Mark Preston has been appointed as the new chief executive of UK property group Grosvenor with effect from July 1, succeeding Jeremy Newsum who is stepping down after almost 20 years.

Mark Preston has been appointed as the new chief executive of UK property group Grosvenor with effect from July 1, succeeding Jeremy Newsum who is stepping down after almost 20 years.

Preston was previously chief executive of Grosvenor's Britain & Ireland activities and was also responsible for the group's fund management business. He also spent time with Grosvenor Americas. Preston will be replaced as CEO of Grosvenor Britain & Ireland by Peter Vernon.

Newsum will retain his role as executive trustee of the Grosvenor Estate and remain on the the board of Grosvenor Group as a non-executive director.

Grosvenor has also appointed Domenico Siniscalco as a non-executive director. He is currently vice-chairman and managing director at Morgan Stanley International and country head for Italy. He is non-executive chairman of Fondazione Carlo Alberto for economic research, and chairman of the advisory board of Fondazione Eni Enrico Mattei, which he managed from 1989 to 2001.