London Bridge, London, SE1 9DASt Saviour's Church became Southwark Cathedral in 1905. The diocese which it serves stretches from Kingston-upon-Thames in the west to Thamesmead in the east and Gatwick Airport in the south. It has a population of two-and-a-half million people, served by over 300 parishes. In 2000, major extensions designed by Richard Griffiths were added north of the Cathedral; these provide meeting and conference rooms, a library, the Education Centre, the Shop and Refectory. Now as a Cathedral, Southwark is once again (as in monastic days) a centre for a pattern of daily worship within the English cathedral music tradition.