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.
5,999 pieces in 608 part and color combinations, plus 4 minifigures.
The official piece count includes the 21 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.
Plate 1 x 1Red ×1Trans-Red ×13Trans-Red is see-through: hold the piece up to a light.
Plate 1 x 1White ×82Trans-Clear ×3Trans-Clear is see-through: hold the piece up to a light.
Plate Round 1 x 1 with Solid StudWhite ×6Trans-Clear ×19Trans-Clear is see-through: hold the piece up to a light.
Tile 1 x 1 with GrooveWhite ×2Trans-Clear ×4Trans-Clear is see-through: hold the piece up to a light.
Plate 1 x 1Trans-Brown ×45Dark Bluish Gray ×25Trans-Brown is see-through: hold the piece up to a light.
Equipment Wand [Individual]Reddish Brown ×1Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
39 more look-alike pairs
Brick 1 x 1Tan ×111Dark Tan ×26Tan is lighter than Dark Tan.
Brick 1 x 2Tan ×40Dark Tan ×8Tan is lighter than Dark Tan.
Brick 1 x 4Tan ×18Dark Tan ×2Tan is lighter than Dark Tan.
Brick 2 x 2Tan ×4Dark Tan ×6Tan is lighter than Dark Tan.
Brick Curved 3 x 1 No StudsTan ×31Dark Tan ×6Tan is lighter than Dark Tan.
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]Tan ×2Dark Tan ×6Tan is lighter than Dark Tan.
Brick Sloped 45° 2 x 1 with Bottom PinTan ×11Dark Tan ×9Tan is lighter than Dark Tan.
Plate 1 x 1Tan ×50Dark Tan ×68Tan is lighter than Dark Tan.
Plate 1 x 2Tan ×72Dark Tan ×76Tan is lighter than Dark Tan.
Plate 1 x 3Tan ×21Dark Tan ×5Tan is lighter than Dark Tan.
Plate 1 x 4Tan ×18Dark Tan ×38Tan is lighter than Dark Tan.
Plate 1 x 6Tan ×29Dark Tan ×9Tan is lighter than Dark Tan.
Plate 1 x 8Tan ×19Dark Tan ×13Tan is lighter than Dark Tan.
Plate 2 x 2Tan ×37Dark Tan ×17Tan is lighter than Dark Tan.
Plate 2 x 2 CornerTan ×20Dark Tan ×84Tan is lighter than Dark Tan.
Plate 2 x 3Tan ×6Dark Tan ×31Tan is lighter than Dark Tan.
Plate 2 x 6Tan ×6Dark Tan ×10Tan is lighter than Dark Tan.
Plate 2 x 8Tan ×5Dark Tan ×30Tan is lighter than Dark Tan.
Plate 4 x 6Tan ×1Dark Tan ×1Tan is lighter than Dark Tan.
Plate Round Corner 4 x 4Tan ×2Dark Tan ×12Tan is lighter than Dark Tan.
Plate Round Half 3 x 6 with 1 x 2 CutoutTan ×4Dark Tan ×7Tan is lighter than Dark Tan.
Plate Special 1 x 4 with 2 Studs, 3 Bottom TubesTan ×8Dark Tan ×4Tan is lighter than Dark Tan.
Tile 1 x 1 with GrooveTan ×36Dark Tan ×60Tan is lighter than Dark Tan.
Tile 1 x 2 with GrooveTan ×24Dark Tan ×12Tan is lighter than Dark Tan.
Tile 1 x 4 with GrooveTan ×1Dark Tan ×1Tan is lighter than Dark Tan.
Tile 2 x 2 with GrooveTan ×26Dark Tan ×3Tan is lighter than Dark Tan.
Tile 2 x 4 with GrooveTan ×1Dark Tan ×12Tan is lighter than Dark Tan.
Tile Round 1 x 1 QuarterBlack ×2Dark Blue ×4Black is yellower and darker than Dark Blue.
Brick 1 x 12Black ×3Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick 1 x 2 x 2 with Inside Stud HolderBlack ×2Dark Bluish Gray ×19Black is darker than Dark Bluish Gray.
Brick 1 x 4Black ×3Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick 2 x 8Black ×1Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Black ×1Dark Bluish Gray ×31Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 Double / Inverted with Bottom Stud HolderBlack ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]Black ×1Dark Bluish Gray ×16Black is darker than Dark Bluish Gray.
Cone 1 x 1 [Top Groove]Black ×4Dark Bluish Gray ×12Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Solid StudBlack ×1Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Tile 1 x 1 with GrooveBlack ×1Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Tile Round 1 x 1 QuarterBlack ×2Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Minifig Pot Small with Handle HoldersPearl TitaniumPart 98374Element 6363146 or 6153593×1
Technic Axles
1 piece
Technic Axle 4BlackPart 3705Element 370526×1
Technic Connectors
1 piece
Technic Pin Connector Hub with 4 Bars at 90°, Through Pin HoleReddish BrownPart 3803Element 6439301×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
4 figures
Godric GryffindorMinifigure, checked as a whole figure×1
Salazar SlytherinMinifigure, checked as a whole figure×1
Rowena RavenclawMinifigure, checked as a whole figure×1
Helga HufflepuffMinifigure, 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.
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.