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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Buckingham Palace

Checking

21029 Buckingham Palace

780 pieces in 99 part and color combinations.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 241 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×7
  • Plate 2 x 14 Black Part 91988 Element 6001494 ×4
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×8
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×2
  • Plate 1 x 10 Dark Bluish Gray Part 4477 Element 4257526 or 4210816 ×2
  • Plate 2 x 16 Dark Bluish Gray Part 4282 Element 4210796 ×1
  • Plate 4 x 8 Dark Bluish Gray Part 3035 Element 4211061 ×3
  • Plate 8 x 16 Dark Bluish Gray Part 92438 Element 4654613 ×3
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×11
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×4
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×10
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×4
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×2
  • Plate 3 x 3 Light Bluish Gray Part 11212 Element 6015347 ×2
  • Plate 4 x 4 Light Bluish Gray Part 3031 Element 4243797 or 4211403 ×3
  • Plate 1 x 1 Olive Green Part 3024 Element 6058245 or 6031105 1 spare in the box ×8
  • Plate 1 x 3 Red Part 3623 Element 362321 ×2
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 1 spare in the box ×22
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×12
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×12
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×25
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×4
  • Plate 1 x 8 Tan Part 3460 Element 4114324 or 346005 ×4
  • Plate 2 x 2 Corner Tan Part 2420 Element 4114077 or 242005 ×2
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×8
  • Plate 2 x 8 Tan Part 3034 Element 4113988 or 303405 ×4
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box Also in White ×57
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×8
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box Also in Trans-Clear ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×3

Tiles 203 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box Also in Dark Bluish Gray ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 Also in Dark Bluish Gray ×4
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×8
  • Tile 1 x 8 with 'Buckingham Palace' Print Black Part 4162pr0046 Element 6146710 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×5
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box Also in Black ×14
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 Also in Black ×5
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×14
  • Tile 1 x 1 with Groove Dark Tan Part 3070b Element 6055172 1 spare in the box Also in Tan ×12
  • Tile 1 x 2 with Groove Dark Tan Part 3069b Element 4496699 ×22
  • Tile 1 x 6 with Groove Dark Tan Part 6636 Element 4507047 or 4251129 ×6
  • Tile 2 x 2 with Groove Dark Tan Part 3068b Element 4507045 or 4251986 ×33
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×10
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×19
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×2
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×6
  • Tile 1 x 8 with Groove Light Bluish Gray Part 4162 Element 4211481 ×2
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 1 spare in the box ×1
  • Tile 1 x 3 Red Part 63864 Element 4533742 ×1
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 1 spare in the box Also in Dark Tan ×10
  • Tile 1 x 4 with Groove Tan Part 2431 Element 4550324 or 4542398 ×2
  • Tile 2 x 4 with Groove Tan Part 87079 Element 6122047 or 4610209 ×8
  • Tile 1 x 2 with Groove Trans-Clear Part 3069b Element 6514223 or 6251294 ×16

Plates Round Curved and Dishes 97 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×6
  • Plate Round 1 x 1 with Open Stud Light Bluish Gray Part 85861 Element 6168647 or 6124825 1 spare in the box ×17
  • Plate Round 4 x 4 with Pin Hole Light Bluish Gray Part 60474 Element 4515351 ×2
  • Plate Round Corner 4 x 4 Light Bluish Gray Part 30565 Element 4579294 or 4211662 ×4
  • Plate Round 1 x 1 with Solid Stud Tan Part 6141 Element 4161734 or 614105 1 spare in the box ×62
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×6

Plates Special 56 pieces

  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Black Part 99206 Element 6052126 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Tan Part 15573 Element 6092591 ×22
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Tan Part 87580 Element 6126075 or 4578032 ×3
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Light Bluish Gray Part 61252 Element 6335378 or 4541978 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 15573 Element 6066097 or 4211451 ×6
  • Plate Special 1 x 2 with Door Rail Tan Part 32028 Element 4239062 or 4160483 ×11
  • Plate Special 1 x 1 with Tooth White Part 49668 Element 6601935 or 4224792 ×4
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) White Part 18674 Element 6615555 or 6093053 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Yellow Part 4081b Element 6281992 or 4632569 ×1

Bricks Special 39 pieces

  • Brick Special 1 x 1 with Headlight Tan Part 4070 Element 4280137 or 4118793 ×14
  • Brick Special 1 x 1 with Stud on 1 Side Tan Part 87087 Element 4579260 ×18
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×1
  • Brick Special 1 x 2 with 2 Studs on 1 Side White Part 11211 Element 6550150 or 6058177 ×6

Bricks 36 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×8
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×4
  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×12
  • Brick 1 x 1 x 3 Tan Part 14716 Element 6057517 ×2
  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×10

Bricks Sloped 33 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×13
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×6
  • Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×14

Tiles Round and Curved 30 pieces

  • Tile Round 1 x 1 Olive Green Part 98138 Element 6284595 or 6047015 1 spare in the box ×22
  • Tile Round 1 x 1 Tan Part 98138 Element 6284573 or 6139649 1 spare in the box ×8

Panels 14 pieces

  • Panel 1 x 1 x 1 Corner Tan Part 6231 Element 4612603 or 4568287 ×8
  • Panel 1 x 2 x 1 [Rounded Corners] Tan Part 4865b Element 6146221 ×5
  • Panel 2 x 2 x 1 Corner Tan Part 91501 Element 6181752 or 4593748 ×1

Bars, Ladders and Fences 11 pieces

  • Fence Lattice 1 x 4 x 1 Dark Bluish Gray Part 3633 Element 4219725 ×4
  • Bar 4L (Lightsaber Blade / Wand) Light Bluish Gray Part 30374 Element 6116608 or 4211628 ×1
  • Bar 4L (Lightsaber Blade / Wand) Tan Part 30374 Element 6116614 or 4508646 ×6

Technic Bricks 6 pieces

  • Technic Brick 1 x 1 with Pin Hole Tan Part 6541 Element 4179771 or 654105 ×6

Windows and Doors 5 pieces

  • Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top Black Part 30046 Element 6173105 or 3004626 ×1
  • Window 1 x 2 x 2 2/3 with Rounded Top Light Bluish Gray Part 30044 Element 4523353 or 4211627 ×1
  • Window 1 x 2 x 2 Castle Tan Part 90195 Element 4642933 or 4622128 ×3

Minifig Accessories 4 pieces

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Light Bluish Gray Part 64644 Element 4657366 ×4

Bricks Curved 2 pieces

  • Brick Arch 1 x 3 Tan Part 4490 Element 4618651 or 4519915 ×2

Bricks Round and Cones 1 piece

  • Brick Round 1 x 1 Open Stud White Part 3062b Element 6619283 or 306201 ×1

Minifigs 1 piece

  • Minifig Trophy Statuette Pearl Gold Part 90398 Element 6335932 or 6301337 1 spare in the box ×1

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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