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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.

Hogwarts Castle: Room of Requirement

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40770 Hogwarts Castle: Room of Requirement

199 pieces in 84 part and color combinations, plus 1 minifigure.

LEGO counts 202 pieces. This inventory comes from a separate parts catalog and lists 203, including the 4 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.

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Piece checklist

Plates 42 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box ×4
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 1 x 2 Dark Green Part 3023 Element 6618076 or 6013797 ×2
  • Plate 1 x 1 Dark Orange Part 3024 Element 6186012 or 4603739 1 spare in the box ×1
  • Plate 1 x 2 Dark Tan Part 3023 Element 4528604 or 4497082 ×2
  • Plate 4 x 8 Dark Tan Part 3035 Element 6006524 or 4246954 ×2
  • Plate 1 x 2 Green Part 3023 Element 302328 ×1
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×1
  • Plate 2 x 3 Medium Nougat Part 3021 Element 6334099 or 4645060 ×2
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 1 spare in the box ×6
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×3
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×3
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×6
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×2

Plates Round Curved and Dishes 31 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×1
  • Plate Special 1 x 2 Rounded with 2 Open Studs Black Part 35480 Element 6210270 ×15
  • Plate Special 1 x 2 Rounded with 2 Open Studs Light Bluish Gray Part 35480 Element 6248890 ×2
  • Plate Round 1 x 1 with Solid Stud Medium Nougat Part 6141 Element 6167641 1 spare in the box ×9
  • Plate Special 1 x 2 Rounded with 2 Open Studs Reddish Brown Part 35480 Element 6248944 ×2
  • Plate Special 4 x 4 with 3 x 3 Quarter Round Cutout Tan Part 35044 Element 6371465 ×2

Bricks Special 20 pieces

  • Brick Special 1 x 2 Palisade [aka Log] Dark Bluish Gray Part 30136 Element 4211095 ×1
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Tan Part 32952 Element 6232135 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Tan Part 30136 Element 4218749 or 4114053 ×17

Plates Special 18 pieces

  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×3
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Black Part 60470b Element 6310268 or 4556158 ×2
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Dark Bluish Gray Part 60897 Element 6489464 or 6296892 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×3
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Dark Bluish Gray Part 32828 Element 6388118 1 spare in the box ×1
  • Bracket 1 x 1 - 1 x 2 Inverted Dark Orange Part 73825 Element 6522737 ×1
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×2
  • Plate Special 2 x 2 with Only 2 studs Sand Blue Part 33909 Element 6398673 ×4

Tiles 16 pieces

  • Tile 1 x 1 with Groove Dark Red Part 3070b Element 4550169 or 4187196 1 spare in the box ×1
  • Tile 1 x 1 with Groove Dark Tan Part 3070b Element 6055172 1 spare in the box ×3
  • Tile 1 x 4 with Groove Dark Tan Part 2431 Element 6175927 ×5
  • Tile 1 x 6 with Groove Dark Tan Part 6636 Element 4507047 or 4251129 ×4
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×1
  • Tile 1 x 4 with Groove Reddish Brown Part 2431 Element 4211194 ×2

Bricks 14 pieces

  • Brick 2 x 2 Dark Orange Part 3003 Element 6212081 or 4597486 ×1
  • Brick 2 x 2 Corner Olive Green Part 2357 Element 6469102 ×1
  • Brick 2 x 2 Corner Orange Part 2357 Element 6212079 or 4130347 ×1
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×1
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×1
  • Brick 1 x 1 x 5 with Solid Stud Tan Part 2453b Element 4112980 ×3
  • Brick 1 x 2 x 2 with Inside Stud Holder Tan Part 3245c Element 4159279 ×1
  • Brick 1 x 2 x 3 with Bottom Stud Holder Tan Part 22886 Element 6445058 ×1
  • Brick 2 x 2 Corner Tan Part 2357 Element 4124455 or 4112541 ×4

