Hogwarts Castle Hogwarts School of Witchcraft and Wizardry or simply Hogwarts is a fictional boarding school of magic for budding witches and wizards that appears in J . K . Rowling ' s Harry Potter novels and derived works such as the movie series . The school was also the subject of a vast number of LEGO sets from the " Harry Potter " theme , making up the bulk of this product line . Over the course of ten years since the theme ' s introduction , more than 20 different sets portrayed locations in and around the school , ranging from smaller sets which represent single rooms , over reproductions of whole building sections , to large models of the castle itself . This article presents an overview of the many different LEGO incarnations of the castle , its interior rooms and related buildings . Over the years there have been five versions of the set , all of which include . History . The first rendition of Hogwarts Castle appeared in 2001 , the year when " Harry Potter " was introduced . This castle contained several generic places from the first book and film " Harry Potter and Philosopher ' s Stone " , such as the Astronomy Classroom , the Owlery , the Fat Lady ' s Corridor , the Library , the Great Hall and an arch for the boats to pass through , while more specific locations were released in separate sets , such as the forbidden third - floor corridor with Fluffy and the trapdoor , the Chamber of Winged Keys and the Giant Chessboard ( though miniaturised ) , the room with the Mirror of Erised where Harry faces Professor Quirrel , the Potions Classroom , a generic classroom alongside the abandoned classroom where Harry finds the Mirror for the first time in the set 4721 Hogwarts Classrooms , and the Girl ' s Bathroom where Harry is attacked by the troll . Important recurring places that were turned into LEGO sets during the first year were the Gryffindor Common Room and Hagrid ' s Hut . The following year brought several locations related to the second book " Harry Potter and the Chamber of Secrets " and explored other parts of Hogwarts , such as Dumbledore ' s Office or the eponymous Chamber of Secrets itself . Also depicted is the Slytherin Common Room , the place where Dobby receives his sock of freedom ( likely Professor McGonagall ' s Office ) , Moaning Myrtle ' s Bathroom , and the Great Hall as it is seen during the Duelling Club scene . Also , a section of the Forbidden Forest was featured in the set 4727 Aragog in the Dark Forest , and the Quidditch Pitch was depicted in the set 4726 Quidditch Practice . With the release of the " Harry Potter and the Prisoner of Azkaban " subtheme in 2004 , a new version of Hogwarts Castle was released , which contained the Clock Tower , Gryffindor Tower , the Divination Classroom , the front gates , a generic classroom , and a corridor with a trapdoor . Featured in other sets were the Defence Against the Dark Arts Classroom , the third floor corridor with a secret passage to Hogsmeade Village and the Dark Tower where Sirius Black escapes the Dementors on Buckbeak . A new version of Hagrid ' s Hut was released as well . The only new additions to Hogwarts in 2005 were some sets that showcased several sites of the Triwizard Tournament ; part of the Mervillage in the lake , and the Dragon Arena . There were no sets depicting any part of the actual castle itself , only of the grounds . The third Hogwarts Castle set , from 2007 , has three buildings : the Room of Requirement , the Greenhouse , and the main Castle section . There a some new rooms in this set including ; Professor Umbridge ' s and Professor Snape ' s Offices , Gryffindor Tower with a fireplace and dormitory bed , A Trophy Room , an Astronomy Tower , and the Entrance Hall . This set features the greenhouse with mandrakes despite this location playing a more significant role in Chamber of Secrets , not Order of the Phoenix . 