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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.

Mini Disney The Haunted Mansion

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40521 Mini Disney The Haunted Mansion

675 pieces in 112 part and color combinations, plus 1 minifigure.

The official piece count includes the 5 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

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 240 pieces

  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 8 x 8 Black Part 41539 Element 4166619 ×2
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×3
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×2
  • Plate 1 x 1 Dark Green Part 3024 Element 6618077 or 6055169 3 spares in the box ×52
  • Plate 1 x 2 Dark Orange Part 3023 Element 4570877 or 4162217 ×8
  • Plate 1 x 4 Dark Orange Part 3710 Element 6074892 or 4603740 ×1
  • Plate 2 x 3 Dark Orange Part 3021 Element 6359717 or 6224275 ×7
  • Plate 2 x 4 Dark Orange Part 3020 Element 4535928 or 4164449 ×9
  • Plate 4 x 6 Dark Red Part 3032 Element 6020122 or 4167304 ×2
  • Plate 1 x 6 Dark Tan Part 3666 Element 6015424 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×3
  • Plate 4 x 8 Light Bluish Gray Part 3035 Element 4211407 ×1
  • Plate 6 x 8 Light Bluish Gray Part 3036 Element 4211408 ×1
  • Plate 1 x 1 Medium Nougat Part 3024 Element 6215606 or 4645054 1 spare in the box ×2
  • Plate 1 x 1 x 2/3 with Open Stud Medium Nougat Part 86996 Element 6383946 ×2
  • Plate 1 x 1 Sand Green Part 3024 Element 6099189 or 4642429 4 spares in the box ×14
  • Plate 1 x 10 Sand Green Part 4477 Element 6328184 or 4642416 ×1
  • Plate 1 x 2 Sand Green Part 3023 Element 4655080 or 4642428 ×3
  • Plate 1 x 3 Sand Green Part 3623 Element 6069257 or 4642427 ×1
  • Plate 1 x 6 Sand Green Part 3666 Element 6099187 or 4504795 ×1
  • Plate 2 x 4 Sand Green Part 3020 Element 6249817 or 6078098 ×1
  • Plate 2 x 6 Sand Green Part 3795 Element 6194726 or 4642411 ×1
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×2
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 3 spares in the box Also in White ×34
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box Also in Trans-Clear ×3
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×40
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×3
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×4
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×6
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×3
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×9
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×6
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×3
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×2
  • Plate 3 x 3 White Part 11212 Element 6552153 or 6104805 ×1
  • Plate 6 x 10 White Part 3033 Element 4528341 or 303301 ×1
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×1

Plates Round Curved and Dishes 92 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×2
  • Plate Round Corner 6 x 6 Black Part 6003 Element 6137779 or 4496676 ×2
  • Dish 3 x 3 Inverted [Radar] Light Bluish Gray Part 43898 Element 6070564 or 4568360 ×1
  • Plate Round 1 x 1 with Open Stud Pearl Gold Part 85861 Element 6190252 or 6141499 2 spares in the box ×4
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Sand Green Part 6141 Element 6403175 or 4180076 3 spares in the box ×52
  • Plate Special 1 x 2 Rounded with 2 Open Studs Sand Green Part 35480 Element 6303004 ×23
  • Dish 3 x 3 Inverted [Radar] White Part 43898 Element 4179580 ×1
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×4
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×1

Tiles 88 pieces

  • Tile 1 x 3 Black Part 63864 Element 4558170 Also in Dark Bluish Gray ×2
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×4
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×2
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×1
  • Tile 1 x 3 Dark Bluish Gray Part 63864 Element 4568734 Also in Black ×4
  • Tile 1 x 1 with Groove Dark Orange Part 3070b Element 6143431 1 spare in the box ×4
  • Tile 1 x 4 with Groove Dark Orange Part 2431 Element 6074893 or 4165523 ×2
  • Tile 2 x 2 with Groove Dark Orange Part 3068b Element 6186423 ×2
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×5
  • Tile 1 x 1 with Groove Sand Green Part 3070b Element 6223913 or 4155202 2 spares in the box ×4
  • Tile 1 x 2 with Groove Sand Green Part 3069b Element 4616578 or 4504803 ×6
  • Tile 1 x 1 with Groove Trans-Clear Part 3070b Element 6581822 or 6254254 2 spares in the box ×8
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×36
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×4
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×2

