This Hackathon will bring together local communities, researchers, students and developers to build applications for solving social problems. This year’s event will be hosted by DS3 at the Innovation Centre of De Montfort University on Tuesday 10 and Wednesday 11th Nov. 2015. Areas of work will be gathered through our call for proposals. and will be reviewed by the organising committee of Hackathon 2015 into workable problems in any of the following areas: Housing, Mental Health, Health, Assisted living, Social care, Communities and a Wild Card Table (to cover other interesting and feasible proposals). The software developed during the event will be Open Source to allow users and developers to study, change, improve and distribute the software after the event.