Gryffindor Head of House's office is decorated with a lot of tartan plaid. She keeps a tin of biscuits on her desk and usually, the Quidditch Cup on her shelf. The office has a fireplace with a mantelpiece, and the entrance is evidently within easy walking distance of Myrtle's bathroom. The fireplace can be connected to the Floo Network when necessary. At least one of the windows overlooks the Quidditch pitch.
