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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.

Chamber of Secrets

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4730 Chamber of Secrets

572 pieces in 150 part and color combinations, plus 5 minifigures.

LEGO counts 591 pieces. This inventory comes from a separate parts catalog and lists 597, including the 25 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

Bricks 124 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 1 x 3 Black Part 3622 Element 362226 ×2
  • Brick 12 x 24 Black Part 30072 Element 4181042 or 3007226 ×2
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×2
  • Brick 8 x 16 Black Part 4204 Element 4181615 or 4181040 ×1
  • Brick 1 x 1 Dark Gray Part 3005 Element 4114079 or 300527 ×4
  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Dark Gray Part 2453a Element 245327 ×2
  • Brick 1 x 2 Dark Gray Part 3004 Element 4113909 or 300427 ×10
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Dark Gray Part 2454a Element 4113235 or 245427 ×2
  • Brick 1 x 3 Dark Gray Part 3622 Element 4114313 or 362227 ×4
  • Brick 1 x 4 Dark Gray Part 3010 Element 4114308 or 301027 ×19
  • Brick 1 x 6 Dark Gray Part 3009 Element 4114082 or 300927 ×3
  • Brick 2 x 2 Dark Gray Part 3003 Element 4110008 or 300327 ×2
  • Brick 2 x 4 Dark Gray Part 3001 Element 4113855 or 300127 ×10
  • Brick 8 x 16 Dark Gray Part 4204 Element 4181114 or 4118869 ×1
  • Brick 1 x 1 Light Gray Part 3005 Element 300502 ×2
  • Brick 1 x 12 Light Gray Part 6112 Element 611202 ×4
  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×11
  • Brick 1 x 4 Light Gray Part 3010 Element 301002 ×3
  • Brick 1 x 6 x 5 with Stone and Open Mouth Snake Print Light Gray Part 3754pr0004 Element 4181044 ×4
  • Brick 2 x 2 Light Gray Part 3003 Element 4103591 or 300352 ×2
  • Brick 2 x 2 Corner Light Gray Part 2357 Element 235752 or 235702 ×4
  • Brick 2 x 3 Light Gray Part 3002 Element 300252 or 300202 ×1
  • Brick 2 x 4 Light Gray Part 3001 Element 4116259 or 300102 ×2
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×12
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Tan Part 2454a Element 245405 ×4
  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×1
  • Brick 1 x 1 Trans-Green Part 3005 Element 4561489 or 4112802 ×3
  • Brick 1 x 1 Trans-Red Part 3005 Element 4597292 or 4112801 ×3
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×2

Plates 115 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×4
  • Plate 1 x 2 Black Part 3023 Element 302326 ×8
  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×3
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 2 x 8 Black Part 3034 Element 303426 ×8
  • Plate 6 x 6 Black Part 3958 Element 395826 ×5
  • Plate 1 x 1 Dark Gray Part 3024 Element 4143684 or 4113910 ×2
  • Plate 1 x 2 Dark Gray Part 3023 Element 4111983 or 302327 ×15
  • Plate 1 x 8 Dark Gray Part 3460 Element 346027 ×2
  • Plate 2 x 2 Dark Gray Part 3022 Element 4114003 or 302227 ×3
  • Plate 2 x 3 Dark Gray Part 3021 Element 4108041 or 302127 ×2
  • Plate 2 x 6 Dark Gray Part 3795 Element 379527 ×2
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×19
  • Plate 1 x 3 Light Gray Part 3623 Element 362302 ×2
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×4
  • Plate 2 x 12 Light Gray Part 2445 Element 244502 ×8
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×2
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×3
  • Plate 2 x 6 Light Gray Part 3795 Element 379502 ×1
  • Plate 2 x 8 Light Gray Part 3034 Element 303402 ×2
  • Plate 1 x 2 Sand Green Part 3023 Element 4655080 or 4642428 ×4
  • Plate 2 x 2 Sand Green Part 3022 Element 6186823 or 6001196 ×4
  • Plate 2 x 4 Sand Green Part 3020 Element 6249817 or 6078098 ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1

