The Applied Magic classroom is Penwick's largest and most adaptable space. Its tall, cross-gabled roof and sturdy stone walls create a chapel-like hall. The room is divided into five distinct areas. Students enter through the narrowest corner, where they hang their coats and leave their belongings during hands-on lessons. Two practice areas extend to the left and right, while the center serves as the main instructional space. Opposite the entrance stands the Professor's desk alongside chairs and desks, which are arranged into a more traditional classroom seating when theoretical instruction is needed. Behind the Professor's desk, a narrow staircase leads up into a storage attic.