- "The grimy fronts of the surrounding houses were not welcoming; some of them had broken windows, glimmering dully in the light from the streetlamps, paint was peeling from many of the doors, and heaps of rubbish lay outside several sets of front steps [...] "
Grimmauld Place is a street in the London Borough of Islington mostly inhabited by Muggles. The Black family residence was located at number twelve, and served as the headquarters of the Order of the Phoenix between 1996-1997.  Since the Black House is hidden from most people, the residents of this street have accepted the "amusing mistake in the numbering that had caused number eleven to sit beside number thirteen".
- Grimmauld Place may be one of Rowling's play on words combining the words "grim", "old" and "place".
- Harry Potter and the Order of the Phoenix (First appearance)
- Harry Potter and the Order of the Phoenix (film)
- Harry Potter and the Order of the Phoenix (video game)
- Harry Potter and the Half-Blood Prince (Mentioned only)
- Harry Potter and the Half-Blood Prince (film) (Sneak peek in Disc 2)
- Harry Potter and the Deathly Hallows
- Harry Potter and the Deathly Hallows: Part 1
- Harry Potter and the Deathly Hallows: Part 1 (video game)
- LEGO Harry Potter: Years 5-7