Harry Potter Wiki
Harry Potter Wiki

"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] was a classroom on the ground-floor of Hogwarts Castle, accessible from the Middle Courtyard.[3][4]


McGonagall teaching in her classroom

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


The classroom in 1994

Professor Minerva McGonagall taught her Transfiguration classes in this classroom during her tenure as the Transfiguration professor.

In 1994, she used her classroom to teach her Gryffindor students dancing lessons, in preparation for the upcoming Yule Ball on 25 December.[5]

Behind the scenes

The building in the first two films


The Harry Potter Wiki has 93 images related to Classroom 1B.

Notes and references

Hogwarts Castle
Locations on the ground floor

Astronomy Tower courtyard · Bean Bonus Room · Boys' toilets · Room 234-00 · 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 · West Well · 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