Exerpt From: History of Magick by Bathilda Bagshot by Jk Rowling
Enchanted Architecture
Hogwarts has not always been the seven story castle it is today. While proper documentation has never been found, popular theory claims that the founders originally built a structure that resembled a mansion, or a schoolhouse. However, the founders optimistically believed that Hogwarts would grow to the point where students would no longer fit within its walls. With this in mind, they enchanted the building to grow along with the number of students. While Godric Gryffindor, Salazar Slytherin, and Helga Hufflepuff did most of the collaborative spellwork, Rowena Ravenclaw designed and then inserted most of the architecture of the cast le into the original building on a theoretical basis. Small features of the original structure were later magnified into more magnificent structures as Hogwarts grew into a castle. In order to keep students constantly on their toes, Rowena enchanted the different rooms on each floor to occasionally change position. This ability was gradually adopted by other parts of the castle, manifesting itself in features such as the changing staircases.
Over the course of his time at Hogwarts, Salazar filled nearly every wall space with moving portraits and photographs. While some historians (who believe Salazarâs eventual dismissal from the castle stemmed from a gradual mental breakdown) insist it was because of a growing paranoia, most believe that he was at full mental capacity at his departure, and used the portraits to spy on his fellow founders in order to learn titbits of information he could later use against them.
The portraits are not strictly a part of shady business, however, as their allegiances change often. Many witches and wizards who spend genuine time with a portrait or two have received timely token favours.
Common Rooms
At the time of Hogwartsâ creation, only a few rooms were reserved for each founderâs students, but like many other features, each set of rooms eventually expanded and gathered into separate wings displaying trademark characteristics of each of their patrons.
Location
The location of Hogwarts is somewhat vague, though it is known to be in the Scottish Highlands, near the all-wizard village of Hogsmeade. Hogwarts provides many learning opportunities for its students. Behind the castle lies the Black Lake, approximately a half mile in diameter.
The lake houses several other species, including Grindylows, an enormous giant squid, and a colony of mer-people. The Black Lake has commonly been given a negative reputation. This belief may stem from the fact that Slytherin house has been tied to its depths in more than one way. Not only is the Slytherin common room located beneath the lake itself, but prevailing rumours insist that Salazarâs Chamber of Secrets was also created some where nearby.
To the right of the main castle is a dense forest, known by students as âThe Forbidden Forest.â With few exceptions are students allowed to enter, although the forest offers supplies and educational tools for many classes such as Care of Magical Creatures and Herbology. The forest has not been explored thoroughly by any witch or wizard, but many creatures have been found within, from centaurs to unicorns to thestrals. A small hut lies on the outskirts of the forest that serves as either a supply building or the Gamekeeperâs house, depending largely on the amount of fear each Hogwarts Gamekeeper has held for The Forbidden Forest. The current Hogwarts Gamekeeper, Rubeus Hagrid, has dedicated a large amount of time to unearthing the mysteries of the Forbidden Forest. Through his research, Hagrid has discovered many surprising facts about various Magical Beasts, including the Acromantula.
Hogwartsâ Quidditch pitch lies to the left of the castle, and is very large for the time in which it was built. By todayâs standards, the Hogwarts pitch houses minimal seating, even though portions of it have been rebuilt numerous times. Unruly bludgers and other forms of destruction constantly require rebuilding of the outer walls and stands, but Hogwarts staff remains determined that the structure should remain the same. The remainder of the grounds are largely empty, with the exception of the Whomping Willow. Recently grown and from unknown origins, the tree has become a sort of school symbol. While few (if any) would claim any affection for the tree, its quirkiness seamlessly adds to the many mysteries of Hogwarts.