In 1987 Cass became chairman and chief executive of Moss Bros Plc, where he reorganised the whole of the troubled group including moving and selling its head office, starting up a new range of Suit Shops and buying Cecil Gee Plc.
Over the next year they visited some thirty sculpture parks around the world before deciding upon the style, aim and design of their own estate.
Long-term friends of Henry Moore and Elisabeth Frink, Cass and his wife Jeannette sold their personal collection of Moores, Frinks and Ayrtons, which they had bought directly from these artists, to fund the creation of their park.
Based in Goodwood, West Sussex, the charitable foundation's aim was to promote and advance British sculpture to a global audience through a vigorous programme of commissioning, funding and marketing, the Foundation has enabled the fabrication of 150 major new works by leading British artists.
Cass was created a Commander of the Order of the British Empire (CBE) on 17 June 2006.