Nelle was originally born in St George’s Grenada under the name Janelle (which she always hated and immediately shortened when she went to University). She moved to London when she was nine months old because her grandfather was English and her parents supposedly wanted a better life. She got a scholarship to Sir William Perkins School for girls and went to Warwick University to study English with Creative Writing where, after swearing she would never marry, she met her future husband. She did a masters in Creative Writing at Trinity College Dublin and then moved back to London in 2007 where she almost immediately began working in publishing. After working at Pan Macmillan she moved to work at a literary agency while also writing and pursuing a career as a novelist on the side.
Born in 1984, her debut novel The Legacy of Eden was published in 2012. She lives in London with her husband and works full time in publishing.