University Housing provides flats for PhD students and post-docs. There is a waiting list for both small and large apartments available for PhD students or postdocs on the Boerhaavelaan and other locations. They are very reasonable in price, size and quality. Get in touch with Mrs. Camiletti (lj.camiletti@ics.leidenuniv.nl) to fill out the application form. Waiting times can be up to several years.