4842 Hogwarts Castle from 2010 is currently the largest model of Hogwarts ( by number of pieces ) . It contains many new , redesigned , and exclusive minifigure s , as well as some brand new rooms that never appeared before in LEGO form , such as the Restricted Section of the Library , the Room of Hidden Things , and an Astronomy Tower balcony . It features a more intricate design in the construction of the outer walls , which consists largely of smaller bricks than of large , single - piece panels . The set recreates the Great Hall from the first castle , and Dumbledore ' s Office from the 2002 set 4729 Dumbledore ' s Office . Also seen is a new trophy room , the Gryffindor and Slytherin Common Rooms , and a corridor with a knight statue . Hagrid ' s Hut was updated in the set 4738 Hagrid ' s Hut , as was the Quidditch Pitch in the set 4737 Quidditch Match . The set 4736 Freeing Dobby , is based around an arch from a Hogwarts corridor . In 2011 , LEGO released 4867 Hogwarts ( formerly 4867 Battle for Hogwarts ) which included a viaduct bridge , ( which can explode by turning a dial on the end of the viaduct ) an updated astronomy tower , ( with a new LEGO globe ) a divination classroom , dungeons , two of the Room of Requirment ' s forms , Professor Lupin ' s office , and the Mirror of Erised . It was built in the same style as 4842 Hogwarts Castle and the two may be connected . More of the Forbidden Forest is featured in the set 4865 The Forbidden Forest . In " " the castle appeared as one of the game ' s two hubs , the other being Diagon Alley . In " " the castle has an updated look inside and outside . Style . Most sets , particularly the four released large " Hogwarts Castle " sets , use pieces in grey and tan for the walls and sand - green roofs . Most of the single - room sets were similar in style to the bigger castles and had a floor and sometimes a ceiling or even outer wall and tower structures , so that they could be easily combined to form a bigger Hogwarts . Since the large sets already had a modular structure , this allowed the various rooms to be rearranged to the owner ' s liking . But there were also some smaller sets that only included interior furnishing and just a wall segment or even no walls whatsoever , such as 4722 Gryffindor House or 4721 Hogwarts Classrooms , which included cardboard walls . To allow easier access to the interior , for better playability , the buildings and rooms are not fully enclosed and in most cases have their walls at only one side , which means that the backside is usually completely open . Some rooms don ' t even have solid walls but rather big archways with large openings instead . Notable rooms . Great Hall . Although the Great Hall plays a significant role in the Harry Potter films , it appears in only two sets , the first model of Hogwarts Castle from 2001 and its latest incarnation from 2010 . Both LEGO renditions of the hall are considerably smaller than the location it is modeled after . The first version contains only one table , a fireplace and Dumbledore ' s seat at front of the hall . The room is also very narrow , since its just a half room that has the outer wall with the facade on one side and is otherwise open to allow easier access to the interior . The hat for the sorting ceremony that takes place in this hall was released in a separate set . The newest version of the great hall contains two tables and four accompanying benches , as well as two seats for the staff and the sorting hat . Other than in the previous representation , the floor area extends more into the interior of the whole castle set itself and looks less cramped . Entrance Hall . In the Main Castle in 5378 Hogwarts Castle on the first floor is the Entrance Hall with a knight as it is seen in Harry Potter and the Order of the Phoenix Philosopher ' s Stone Chambers . In " Harry Potter and the Philosopher ' s Stone " several obstacles , that are found in a series of rooms , most be overcome to reach the eponymous stone . In the book there were seven obstacles , but six of them can be found in LEGO sets . The first two challenges are portrayed in 4706 Forbidden Corridor , which contains the initial entrance , a trapdoor guarded by Fluffy , the three - headed dog . Underneath the trapdoor is the chamber filled with Devil ' s Snare . The third obstacle , the room with the winged keys , appeared in another set , 4704 The Chamber of Winged Keys . This set also contained the next room with the fourth challenge , the giant chess set , although this LEGO rendition did not contain a complete chess set but only a 3x3 array of chess fields with a minifigure - sized ( giant ) chess king . The next obstacle , which appeared earlier on in the story was the giant mountain troll , found in 4712 Troll on the Loose . The sixth obstacle , Snape ' s Riddle , can not be found in a set . The last obstacle could be found in 4702 