The Maresfield Conservation Group (MCG) was formed in 1991 by a small group of volunteers from the village. The formation of the Group was prompted by plans for a large waste disposal site at Budletts roundabout at the foot of School Hill along with other planning issues within the Parish. Major Graham Allt was elected Chairman at the first Annual General Meeting on 10 July 1991.

​

The Group became a registered charity on 4 June 2004. It started off with about 50 members, with considerably more today.