 | Plate 1 x 2 | Light Bluish Gray | 3023 | 302328 | €0,08 |
| 5 | Plate 1 x 2 | Yellow | 3023 | 302324 | €0,08 |
| 5 | Plate 1 x 2 | Trans-Clear | 3023 | 6514001 | €0,10 |
| 12 | Plate 1 x 2 | Dark Bluish Gray | 3023 | 4211063 | €0,08 |
| 6 | Plate 1 x 2 | Red | 3023 | 302321 | €0,08 |
| 1 | Plate 1 x 2 | Light Bluish Gray | 3023 | 4211398 | €0,08 |
| 1 | Plate 1 x 2 | Reddish Brown | 3023 | 4211150 | €0,08 |
| 2 | Plate 1 x 2 | White | 3023 | 302301 | €0,08 |
| 1 | Plate 1 x 1 | Sand Green | 3024 | 6099189 | €0,06 |
| 2 | Plate 1 x 1 | Dark Green | 3024 | 6055169 | €0,06 |
| 1 | Plate 1 x 1 | Medium Blue | 3024 | 4179826 | €0,06 |
| 4 | Plate 1 x 1 | Dark Bluish Gray | 3024 | 4210719 | €0,06 |
| 2 | Plate 1 x 1 | Light Bluish Gray | 3024 | 4211399 | €0,06 |
| 12 | Plate 1 x 1 | Trans-Clear | 3024 | 6513962 | €0,06 |
| 4 | Plate 1 x 1 | Lavender | 3024 | 6099363 | €0,06 |
| 28 | Plate 1 x 1 | White | 3024 | 302401 | €0,06 |
| 6 | Plate 1 x 1 | Red | 3024 | 302421 | €0,06 |
| 9 | Plate 1 x 1 | Yellow | 3024 | 302424 | €0,06 |
| 1 | Plate 1 x 1 | Light Bluish Gray | 3024 | 302428 | €0,06 |
| 9 | Plate 1 x 1 | Black | 3024 | 302423 | €0,06 |
| 11 | Plate 1 x 1 | Black | 3024 | 302426 | €0,06 |
| 16 | Plate 4 x 12 | Black | 3029 | 302926 | €0,63 |
| 3 | Plate 6 x 10 | Yellow | 3033 | 303324 | €0,71 |
| 2 | Plate 6 x 10 | Black | 3033 | 6339304 | €0,71 |
| 1 | Plate 2 x 8 | Black | 3034 | 303426 | €0,29 |
| 1 | Plate Round Corner 3 x 3 | Red | 30357 | 4178428 | €0,17 |
| 1 | Plate Round Corner 3 x 3 | White | 30357 | 4550745 | €0,17 |
| 3 | Plate 6 x 8 | Light Bluish Gray | 3036 | 4211408 | €0,71 |
| 1 | Bar 4L (Lightsaber Blade / Wand) | Reddish Brown | 30374 | 6116613 | €0,05 |
| 1 | Slope 45° 2 x 1 Double with Inside Stud Holder | Red | 3044c | 4157124 | €0,11 |
| 2 | Brick Round 1 x 1 Open Stud | Black | 3062b | 306223 | €0,06 |
| 1 | Brick Round 1 x 1 Open Stud | Yellow | 3062b | 306224 | €0,06 |
| 1 | Brick Round 1 x 1 Open Stud | Light Bluish Gray | 3062b | 4211412 | €0,06 |
| 6 | Tile 2 x 2 with Groove | Light Bluish Gray | 3068b | 4107762 | €0,07 |
| 1 | Tile 2 x 2 with Groove | Red | 3068b | 306821 | €0,07 |
| 11 | Tile 2 x 2 with Groove | Dark Bluish Gray | 3068b | 4211055 | €0,07 |
| 44 | Tile 2 x 2 with Groove | Black | 3068b | 306826 | €0,07 |
| 30 | Tile 2 x 2 with Groove | Yellow | 3068b | 306824 | €0,07 |
| 26 | Tile 2 x 2 with Groove | Black | 3068b | 306823 | €0,07 |
| 17 | Tile 1 x 2 with Groove | Dark Bluish Gray | 3069b | 4211052 | €0,07 |
| 8 | Tile 1 x 2 with Groove | Pearl Gold | 3069b | 6107197 | €0,07 |
| 50 | Tile 1 x 2 with Groove | Black | 3069b | 306926 | €0,07 |
| 2 | Tile 1 x 2 with Groove | Yellow | 3069b | 306924 | €0,07 |
| 2 | Tile 1 x 1 with Groove | Light Bluish Gray | 3070b | 4558593 | €0,05 |
| 2 | Tile 1 x 1 with Groove | Red | 3070b | 307021 | €0,05 |
| 1 | Tile 1 x 1 with Groove | Yellow | 3070b | 307024 | €0,05 |
| 2 | Tile 1 x 1 with Groove | Black | 3070b | 4206330 | €0,05 |
