| 2024 | Looking Glass Sound | British Fantasy Award (Novel) source ↗ (opens in a new tab) | Shortlist · Horror Novel | |
| 2024 | Looking Glass Sound | World Fantasy Award (Novel, Collection and Anthology) source ↗ (opens in a new tab) | Nominee · Novel | |
| 2023 | Sundial | Thriller Awards source ↗ (opens in a new tab) | Winner · Best Hardcover Novel | |
| 2023 | Sundial | Locus Awards source ↗ (opens in a new tab) | Finalist · Horror Novel | |
| 2023 | Sundial | British Fantasy Award (Novel) source ↗ (opens in a new tab) | Shortlist · Horror Novel | |
| 2023 | Looking Glass Sound | The Observer Best Books of the Year source ↗ (opens in a new tab) | Selection · Thrillers | |
| 2022 | The Last House on Needless Street | British Fantasy Award (Novel) source ↗ (opens in a new tab) | Winner · Horror Novel | |
| 2022 | The Last House on Needless Street | British Book Awards source ↗ (opens in a new tab) | Shortlist · Pageturner Book of the Year | |
| 2022 | Sundial | Goodreads Choice Awards source ↗ (opens in a new tab) | Nominee · Horror | |
| 2022 | Sundial | Bram Stoker Awards source ↗ (opens in a new tab) | Nominee · Novel | |
| 2022 | The Last House on Needless Street | World Fantasy Award (Novel, Collection and Anthology) source ↗ (opens in a new tab) | Nominee · Novel | |
| 2021 | The Last House on Needless Street | Goodreads Choice Awards source ↗ (opens in a new tab) | Nominee · Horror | |
| 2021 | The Last House on Needless Street | Chicago Public Library Best of the Best source ↗ (opens in a new tab) | Selection · Best Books | |
| 2021 | The Last House on Needless Street | Library Journal Best Books source ↗ (opens in a new tab) | Selection · Horror | |
| 2019 | Little Eve | British Fantasy Award (Novel) source ↗ (opens in a new tab) | Winner · Horror Novel | |
| 2018 | Little Eve | Shirley Jackson Awards source ↗ (opens in a new tab) | Winner · Novel | |
| 2018 | Little Eve | The Guardian Best Books of the Year source ↗ (opens in a new tab) | Selection · Science fiction and fantasy | |
| 2016 | Rawblood | British Fantasy Award (Novel) source ↗ (opens in a new tab) | Winner · Horror Novel | |