In recent years a number of UK unions have been considering how to (re)engage with communities in order to rebuild the links that were so important to the origins and development of trade unionism. As such, we have seen parts of the UK union movement investing time and resources into exploring whether community organising can engage new actors and new union members in fighting for workers’ rights and against social injustice more broadly. This article explores the factors behind this ‘new’ turn to community-based organising and outlines the current state of developments in this area; it is based on over 10 years of research into community organising in the UK, working closely with the TUC, affiliate unions and community-based organisations. Findings suggest that the current economic climate and declining power at the point of production, as well as successes by new actors in the employment-relations arena, are driving this current interest and activity in community organising.