| 1 | Tile 1 x 1 with Groove | Dark Blue | 3070b | 4631385 | €0,05 |
| 2 | Tile 1 x 1 with Groove | Black | 3070b | 307026 | €0,05 |
| 19 | Tile 1 x 1 with White Lines/Stripes print | Light Bluish Gray | 3070bpr0213 | 6286223 | — |
| 5 | Plate Special 3 x 2 with Rounded End, Hole | Black | 3176 | 317623 | €0,12 |
| 2 | Technic Brick 1 x 2 [2 Pin Holes] | Dark Bluish Gray | 32000 | 4210762 | €0,10 |
| 1 | Technic Brick 1 x 2 [2 Pin Holes] | Light Bluish Gray | 32000 | 4211541 | €0,10 |
| 4 | Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced | White | 32123b | 6360263 | €0,04 |
| 1 | Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced | Light Bluish Gray | 32123b | 6271165 | €0,04 |
| 2 | Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] | Yellow | 32530 | 3253024 | — |
| 5 | Plate Round 1 x 1 with Hollow Stud and Horizontal Bar 1L | Dark Green | 32828 | 6392974 | €0,05 |
| 1 | Plate Round 1 x 1 with Hollow Stud and Horizontal Bar 1L | Black | 32828 | 6196548 | €0,05 |
| 4 | Plate Special 2 x 2 with Only 2 studs | Black | 33909 | 6252060 | €0,06 |
| 4 | Plate Special 2 x 2 with Only 2 studs | Red | 33909 | 6219819 | €0,06 |
| 4 | Plate Special 2 x 2 with Only 2 studs | Yellow | 33909 | 6224666 | €0,06 |
| 8 | Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) | Black | 34103 | 6231513 | €0,07 |
| 7 | Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) | Yellow | 34103 | 6228602 | €0,07 |
| 3 | Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) | Dark Bluish Gray | 34103 | 6343852 | €0,07 |
| 4 | Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) | Red | 34103 | 6251410 | €0,07 |
| 5 | Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) | Light Bluish Gray | 34103 | 6378110 | €0,07 |
| 2 | Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) | White | 34103 | 6195371 | €0,07 |
| 4 | Plate 1 x 8 | Black | 3460 | 346023 | €0,18 |
| 6 | Plate 1 x 8 | Yellow | 3460 | 346024 | €0,18 |
| 4 | Plate 1 x 8 | Red | 3460 | 346021 | €0,18 |
| 1 | Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] | Black | 3484 | 6439050 | €0,07 |
| 2 | Slope Double 45° 1 x 1 | Black | 35464 | 6439560 | €0,06 |
| 1 | Slope Double 45° 1 x 1 | Red | 35464 | 6224794 | €0,06 |
| 3 | Plate Special 1 x 2 Rounded with 2 Open Studs | Black | 35480 | 6210270 | €0,07 |
| 1 | Plate Special 1 x 2 Rounded with 2 Open Studs | White | 35480 | 6210272 | €0,07 |
| 2 | Tile 45° Cut 2 x 2 (Triangle) | Light Bluish Gray | 35787 | 6217876 | €0,10 |
| 2 | Tile 45° Cut 2 x 2 (Triangle) | Light Bluish Gray | 35787 | 6385265 | €0,10 |
| 7 | Brick 1 x 3 | Dark Bluish Gray | 3622 | 4211104 | €0,15 |
| 2 | Plate 1 x 3 | Black | 3623 | 362323 | €0,07 |
| 2 | Plate 1 x 3 | Yellow | 3623 | 362324 | €0,07 |
| 1 | Plate 1 x 3 | Red | 3623 | 362321 | €0,07 |
| 1 | Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] | Dark Bluish Gray | 3660 | 4211000 | €0,15 |
| 8 | Slope Inverted 45° 2 x 1 | Dark Bluish Gray | 3665 | 4211096 | €0,11 |
