Warren is a Chartered Accountant who served his articles by Arthur Young & Company until 1986. He then worked for the Astra Group as Financial Director before joining RMB Properties in 1989.
He was appointed Chief Executive Officer of RMB Properties in 2004 and was subsequently appointed Chief Executive Officer of the Eris Property Group in June 2008. Warren retired as Chief Executive Officer in late 2019.
Warren has extensive experience in property investment, property portfolio management, and associated aspects such as finance, and development and has served as a board member of various listed property companies. He also has extensive property experience in Africa and serves as a director of the Momentum Africa Real Estate Fund, and several companies associated with Eris in Mauritius, Ghana, Botswana, Namibia, and Malawi.
Warren also served as President of SAPOA in 2009/2010.