The Civic Society no longer exists and has instead been replaced by a new body called the Civic Voice. There is a large amount of information available on it's website which can be found by going to www.civicvoice.org.uk  

Another organisation who are very active and issue a considerable amount of information are The London Forum of Amenity and Civic Societies and they can be found at www.londonforum.org.uk their information can be downloaded and I believe they will add you to their emailing list upon request.

Other useful links:-

Carshalton & District History & Archaeological Society
www.cadhas.org.uk

Carshalton Water Tower and Historic Garden Trust
www.carshaltonwatertower.co.uk
 

Sutton Arts Council
suttonartscouncil.org/

The Friends of Nonsuch
http://www.friendsofnonsuch.co.uk/

Belmont and South Cheam Residents Association
www.bscra.com