Ayre Chamberlain Gaunt has revealed its proposals for a £20m scheme to repurpose Ted Cullinan’s grade II* former RMC headquarters in Surrey and neighbouring buildings as a retirement living complex.

The plans, drawn up for developer Eden Retirement Living, will restore Cullinan’s 1990 office building, known as Cemex House, and the other 18^th- and 19^th-century buildings on the site. The refurbished buildings – and one new residential structure – will deliver 81 apartments.

Ayre Chamberlin Gaunt’s proposals, which have the backing of both Cullinan Studio and the Twentieth Century Society, will maintain the recreational facilities from the original scheme – including the swimming pool, spa, squash courts, restaurants and dining areas.