4842 Hogwarts Castle 4842 Hogwarts Castle is a Harry Potter set based on the castle of the same name , from the Harry Potter franchise . It was released on October 1 , 2010 . It is the fourth version of Hogwarts Castle that the LEGO Group has released , with the three previous Hogwarts Castle incarnations being 4709 , 4757 , and 5378 . The set also does not focus on the latest movie in the series , but includes elements from earlier movies that would be connected to multiple LEGO Harry Potter subthemes . The set features four buildings : the Great Hall and 3 other towers . Each include different rooms and various magical surprises classic to the LEGO Harry Potter theme . It also includes a gray , brown , and white owl , a cat to represent Mrs . Norris , 2 snakes , a spider , a bat , a frog , a rat , the Sorting Hat , the Marauder ' s Map , the Sword of Gryffindor , and the 2010 - redesign Invisibility Cloak . A noticeable feature of the new castle is that in between each tower is a modular section that give maximum flexibility by allowing the tower to be connected in any combination . In 2011 4867 , another model depicting part of the castle was released . Also including this TECHNIC configuration , it was designed to be structurally combined with this set . Containing one of the highest minifigure counts of the theme and certainly within the chronology of Hogwarts Castle sets , 4842 Hogwarts Castle contains 9 minifigures : , Hermione Granger , Professor Dumbledore , Argus Filch , Professor Snape , Professor Flitwick , Professor McGonagall , Lord Voldemort , and two Dementor s . Background . While , as mentioned above , this Hogwarts sets has elements from every film , the designer returned to the first movie to capture the classic profile of the castle . He was inspired by the first view of it as Harry crosses the lake on a boat , and this is evidence by the Great Hall section of the set looking very similar to its first appearance in the movies . It made its first appearance at Toy Fair 2010 as part of the 2010 re - release of LEGO Harry Potter along with other new sets , and certainly had the most detail and features of any of the Harry Potter sets released that year . Description . The Castle . The castle is made up of four main buildings : the Astronomy Tower , the Common Rooms , the Great Hall , and Dumbledore ' s Office . Each building has a modular section connecting it to another building , giving the set maximum flexibility and allowing the towers to be connected in any combination . Astronomy Tower . The Astronomy Tower houses the Room of Requirement on the bottom floor with a Vanishing Cabinet , which can open and close to allow the placement of a minifigure inside of it . The partner Vanishing Cabinet can be found in 10217 Diagon Alley . The middle floor contains the Restricted Section of the library , which houses three brown books which can be reached by removing the chains ( actually flexible hand - cuff pieces ) so that the clear panels of the cabinet can slide open . The top of the tower is the observation roof for Astronomy with a rat and a telescope that swivels in any direction . Common Rooms . The next building , known as the Common Rooms contains four floors and represents ( for the most part ) the Gryffindor Tower as seen in the films . The bottom floor is the Slytherin Common Room , decorated with green snakes and black chairs . The floor above contains a rotating piece of furniture with a Suit of Armor on one side and Tom Riddle ' s diary behind it . The third floor is the Gryffindor Common Room , with two swiveling red chairs and a fireplace through which Sirius Black ' s head speaks to Harry . The top floor is the Owlery , which contains three owls ( a grey , a brown , and a white ) and some bird droppings scattered among them . The top of this tower contains the three small turrets coming off of it . Great Hall . The Great Hall is the central building of the set . There are many changes from its previous design in 4709 Hogwarts Castle , one being that the ceiling is now made of pieces , whereas the original set had a cardboard ceiling . Either side of the building has transparent bricks for a stained - glass effect . There is a rotating candelabra fixture , and Gryffindor and Slytherin banners hanging from the ceiling . The interior of the hall contains two long tables ( each with bench seating on either side ) , with a large roast turkey and a golden plate with cherries and a croissant on one and a large cake on the other . Both tables have golden goblets , and the front of the hall has two staff chairs and the announcement podium with two torches and two sloped tiles for the Sorting Hat to sit on . There are two crossed axes behind the professors ' chairs . Dumbledore ' s Office . The last structure to be built is broader and similar in design to 5378 Hogwarts Castle . The Hogwarts trophy room is at the base of the tower , and has portraits of Hogwarts Headmasters on the walls . The trophy room contains James Potter ' s Seeker trophy and a chest containing a parchment and the Philosopher ' s Stone . A spiral staircase leads up to Professor Dumbledore ' s two - story office , which has many pieces to explore , including two false - fronted cabinets that contain a letter and Basilisk fang . Other features of the office are potions , a magnifying glass examining the Daily Prophet , a frog , and a crystal ball . The Sword of Gryffindor hangs across the ceiling and within the roof piece is a stand where the redesigned Sorting Hat rests . Minifigures . The minifigures included in this set are , Hermione Granger , Professor Dumbledore , Argus Filch , Professor Snape , Professor Flitwick , Professor McGonagall , Lord Voldemort , and two Dementor s . This set sees some noticeable redesigns of the minifigures , such as a new versions of Professor Snape , Minerva McGonagall , Professor Dumbledore , the Dementor s , Lord Voldemort , , and Hermione Granger but also brand - new minifigures such as Filch and Professor Flitwick . So far , the versions of Professor Snape , Professor McGonagall , and Professor Dumbledore found in this set are all exclusive , while Professor Flitwick , Filch , and the printed version of Filch ' s cat Mrs . Norris , are all exclusive .