Bricks Sloped 62 pieces

  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Gray Part 3040b Element 4121970 or 4109985 ×2
  • Brick Sloped 45° 2 x 4 Dark Gray Part 3037 Element 4121718 or 303727 ×2
  • Brick Sloped 33° 3 x 2 Light Gray Part 3298 Element 329802 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×2
  • Brick Sloped 45° 2 x 2 Light Gray Part 3039 Element 303902 ×2
  • Brick Sloped 65° 2 x 2 x 2 Smooth without Bottom Tube Light Gray Part 3678a Element 4181041 or 4119237 ×1
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Light Gray Part 4460a Element 446002 ×4
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Light Gray Part 3684 Element 4248057 or 4143978 ×4
  • Brick Sloped Inverted 45° 2 x 1 Light Gray Part 3665 Element 366502 ×2
  • Brick Sloped Inverted 75° 2 x 1 x 3 Light Gray Part 2449 Element 4160952 or 244952 ×16
  • Brick Sloped 45° 2 x 1 with Bottom Pin Sand Green Part 3040b Element 6083976 or 4597014 ×22
  • Roof / Tower 6 x 8 x 9 Sand Green Part 33215 Element 6018577 or 4598536 ×1

Bricks Round and Cones 52 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×8
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×1
  • Brick Round 1 x 1 Open Stud Dark Gray Part 3062b Element 4113912 or 306227 ×10
  • Cone 1 x 1 [No Top Groove] Sand Green Part 4589 Element 4158711 ×21
  • Cone 2 x 2 x 2, Open Stud Sand Green Part 3942c Element 6022157 or 4593755 ×5
  • Cone 4 x 4 x 2, Axle Hole [Plain] Sand Green Part 3943b Element 4593756 or 4508645 ×3
  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×4

Tiles 50 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×4
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×3
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×4
  • Tile 1 x 2 with Groove Dark Gray Part 3069b Element 4109959 or 306927 ×2
  • Tile 2 x 2 with Groove Dark Gray Part 3068b Element 4109986 or 306827 ×8
  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×12
  • Tile 1 x 4 with Groove Light Gray Part 2431 Element 243102 ×6
  • Tile 2 x 2 with Groove Light Gray Part 3068b Element 306802 ×3
  • Tile 2 x 2 with Scroll and Potions Print (HP) Sand Green Part 3068bpr0086 Element 4164304 ×1
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×4
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×1

Bricks Curved 38 pieces

  • Brick Arch 1 x 12 x 3 Black Part 6108 Element 4566307 or 610826 ×2
  • Brick Arch 1 x 4 Black Part 3659 Element 365926 ×1
  • Brick Arch 1 x 5 x 4 [Continuous Bow] Black Part 2339 Element 4519925 or 4159140 ×16
  • Brick Arch 1 x 4 Dark Gray Part 3659 Element 365927 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Gray Part 6091 Element 4162486 or 4118747 ×18

Bricks Special 26 pieces

  • Brick Special 1 x 2 Palisade [aka Log] Black Part 30136 Element 4644456 or 4519980 ×20
  • Brick Special 1 x 2 with Pin Dark Gray Part 2458 Element 4113907 or 245827 ×2
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Dark Gray Part 30237a Element 4113207 ×2
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Light Gray Part 30237a Element 4117069 ×2

Hinges, Arms and Turntables 18 pieces

  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×4
  • Hinge Brick 1 x 4 [Lower] Dark Gray Part 3831 Element 4162477 or 383127 ×4
  • Hinge Brick 1 x 4 [Upper] Dark Gray Part 3830 Element 4162475 or 383027 ×4
  • Plate Special 6 x 8 Trap Door Frame Horizontal Dark Gray Part 30041 Element 4160889 or 4113239 ×1
  • Plate Special 4 x 6 x 2/3 with Trap Door Hinge Light Gray Part 30042 Element 4106975 ×1
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×4

Plates Special 16 pieces

  • Plate Special 1 x 4 with Bar Down Black Part 30043 Element 6172997 or 3004326 ×8
  • Plate Special 4 x 4, Studs on One Edge Plain] Black Part 6179 Element 617926 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Gray Part 3794a Element 379402 ×3
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Light Gray Part 2444 Element 244402 ×2
  • Plate Special 2 x 2 with 2 Pin Holes Light Gray Part 2817 Element 281702 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) White Part 3794a ×1

