The G15 is an organisation of the largest housing associations in and around Greater London in the United Kingdom, which collectively are responsible for managing in the region of 600,000 homes in London. They state their purpose as "to solve the housing crisis by delivering good quality, affordable homes of all types". Geeta Nanda OBE, of Metropolitan Thames Valley (MTVH) is the chair of the organisation with Richard Hill of One Housing Group, being vice chair.