The Final Challenge , which contained the Mirror of Erised and the Philosopher ' s Stone . Other sets , including 4757 Hogwarts Castle , and 4721 Hogwarts Classrooms showcase various generic classrooms . Gryffindor Tower . The " Gryffindor Tower " which houses Gryffindor ' s common room and dormitory is one of the few locations that appeared in more than one set . The first rendition was a part of 4709 Hogwarts Castle from 2001 . As all later incarnation of the room , it already had the portrait of the Fat Lady affixed to a revolving wall piece which served as main entrance . It was also built into one of the actual towers of the castle set . Another version was 4722 Gryffindor House from the same year . That set contained only the interior furnishing , including a bed , but had no walls except the section with the Fat Lady ' s portrait . One more version was included in 4757 Hogwarts Castle from 2004 , again in an actual tower , which also included a dormitory with beds . Gryffindor ' s common room made its latest appearance as part of 4842 Hogwarts Castle from 2010 , where it took up a level in a tower which also contained the Slytherin dungeon in the basement . The common room contained two chairs and a table . The Gryffindor Dormitory , represented by a bunk bed with Gryffindor - style colors , was included in 4867 Hogwarts . Slytherin Common Room . The Slytherin Dungeon appears in 4735 Slytherin . It does not contain any seats , but contains a table with potions . It is primarily green in colour , with decorative snakes , a Slytherin shield , a printed wall piece for the entrance . The dungeon appeared again in 4842 Hogwarts Castle , where it was located in the basement of a tower that also housed the Common Room of Gryffindor on an upper floor . This new version of the contained two chairs and a table , as well as some snakes , a Quibbler , and a Slytherin Crest tile on the wall . Bathrooms . The girls ' lavatory in which Harry fights the troll was turned into its own set , 4712 Troll on the Loose . The bathroom that contains the entrance to the Chamber of Secrets was contained in 4730 The Chamber of Secrets . The Chamber of Secrets . The Chamber of Secrets appears in its own set but also contains the entrance at the girls ' bathroom . The model of the actual chamber recreates the look from the movie and on one end of the chamber sits the statue of Salazar Slytherin ' s head , where the Basilisk hides . The side walls are adorned with snake heads which are just flat pictures printed onto wall panels and not actual statues . Greenhouse . Although Hogwarts ' Greenhouse first appeared in " Harry Potter and the Chamber of Secrets " it did not appear in any LEGO sets until the release of 5378 Hogwarts Castle in 2007 . The Greenhouse contains mandrake s and a blackboard . The Room of Requirement . The Room of Requirement first appears in 5378 Hogwarts Castle in 2007 , it has a wand holder , and a practice target for the D . A . ( Dumbledore ’ s Army ) meetings , in the roof is a owlrey and rat , it also has Hogwarts banners . The room holds together to make one building . In 4867 Hogwarts it is remade and has two portraits of wizards and also includes Lucius Malfoy with his Death Eater form to resemble the practice dummy seen in the film . The Room of Hidden Things . The Room of Hidden Things is a particular form the Room of Requirements takes on . In 4842 Hogwarts Castle is the Room of Hidden things witch include a Vanishing Cabinet that Dark Wizards might use to sneak into Hogwarts . Astronomy Tower . In 4709 Hogwarts Castle it first appears in at the top of the tower also housing various room . It featured a removable roof , a blue book and shelf , and a telescope that rotates 360 degrees . It next appears in 5378 Hogwarts Castle above the Trophy Room and it has a window to look out of . It features a star chart and a movable telescope . 4842 Hogwarts Castle has an open tower to view the skies and a telescope that can move 360 and up and down . Its latest appearence is in 4867 Hogwarts where it appears rounded and like the film adaption . It has a grey globe printed wih what looks like a star chart . Trophy Room . In 5378 Hogwarts Castle on the second floor is the Trophy Room with trophies , ribbons , gems , and golden objects . 4842 Hogwarts Castle also has a Trophy Room , with a Trophy Case that says " James Potter - Seeker " .