Bricks 82 pieces

  • Brick 1 x 1 Dark Orange Part 3005 Element 6254484 or 6000643 ×4
  • Brick 1 x 1 Dark Tan Part 3005 Element 6001824 or 4497070 ×11
  • Brick 1 x 2 x 2 with Inside Stud Holder Light Bluish Gray Part 3245c Element 4211564 ×11
  • Brick 1 x 1 Sand Green Part 3005 Element 4521948 or 4517507 ×6
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×40
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×4
  • Brick 1 x 2 x 3 with Bottom Stud Holder White Part 22886 Element 6548283 or 6153776 ×1
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×1
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×1
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×1
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×2

Tiles Special 53 pieces

  • Tile Special 1 x 1 with Clip with Rounded Edges Black Part 15712 Element 6335388 or 6066102 ×6
  • Tile Special Round 1 x 1 with Hollow Bar Trans-Clear Part 20482 Element 6507895 or 6186867 1 spare in the box Also in White ×3
  • Tile Special 1 x 1 with Clip with Rounded Edges White Part 15712 Element 6348055 or 6054551 ×36
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] White Part 99563 Element 6601943 or 6210076 ×4
  • Tile Special Round 1 x 1 with Hollow Bar White Part 20482 Element 6186681 or 6178492 1 spare in the box Also in Trans-Clear ×4

Bricks Special 32 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Dark Bluish Gray Part 4733 Element 4210700 ×1
  • Brick Special 1 x 2 with 1 Center Stud on 1 Side, Bottom Stud Holder Light Bluish Gray Part 86876 Element 6383177 ×1
  • Brick Special 1 x 1 with Stud on 1 Side Reddish Brown Part 87087 Element 6062574 or 4618545 ×2
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Sand Green Part 32952 Element 6328131 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Tan Part 30136 Element 4218749 or 4114053 ×3
  • Brick Special 1 x 1 with Scroll with Open Stud White Part 20310 Element 6615551 or 6133766 ×2
  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×5
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides White Part 26604 Element 6224811 ×4
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side White Part 32952 Element 6552171 or 6548288 ×12

Bricks Sloped 20 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 ×8
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×8
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×4

Plates Special 18 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 15573 Element 6066097 or 4211451 ×4
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Pearl Gold Part 32828 Element 6335111 1 spare in the box ×2
  • Bracket 1 x 1 - 1 x 2 Inverted White Part 73825 Element 6548292 or 6337079 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×4
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] White Part 41740 Element 6249091 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) White Part 18674 Element 6615555 or 6093053 ×2

Minifig Accessories 17 pieces

  • Candlestick Pearl Gold Part 73117 Element 6326425 ×1
  • Equipment Candlestick White Part 37762 Element 6234807 ×16

Windows and Doors 16 pieces

  • Window 1 x 2 x 2 Castle Sand Green Part 90195 Element 6013299 ×16

Bars, Ladders and Fences 4 pieces

  • Bar 3L Black Part 87994 Element 6185316 or 6093525 1 spare in the box ×2
  • Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip] Dark Bluish Gray Part 48729b Element 6278155 or 4579234 1 spare in the box ×1
  • Bar 3L with Handle, Stop Ring and Side Stops (Minifig Ski Pole) Dark Bluish Gray Part 90540 Element 6250678 1 spare in the box ×1

Energy Effects 3 pieces

  • Wave / Flame Small with Pin Trans-Orange Part 37775 Element 6514274 or 6357747 2 spares in the box ×3

Minifigs 3 pieces

  • Minifig Trophy Statuette White Part 90398 Element 6551374 or 6299492 1 spare in the box ×3

Bricks Curved 2 pieces

  • Brick Curved 2 x 1 with Inverted Cutout White Part 78666 Element 6550186 or 6346616 ×2

Plants & Trees 2 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Green Part 24866 Element 6135287 1 spare in the box ×1
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Red Part 24866 Element 6206148 1 spare in the box ×1

Tiles Round and Curved 2 pieces

  • Tile 4 x 4 Curved, Macaroni Black Part 27507 Element 6458165 or 6171264 ×2

Stickers 1 piece

  • Sticker Sheet for Set 40521-1 [No Color/Any Color] Part 10100582 Element 6406951 ×1

Minifigures 1 figure

  • Dark Turquoise Torso, Dark Blue Legs, Reddish Brown Hair Minifigure, checked as a whole figure ×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

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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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