Animal / Creature Body Parts 11 pieces

  • Animal Body Part, Alligator / Crocodile / Dragon Upper Jaw / Dinosaur Tongue Dark Gray Part 6027 Element 4181043 or 4114044 ×4
  • Animal / Creature Body Part, Tail / Neck, Base Section with Black Pin Sand Green Part 40395 Element 4153890 ×1
  • Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section Sand Green Part 40379 Element 6603878 or 4508459 ×1
  • Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with Pin, Round Pin Hole Sand Green Part 40378 Element 4152977 ×1
  • Animal Body Part, Snake / Serpent Body, Basilisk with Scales Print Sand Green Part 43936pr0001 Element 4178979 ×2
  • Animal Body Part, Snake / Serpent Head, Basilisk with Dark Green, Dark Tan, and Light Gray Scales Print Sand Green Part 43746pr0001 Element 4178967 ×1
  • Animal Body Part, Snake / Serpent Neck S-Curve with Fixed Pin with Scales Print (Basilisk) Sand Green Part 43750pr0001 Element 4178984 ×1

Animals / Creatures 8 pieces

  • Animal, Snake, Small Black Part 30115 Element 4107585 ×5
  • Animal, Bird, Owl Large, Rounded Features Light Gray Part 40232 Element 4153281 ×1
  • Creature, Phoenix (Fawkes) Red Part 43744 Element 4178952 ×1
  • Insect, Spider Trans-Neon Green Part 30238 Element 6109894 or 4120133 ×1

Energy Effects 8 pieces

  • Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a ×8

Panels 8 pieces

  • Panel 1 x 2 x 1 [Square Corners] Dark Gray Part 4865a Element 4118746 ×1
  • Panel 3 x 4 x 6 with Arched Window Dark Gray Part 30246 Element 4118878 ×4
  • Panel 3 x 4 x 6 with Arched Window Tan Part 30246 Element 6396790 or 4508648 ×3

Tiles Special 8 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Black Part 2555 Element 255526 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips Dark Gray Part 2555 Element 4112884 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Gray Part 2412b Element 4124056 or 241227 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Light Blue Part 2412b Element 6147051 or 4143190 ×3

Bars, Ladders and Fences 6 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×1
  • Bar 4L (Lightsaber Blade / Wand) Brown Part 30374 Element 4157700 ×3
  • Bar 4L (Lightsaber Blade / Wand) Dark Nougat Part 30374 Element 4159161 ×1
  • Bar 4L (Lightsaber Blade / Wand) Light Gray Part 30374 Element 4129988 ×1

Plates Round Curved and Dishes 6 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Gray Part 2654 Element 265402 ×1
  • Plate Round Corner 3 x 3 Light Gray Part 30357 Element 4168076 or 4125238 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×2

Minifig Shields, Weapons, & Tools 5 pieces

  • Weapon Sword / Greatsword Round Chrome Silver Part 59 Element 4649842 or 71014 ×1
  • Weapon Dagger / Knife Glow In Dark Opaque Part 37 ×2
  • Shield Ovoid with Open Mouth Snake Print Light Gray Part 2586pr0025 Element 4180821 ×2

Minifig Accessories 3 pieces

  • Book 2 x 3 with Lock and Soiled Spots Print Brown Part 33009pr0002 Element 4180754 ×1
  • Equipment Goblet / Glass Trans-Clear Part 2343 Element 6166107 or 3000240 ×1
  • Tap 1 x 2 with Dual Handles White Part 6936 ×1

Technic Pins 3 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×2

Technic Bricks 2 pieces

  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×2

Windows and Doors 2 pieces

  • Window 1 x 2 x 2 & 2/3 Pane Twisted Bar with Rounded Top Black Part 30045 Element 4105221 ×1
  • Window 1 x 2 x 2 2/3 with Rounded Top Light Gray Part 30044 Element 4129969 ×1

Minifig Headwear 1 piece

  • Hat, Wizard Black Part 6131 Element 4492341 or 4106559 ×1

Minifigures 5 figures

  • Ron Weasley, Yellow Skin, Gryffindor Sweater with Crest, Cape with Stars Minifigure, checked as a whole figure ×1
  • Harry Potter, Yellow Skin, Gryffindor Sweater with Crest, Cape with Stars Minifigure, checked as a whole figure ×1
  • Professor Gilderoy Lockhart, Sand Red Outfit Minifigure, checked as a whole figure ×1
  • Ginny Weasley, Yellow Skin, Gryffindor Sweater with Crest, Cape with Stars Minifigure, checked as a whole figure ×1
  • Tom Riddle, Yellow Skin, Slytherin Sweater with Crest, Cape 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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