Her first play was shortlisted for the South West New Writing Initiative and she took part in the Royal Court Young Writer’s Programme, where her work was performed in the Jerwood Theatre Upstairs at the Royal Court, directed by Lyndsey Turner.
Since then her theatre work has been produced at various London theatres and international festivals.
For television, Isla has written for The Cut (BBC) and as a core writer on Hollyoaks (Channel 4). Isla has recently been working with the BBC, ITV and Penguin Random House.
She is currently a longlisted playwright for the OldVic12.