Bricks Round and Cones 12 pieces

  • Cone 1 x 1 [Top Groove] Dark Bluish Gray Part 59900 Element 4529240 ×2
  • Cone 1.17 x 1.17 x 2/3 (Fez) Flat Silver Part 85975 Element 6317181 ×1
  • Cone 1 x 1 [Top Groove] Tan Part 59900 Element 4529237 ×8
  • Brick Round 1 x 1 Open Stud Trans-Yellow Part 3062b Element 6514236 or 6238674 ×1

Hinges, Arms and Turntables 6 pieces

  • Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly] Black Part 1927 Element 6672302 or 6416444 ×3
  • Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly] Light Bluish Gray Part 1927 Element 6416524 ×3

Tiles Round and Curved 6 pieces

  • Tile Round 1 x 1 Quarter Black Part 25269 Element 6172383 1 spare in the box ×3
  • Tile Round 1 x 1 Dark Bluish Gray Part 98138 Element 6284596 or 6222416 1 spare in the box ×1
  • Tile Round 1 x 1 Quarter Dark Orange Part 25269 Element 6228968 1 spare in the box ×1
  • Tile Round 1 x 1 Quarter Dark Red Part 25269 Element 6311890 1 spare in the box ×1

Windows and Doors 6 pieces

  • Glass for Window 1 x 4 x 3 [Opening] Black Part 60603 Element 6514144 or 6476096 ×1
  • Window 1 x 2 x 2 Plane, Hollow Studs, Single Hole Top and Bottom for Glass Black Part 60032 Element 4539128 or 4507687 ×4
  • Window 1 x 4 x 3 without Shutter Tabs Reddish Brown Part 60594 Element 4597419 or 4595889 ×1

Bricks Curved 5 pieces

  • Brick Arch 1 x 3 x 3 [Gothic] Medium Nougat Part 13965 Element 6488532 ×4
  • Brick Curved 2 x 1 with Inverted Cutout Tan Part 78666 Element 6383295 ×1

Bricks Sloped 4 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×1
  • Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Trans-Orange Part 22388 Element 6581704 or 6250584 1 spare in the box ×1
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×2

Minifig Accessories 4 pieces

  • Equipment Wand [Individual] Dark Brown Part 36752a ×2
  • Equipment Goblet / Glass Pearl Gold Part 2343 Element 4505990 ×1
  • Equipment Lantern Pearl Gold Part 37776 Element 6283475 ×1

Panels 3 pieces

  • Panel 1 x 6 x 5 Tan Part 59349 Element 4512688 ×2
  • Panel 1 x 6 x 7 with 2 Columns and Arch Tan Part 40066 Element 6273864 ×1

Containers 2 pieces

  • Treasure Chest Bottom with Rear Slots, No Groove Reddish Brown Part 4738c Element 4533101 ×1
  • Treasure Chest Lid, Flat with 2 Studs Reddish Brown Part 80835 Element 6377651 ×1

Minifigs 2 pieces

  • Minifig Trophy Statuette Black Part 90398 Element 6335910 or 6107890 1 spare in the box ×1
  • Minifig Trophy Statuette White Part 90398 Element 6551374 or 6299492 1 spare in the box ×1

Technic Bricks 2 pieces

  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×2

Windscreens and Fuselage 2 pieces

  • Windscreen 4 x 4 x 4 2/3 with Handle Dark Green Part 11289 Element 6514341 or 6392972 ×2

Energy Effects 1 piece

  • Smoke / Bubbles with Anti-Stud Olive Green Part 5533 Element 6539362 ×1

Minifig Headwear Accessories 1 piece

  • Headwear Accessory Crown / Tiara Pearl Gold Part 33322 Element 6605929 or 6173109 1 spare in the box ×1

Stickers 1 piece

  • Sticker Sheet for Set 40770-1 [No Color/Any Color] Part 10114412 Element 6560622 ×1

Tiles Special 1 piece

  • Tile Special Round 1 x 1 with Hollow Bar Dark Bluish Gray Part 20482 Element 6271752 1 spare in the box ×1

Minifigures 1 figure

  • Neville Longbottom, Light Bluish Grey Sweater 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

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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