| 2024 | Pernickety Boo | The Guardian Best Books of the Year source ↗ (opens in a new tab) | Selection · Children's | |
| 2015 | Tinder | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Shortlist · Carnegie Medal for Writing | |
| 2015 | Tinder | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Shortlist · Kate Greenaway Medal for Illustration | |
| 2014 | Maggot Moon | Michael L. Printz Award source ↗ (opens in a new tab) | Honor · Young Adult Literature | |
| 2014 | Operation Bunny | New York Public Library Best Books source ↗ (opens in a new tab) | Selection · Best Books for Kids | |
| 2014 | Operation Bunny | Publishers Weekly Best Books source ↗ (opens in a new tab) | Selection · Middle Grade | |
| 2013 | Maggot Moon | CILIP Carnegie Medals (Writing and Kate Greenaway Illustration) source ↗ (opens in a new tab) | Winner · Carnegie Medal for Writing | |
| 2013 | Maggot Moon | Booklist Editors' Choice source ↗ (opens in a new tab) | Selection · Books for Youth: Fiction, Older Readers | |
| 2013 | Maggot Moon | Publishers Weekly Best Books source ↗ (opens in a new tab) | Selection · Children's Fiction | |
| 2013 | Maggot Moon | BookPage Best Books of the Year source ↗ (opens in a new tab) | Selection · Young Adult | |
| 2012 | Maggot Moon | Costa Book Awards source ↗ (opens in a new tab) | Winner · Children's | |
| 2006 | I, Coriander | British Book Awards source ↗ (opens in a new tab) | Shortlist · Children's Book of the Year | |