| 14 | Technic Pin without Friction Ridges Lengthwise | Yellow | 3673 | 6331822 | €0,05 |
| 2 | Bracket 1 x 1 - 1 x 1 Inverted | Black | 36840 | 6234695 | €0,06 |
| 3 | Bracket 1 x 1 - 1 x 1 Inverted | Black | 36840 | 6307926 | €0,06 |
| 5 | Bracket 1 x 1 - 1 x 1 Inverted | Yellow | 36840 | 6329867 | €0,06 |
| 1 | Bracket 1 x 1 - 1 x 1 Inverted | Dark Bluish Gray | 36840 | 6225494 | €0,06 |
| 3 | Technic Brick 1 x 2 [1 Pin Hole] | Black | 3700 | 370023 | €0,12 |
| 1 | Technic Brick 1 x 4 [3 Pin Holes] | Black | 3701 | 370123 | €0,17 |
| 4 | Plate 1 x 4 | Black | 3710 | 371023 | €0,12 |
| 4 | Plate 1 x 4 | Black | 3710 | 371026 | €0,12 |
| 1 | Plate 1 x 4 | White | 3710 | 371001 | €0,12 |
| 2 | Plate 1 x 4 | Dark Bluish Gray | 3710 | 4211001 | €0,12 |
| 6 | Plate 1 x 4 | Red | 3710 | 371021 | €0,12 |
| 2 | Brick Curved 1 x 2 x 1 No Studs | White | 37352 | 6248827 | €0,11 |
| 2 | Plate 2 x 6 | Red | 3795 | 379521 | €0,19 |
| 1 | Plate 2 x 6 | Black | 3795 | 379526 | €0,19 |
| 2 | Plate 2 x 10 | Black | 3832 | 383223 | €0,29 |
| 1 | Technic Brick 1 x 6 [5 Pin Holes] | Black | 3894 | 389423 | €0,29 |
| 3 | Plate 6 x 6 | Light Bluish Gray | 3958 | 4211474 | €0,53 |
| 1 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Light Bluish Gray | 4032a | 403228 | €0,06 |
| 14 | Brick Special 1 x 1 with Headlight | Red | 4070 | 407021 | €0,07 |
| 1 | Brick Special 1 x 1 with Headlight | Dark Red | 4070 | 4539092 | €0,07 |
| 2 | Brick Special 1 x 1 with Headlight | Yellow | 4070 | 407024 | €0,07 |
| 6 | Brick Special 1 x 1 with Headlight | White | 4070 | 407001 | €0,07 |
| 1 | Brick Special 1 x 1 with Headlight | Black | 4070 | 407023 | €0,07 |
| 1 | Tile 1 x 8 with Groove | Dark Bluish Gray | 4162 | 4211008 | €0,15 |
| 6 | Tile 1 x 8 with Groove | Red | 4162 | 416221 | €0,15 |
| 1 | Tile 1 x 8 with 'LEGO House' print | Black | 4162pr0092 | 6320270 | — |
| 1 | Tile 1 x 8 with 'LEGO Building Systems' print | Black | 4162pr0108 | 6471563 | — |
| 3 | Plate Special 1 x 4 with 2 Studs with Groove [New Underside] | Light Bluish Gray | 41740 | 6257593 | €0,07 |
| 9 | Brick Special 1 x 2 with Groove | White | 4216 | 4264360 | €0,11 |
| 14 | Wheel 11 x 8 with Center Groove | Red | 42610 | 6467942 | €0,11 |
| 2 | Technic Pin 1/2 | Light Bluish Gray | 4274 | 4211483 | €0,05 |
| 4 | Plate 2 x 16 | Red | 4282 | 428221 | €0,51 |
| 1 | Slope 33° 3 x 1 | Red | 4286 | 428621 | €0,10 |
| 10 | Plate Special 1 x 2 [Open O Top Clip] | Black | 44861 | 6347310 | €0,15 |
| 1 | Plate Special 1 x 2 [Open O Top Clip] | White | 44861 | 6347309 | €0,15 |
| 1 | Plate Special 1 x 2 [Open O Top Clip] | Yellow | 44861 | 6360077 | €0,15 |
| 1 | Plate Special 1 x 2 [Open O Top Clip] | Red | 44861 | 6347308 | €0,15 |
| 2 | Brick Special 1 x 2 with Pin - Bottom Stud Holder | Red | 44865 | 6393320 | €0,30 |
| 4 | Technic Axle 3 | Light Bluish Gray | 4519 | 4211815 | €0,05 |
| 1 | Brick Special 1 x 2 x 2/3 with Studs on Sides | Black | 4595 | 4523339 | €0,27 |
