Natasha was born in Cambridge. She read English Literature at Oxford before doing an MA in Creative Writing at the University of East Anglia.

In 2013 she went to Japan on a scholarship from the Daiwa Anglo Japanese Foundation. She lived in Tokyo for a year and a half, learning Japanese and researching her first book, The Watchmaker of Filigree Street. In 2016, she spent several months in Peru courtesy of a travel grant from the Society of Authors, chasing llamas and researching The Bedlam Stacks. She lives in Bath.