Over the past six years in London, Rex Duis has lived in an old school, a science lab, disused council offices and a former mental asylum. At the moment, he lives in an old police station in Bermondsey, south London. Why? Because he is a property guardian.

“All the services that are getting shut down, we end up living in those buildings,” Duis, 34 and from New Zealand, tells IBTimes UK.