Double oak front doors, opening to the west. Large, cavernous room, lit by torches, with ceiling so high it's barely visible. Wide marble staircase opposite the front doors (east wall) leads up to first floor. Double doors to the right (south wall) lead into the Great Hall. On the east wall are two doors, one on either side of the staircase. To the north of the staircase is a door leading down a flight of steps to the first dungeon level. To the south is a door leading to the Hufflepuff common room and the kitchens. On the left (north wall) is a door leading to a smaller antechamber where First Years wait to be sorted.

Located off the Entrance Hall, opposite the Great Hall. Where first years wait to be sorted.

Long panelled room, mismatched, dark wooden chairs, large wardrobe, sometimes inhabited by a boggart, and located off the Entrance Hall.

Opposite the doors into the Great Hall, this corridor has at least one classroom down it, Classroom 11. A side door in this corridor opens out into the courtyard where the students congregate during break times.

In the corridor leading off the Entrance Hall on the side opposite the Great Hall, one of several unused classrooms, and Dumbledore arranged for this room to look like the middle of a forest clearing; Firenze, who couldn't easily negotiate the stairs, taught Divination in this room. He could lower the lights and display a starry sky with a wave of his hand.