Tesco this morning announced that Alison Platt is to join its board of directors.

Platt is chief executive of Countrywide, the UK’s largest estate agency chain. She is to join Tesco, the UK’s largest supermarket chain, as a non-executive director on April 1.

Market watchers will be interested in the appointment: Tesco previously ran a property business, deemed by the then Office of Fair Trading to be an estate agency, while Platt has spoken of her ambition to launch some kind of online estate agent.

Tesco said this morning that Platt has “a wealth of relevant experience of the property sector and customer service delivery”.

Before joining Countrywide, Platt held a range of senior posts, including at Bupa.

She is a non-executive director of Cable & Wireless Communications plc, and was previously chair of ‘Opportunity Now’, which seeks to accelerate change for women in the workplace.

Platt was also a non-executive director of the Foreign & Commonwealth Office between 2005 and 2010.

She is to join Tesco’s Remuneration Committee.

Tesco also announced another new non-executive director appointment, that of Simon Patterson, managing director of technology investment firm Silver Lake Partners.