Unitarians in London and the South East largely meet in congregations. There are 29 across the region of which 9 can be found in London itself. The London District and South Eastern Provincial Assembly of Unitarian and Free Christian Churches (LDPA) is the regional network association for those congregations.

The LDPA supports congregations and individual Unitarians in London and the South East through various programs and activities. Everyone is invited to a regional meeting held four times a year. Each gathering includes a religious service, a speaker and/or discussion on a topic of interest, and an opportunity to enjoy refreshments and fellowship.