Hogwarts Castle

Notable parts

• 6 parts come in a colour no other set has for that mould: Book 2 x 3 [Plain] (Green); Door 2 x 5 x 5 Swivel, Bracket Base (Light Bluish Gray); Door Frame 2 x 8 x 6 Swivel without Bottom Notches (Dark Bluish Gray); Door Frame Arched 1 x 8 x 12 (Dark Bluish Gray); Hat, Wizard (Light Purple); and 1 more.
• 4 printed parts are only in this set: Brick Sloped 65° 2 x 2 x 2 with Bottom Tube with Trelawney Skirt and Belt Print (Blue); Dish 2 x 2 Inverted [Radar] with HP Clock Top Print (White); Dish 6 x 6 Inverted (Radar) with Hollow Studs and Clock Face Print (White); Panel 1 x 4 x 3 with Potions Print (Reddish Brown).
• 18 parts appear in only a few other sets: Technic Brick 1 x 8 [7 Pin Holes] (Tan) ×4 — also in 3451 Sopwith Camel; Door 1 x 4 x 11 1/3 Arched Top (Reddish Brown) ×2 — also in 8813 Battle at the Pass; Flag 4 x 1 Wavy [First Wave Left] (Dark Bluish Gray) — also in 10176 King's Castle; Glass for Window 1 x 4 x 5 with Classroom Blackboard Print (Black) — also in 4721 Hogwarts Classrooms (all Harry Potter); Window 1 x 4 x 5 with Hollow Studs (Reddish Brown) — also in 4756 Shrieking Shack (all Harry Potter); Windup Motor 2 x 6 x 2 1/3 with Raised Shaft Base - Long Axle (Dark Gray) — also in 3545 Puck Feeder; Bar 1 x 12 with 1 x 2 Plate End with Solid Studs and 1 x 1 Round Plate End (Black) ×6 — also in 8375 Ferrari F1 Pit Set, 75325 The Mandalorian's N-1 Starfighter; Wedge Plate 8 x 4 Wing Left (Dark Bluish Gray) ×2 — also in 4492 Star Destroyer, 7262 TIE Fighter and Y-wing; Wedge Plate 8 x 4 Wing Right with Stud Notch (Dark Bluish Gray) ×2 — also in 4492 Star Destroyer, 7262 TIE Fighter and Y-wing; Book 2 x 3 with Four Eyes Print (Tan) — also in 10132 Motorised Hogwarts Express, 4750 Draco's Encounter with Buckbeak, 4758 Hogwarts Express (all Harry Potter); Insect, Spider (Trans-Red) — also in 4855 Spider-Man's Train Rescue, 4851 Spider-Man and Green Goblin - The origins, 4850 Spider-Man's first chase; Leg Skeleton / Dementor Stand (Sand Green) — also in 4753 Sirius Black's Escape, 10132 Motorised Hogwarts Express, 4758 Hogwarts Express (all Harry Potter); and 6 more.
• 2 parts are otherwise only found in Harry Potter sets: Cone Half 8 x 4 x 6 (Sand Green) ×2; Hair Short Bowl Cut (Earth Orange).
• 6 moulds first came out in 2004, including in this set: Plate Special 1 x 2 [Side Handle Closed Ends] ×6; Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs ×4; Cone Half 8 x 4 x 6 ×2; Brick Round Corner 4 x 8 Full Brick Double; Leg Skeleton / Dementor Stand; and 1 more.
• 91 existing moulds first came out in their colour in 2004, including in this set: Brick Special 1 x 2 Palisade [aka Log] (Light Bluish Gray) ×67; Brick 1 x 1 (Light Bluish Gray) ×21; Brick Round 1 x 1 Open Stud (Reddish Brown) ×19; Brick Sloped 45° 2 x 2 (Dark Bluish Gray) ×17; Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric… (Dark Bluish Gray) ×12; and 86 more.
• 6 minifigure parts with their print are only in this set: Hips and Light Purple Legs with Dumbledore Robe and Belt Print (Light Purple); Minifig Head Sybill Trelawney, Large Glasses, Lipstick, Stern Print [Hollow… (Light Nougat); Shield Ovoid with Golden Lion Print (Light Bluish Gray); Torso Quidditch Sweater with Slytherin Crest Print, Green Arms, Light Nougat… (Green); Torso Robe, Gold Trim, Yellow Shirt Print, Light Purple Arms, Light Nougat Hands (Light Purple); and 1 more.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.