"Transfiguration Classroom. Treat inanimate objects respectfully. They may be your classmates."
—Notice outside the classroom[src]

Classroom 1B,[1] also known as the Transfiguration Classroom,[2] is a classroom on the ground-floor of Hogwarts Castle, accessible from the Middle Courtyard.[3][4]


The classroom is big, surrounded by high windows, has four rows of three desks, and still has enough room for several cages and bookshelves, two chalkboards, and a desk for the professor. Several candlesticks stand lit behind the desk.[3][4]

Assembly Hall

The classroom in 1994

Behind the scenes


The building in the first two films


Notes and references

Hogwarts Castle
Locations on the ground floor

Astronomy Tower courtyard · Balcony around the Great Hall · Bean Bonus Room · Boys' toilets · Caretaker's office · Central tower courtyard · Chamber off the Great Hall · Chamber of Reception · Classroom Eleven · Classroom 1B · Corridor off the Entrance Hall · Entrance Hall · Great Hall · Great Hall balcony · Ground Floor Corridor · Herbology Store · House Point Ceremony Chamber · Link Building · Marble Staircase · Middle Courtyard · Northern Courtyard · Northern Courtyard Annex · North Tower courtyard · Out Of Bounds · Oxford Corridor · Paved grounds · Portrait Room · Side chamber · Staffroom · Staffroom corridor · Storage Cupboard · Storeroom · Storeroom courtyard · Suspension Bridge · Temporary Defence Against the Dark Arts Classroom · Transfiguration department · Viaduct Courtyard · Viaduct Entrance · Viaduct · Viaduct Courtyard Gatehouses · West Tower courtyard · Suspension Bridge foyer · The Quad

Portraits, statues and other artwork located on the ground floor

Brian Gagwilde · Circe · Gargoyles at the staff room entrance · George von Rheticus · Giffard Abbott · Glanmore Peakes · Godric Gryffindor · Google Stump · Greta Catchlove · Henry Bumblepuft · Lonely Male Gargoyle · Lonely Male Gargoyle's friend · Medieval couple · Merwyn the Malicious · Mirabella Plunkett · Miserable Female Gargoyle · Norvel Twonk · Old Posh Baron · People watching Quidditch · Staring Portrait · Professor Swoopstikes · Temeritus Shanks · Timothy the Timid · Violet · Architect of Hogwarts · First Headmaster of Hogwarts · Jocunda Sykes · Sarcastic Male Gargoyle · Portrait of a girl with flowers · Wizard with a walrus moustache