| 1 | Pneumatic T-Piece (T Bar) [New Style] | Light Bluish Gray | 4697b | 4211508 | €0,13 |
| 1 | Brick Special 1 x 1 Studs on 4 Sides | Reddish Brown | 4733 | 6133765 | €0,22 |
| 1 | Dish 2 x 2 Inverted [Radar] | Light Bluish Gray | 4740 | 4567908 | €0,05 |
| 2 | Brick Curved 1 x 1 x 2/3 Double Curved Top, No Studs | Red | 49307 | 6278441 | €0,05 |
| 1 | Plate Special 1 x 1 with Tooth | Bright Light Orange | 49668 | 4282860 | €0,06 |
| 1 | Plate Special 1 x 1 with Tooth | Light Bluish Gray | 49668 | 6213644 | €0,06 |
| 2 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Yellow | 54200 | 4504381 | €0,06 |
| 8 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Bluish Gray | 54200 | 4504378 | €0,06 |
| 5 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | White | 54200 | 4504369 | €0,06 |
| 1 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Trans-Yellow | 54200 | 6245272 | €0,08 |
| 1 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Black | 54200 | 4504380 | €0,06 |
| 2 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Blue | 54200 | 4504374 | €0,06 |
| 1 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Red | 54200 | 4531415 | €0,06 |
| 1 | Propeller with Pin | Yellow | 54568 | 6265497 | €0,08 |
| 1 | Technic Axle Connector Hub with 3 Axles at 120° | Reddish Brown | 57585 | 6441316 | €0,28 |
| 3 | Cone 1 x 1 [Top Groove] | Dark Green | 59900 | 6411591 | €0,05 |
| 6 | Window 1 x 2 x 2 Plane, Hollow Studs, Single Hole Top and Bottom for Glass | Red | 60032 | 4507686 | — |
| 1 | Plate Special 1 x 2 with Handle on End [Closed Ends] | Medium Nougat | 60478 | 6167699 | €0,06 |
| 1 | Plate Special 1 x 2 with Handle on End [Closed Ends] | Yellow | 60478 | 4515367 | €0,06 |
| 6 | Plate 1 x 12 | Black | 60479 | 4514845 | €0,23 |
| 4 | Plate 1 x 12 | Red | 60479 | 4514843 | €0,23 |
| 12 | Plate 1 x 12 | Dark Bluish Gray | 60479 | 6133611 | €0,23 |
| 1 | Equipment Hose Nozzle / Gun with Side String Hole Simplified | Light Bluish Gray | 60849 | 4514195 | €0,12 |
| 3 | Plate Round 1 x 1 with Solid Stud | Yellow | 6141 | 614124 | €0,05 |
| 1 | Plate Round 1 x 1 with Solid Stud | Medium Nougat | 6141 | 6167641 | €0,05 |
| 2 | Panel 1 x 1 x 1 Corner | Yellow | 6231 | 4201587 | €0,07 |
| 4 | Panel 1 x 1 x 1 Corner | White | 6231 | 623101 | €0,07 |
| 4 | Panel 1 x 1 x 1 Corner | Red | 6231 | 4190219 | €0,07 |
| 15 | Tile 1 x 3 | Light Bluish Gray | 63864 | 4558169 | €0,11 |
| 2 | Tile 1 x 3 | Light Bluish Gray | 63864 | 6023083 | €0,11 |
| 5 | Technic Brick 1 x 1 with Pin Hole | Yellow | 6541 | 654124 | €0,07 |
| 12 | Technic Brick 1 x 1 with Pin Hole | Black | 6541 | 4119014 | €0,07 |
| 5 | Technic Brick 1 x 1 with Pin Hole | Dark Bluish Gray | 6541 | 4210639 | €0,07 |
| 1 | Plate Special 2 x 4 with Groove and Two Center Studs (Jumper) | Red | 65509 | 6393344 | €0,18 |
| 1 | Bar, Angled with 1 x 1 Round Plate / Stud on End | Light Bluish Gray | 65578 | 6510189 | €0,10 |
