Mark Preston Home People profiles Mark Preston Group Chief Executive Mark Preston, FRICS, is the Executive Trustee of the Grosvenor Estate with overall responsibility for the Grosvenor family's business interests. He holds the position of Chief Executive of Grosvenor Group to which he was appointed in 2008. Earlier in his career, and after joining Grosvenor in the UK in 1989, he was seconded to Hong Kong in 1995, returned to the UK to lead Grosvenor's Fund Management operations in 1997, spent four years in San Francisco from 2002, became Chief Executive of Grosvenor Britain & Ireland in 2006 and was appointed to the Group Board in 2006. Mark is a Non-Executive Director for international property company Sonae Sierra SGPS. He is a Trustee of the Urban Land Institute (ULI) and a Trustee for the Westminster Foundation. He is a member of the (University of) Cambridge Land Economy Advisory Board and an Honorary Vice-President of the Cambridge University Land Society. " For Grosvenor, the future will be about maintaining a balance between widening its international reach while continuing to invest in London. "