Complex sentence: It has a very active Residents Association, started by Barry Kirby and Clive Barton in June 2008, that holds public meetings, community fun days and other local events, and lobbies local agencies and organisations involved in the development, on behalf of residents.
Split into simpler sentences: It has a very active Residents Association, started by Barry Kirby and Clive Barton in June 2008, that holds public meetings, community fun days and other local events. It also lobbies local agencies and organisations involved in the development of the area, on behalf of residents.