| 6 | Tile 1 x 6 with Groove | Yellow | 6636 | 663624 | €0,13 |
| 4 | Tile 1 x 6 with Groove | Black | 6636 | 4118785 | €0,13 |
| 6 | Tile 1 x 6 with Groove | Light Bluish Gray | 6636 | 4211549 | €0,13 |
| 4 | Plate Special 1 x 2 with Wheel Holder, Reinforced Underside | Light Bluish Gray | 66897 | 6395349 | €0,48 |
| 4 | Tile 2 x 6 | Red | 69729 | 6335578 | €0,22 |
| 3 | Technic Brick 1 x 1 with Axle Hole | Medium Nougat | 73230 | 6457557 | €0,17 |
| 12 | Technic Brick 1 x 1 with Axle Hole | Dark Bluish Gray | 73230 | 6362259 | €0,17 |
| 1 | Bracket 1 x 1 - 1 x 2 Inverted | Yellow | 73825 | 6330893 | €0,10 |
| 2 | Hose Rigid 3mm D. 18L / 14.4cm | Black | 75c18 | 4291611 | — |
| 2 | Bar 2L with Stop in Center | Red | 78258 | 6399645 | €0,10 |
| 1 | Plate 1 x 5 | White | 78329 | 6350399 | €0,16 |
| 1 | Plate 1 x 5 | Red | 78329 | 6371582 | €0,16 |
| 4 | Plate 1 x 5 | Light Bluish Gray | 78329 | 6372029 | €0,16 |
| 4 | Bracket 1 x 1 - 1 x 2 | White | 79389 | 6442358 | €0,10 |
| 1 | Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] | Light Bluish Gray | 85080 | 4567448 | €0,10 |
| 1 | Plate Round 1 x 1 with Open Stud | Light Bluish Gray | 85861 | 6338221 | €0,04 |
| 2 | Tile 2 x 4 with Groove | Black | 87079 | 4560180 | €0,16 |
| 2 | Tile 2 x 4 with Groove | Yellow | 87079 | 4560181 | €0,16 |
| 3 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Yellow | 87580 | 6126050 | €0,07 |
| 1 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Black | 87580 | 6126049 | €0,07 |
| 4 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Red | 87580 | 6126048 | €0,07 |
| 2 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | White | 87580 | 6126046 | €0,07 |
| 2 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Light Bluish Gray | 87580 | 6126082 | €0,07 |
| 13 | Plate Special 2 x 2 with Groove and Center Stud (Jumper) | Dark Bluish Gray | 87580 | 6126083 | €0,07 |
| 1 | Bar 3L | Black | 87994 | 6093525 | €0,06 |
| 1 | Minifig Trophy Statuette | Dark Red | 90398 | 6107894 | €0,30 |
| 1 | Plate 16 x 16 | Black | 91405 | 6306097 | €2,98 |
| 1 | Plate 2 x 14 | Light Bluish Gray | 91988 | 4662161 | €0,41 |
| 4 | Tyre 17.5 x 6 with Shallow Staggered Treads and Middle Band | Black | 92409 | 4617848 | €0,23 |
| 1 | Plate 8 x 16 | Black | 92438 | 6094066 | €2,17 |
| 4 | Wheel 11 x 6 with 8 Spokes | Light Bluish Gray | 93593 | 4621178 | — |
| 1 | Brick and Axle Separator v2.0 | Orange | 96874 | 4654448 | — |
| 3 | Tile Round 1 x 1 | Yellow | 98138 | 6284577 | €0,04 |
| 4 | Tile Round 1 x 1 | Red | 98138 | 6284574 | €0,04 |
| 3 | Tile Round 1 x 1 | Dark Blue | 98138 | 6284584 | €0,04 |
| 2 | Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] | Light Bluish Gray | 99563 | 6134378 | €0,05 |
| 1 | Bracket 1 x 2 - 1 x 2 | Black | 99781 | 6163471 | €0,10 |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/40505-1-building-systems
- 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/40505-1-building-systems