From 1 August 2017 Carshalton College, Kingston College and South Thames College (which also included the Merton College campus) merged under type B merger arrangements (governed by the Further Education Corporations (Publication of Proposals) (England)Regulations 2012, SI 2012 No. 1157) to create a new college group for South West London.

The following documents detail the OFFA Access Agreements and Access and Participation Plan for Merton College 16-18 and South Thames Colleges Group 19-20.