Welcome to Hogwarts school of Witchcraft and Wizardry! The whole castle up to fall 2019, including set numbers:
75954  (Great Hall)
75953 (Hogwarts Whomping Willow)
75948 (Hogwarts Clock Tower)
and a majorly customized version of set 4867 (Battle for Hogwarts) This model was originally inspired by 2011's Battle for Hogwarts set, to which I added a basement layer to bring it up to 2018 set height. I also redid the roof peaks from sand green to dark bluish gray, and added more inside details. On the left is the Slytherin common room, and above that is the astronomy tower. The dungeon is empty, as it is no longer used, much to Argus Flich's dismay. On the right side on the bottom level is the micro-scale Chamber of Secrets with it's large face in the rear and stone snakes statues. Up a level is the entrance to the chamber, the sink  in the girl's lavatory that Moaning Myrtle haunts. Up one more level is a generic classroom. Bridging the two towers (literally) is the stone viaduct is one of the three or so entrance's into the school.... unless you count the seven secret passages! The Great hall, with the dock used by first years to get into the castle proper from across the lake and the train station. Four tables, four houses to be sorted into. Hufflepuff in the top left, Slytherin on the top right, Ravenclaw bottom left, and Gryffindor bottom right. The teacher's sit at the head of the room. Looks like one of the Slytherin kids ordered lobster! Through this courtyard archway Harry Potter and Ron Weasley saw the flying ford Anglia disappear into the Forbidden Forest after it had hit the Whomping Willow. It was not the last time they would see the car however.... The potions classroom (bottom level) and Gryffindor common room (middle level) with the owlery on top.   The clock tower set has had it's Yule ball parts removed. I didn't like them, and they dated the set to later point in time than I wanted. Upstairs is the hospital wing, while the middle floor features the Defense Against the Dark Arts classroom and the Headmaster's office, while the ground floor features the prefect's bathroom and another exit onto the school grounds. Heavily inspired by Eurobricks user @f2iso100 model of Hogwarts' bell towers (as seen halfway down on page six of this topic here.), I have devised my own model, with some revisions to make it's features more visible amongst all the tan. I made the stone shutters for the actual bell area wooden, and reduced the height of the towers by a good three bricks, as it currently looms over the official sets by a good floor-and-a-half. (10 bricks) The bottom floor features the house points tally counter across from the Tri-Wizard Cup. Looks like Gryffindor and Slytherin are tied for the house cup! The second floor features the Room of Requirement in it's room of hidden things configuration, with the chalkboard from the Dumbledore's Army room, the possibly still broken Vanishing Cabinet, and a few sealed crates. Above that, on the third floor is the Divination classroom. This includes a crystal ball and pink teapot with 2 teacups. Continuing climbing up to floor four, we have the two belfries with the dual "iron" bells that swing side to side. No, they don't actually make any noise. From left to right in the upper row: Headmaster Albus Dumbledore, Prof.  McGonagall, Prof. Lockhart, Prof. Snape, Prof Flitwick, Rubeus Hagrid, Argus Filch, and a custom random Professor. The students are mostly all as they are in the sets, with the addition of one custom Dean Thomas.   More could be added in the future, depending on what Lego releases for the required castle expansion. Until then, this is it, and I hope you enjoyed it. Comments, Questions and Complaints are always welcome!