Room A19 (TV: Co-Owner of a Lonely Heart) was the head teacher's office at Coal Hill Academy, and so belonged to the incumbent head teacher. It was located in the Barbara Wright Building. (TV: The Coach with the Dragon Tattoo)
Armitage's office
Frank Armitage's office had red walls, upon which hung portraits of various gentlemen. Two bookcases, full of old books stood behind either side of his desk, one of which had trophies on the top shelf. A clock was on the wall opposite the desk. The office also contained a filing cabinet, a chess set and a hand-held school bell. (TV: The Coach with the Dragon Tattoo)
Miss Quill met with Mr Armitage in his office after verbally abusing Paul Smith. He told her not to get into any "special measures" as "the Governors wouldn't like it". (TV: The Coach with the Dragon Tattoo)
April MacLean, Charlie Smith and Tanya Adeola went to see Mr Armitage in his office to ask about the disappearance of a cleaner. During their visit, Mr Armitage was skinned alive and subsequently killed by a skin-peeling dragon while trying to protect them. (TV: The Coach with the Dragon Tattoo)
Ames' office
Dorothea Ames' office had green walls and was more spacious than that of Mr Armitage. In the centre of the wall behind her desk was a modern-style bookcase, with frames of preserved butterflies hanging at either side. Ames kept files in her office, for the attention of the Governors and pertaining to certain individuals including Charlie Smith, Andrea Quill and The Doctor. The office contained a bowl full of multiplying killer petals, which Ames monitored and learnt from. (TV: Co-Owner of a Lonely Heart)
When Miss Quill visited her office, Dorothea questioned the aliases "Charlie Smith" and "Andrea Quill". She suggested that she worked with the Governors and asked Quill to help them with the invasion of killer petals. In return, she offered to remove the arn and give Miss Quill her free will back. (TV: Co-Owner of a Lonely Heart)