A start-up which allows off-market properties to be shown to an exclusive ‘club’ of high net-worth people is to go into lettings.

Cobbletons is partnering with Chestertons, which will provide the lettings service.

All Cobbletons members will be offered a competitive rate of commission, as a result of the arrangement. They will continue to have a single point of contact within the Cobbletons team.

Members of the Cobbletons club currently number 300. They include overseas investors as well as affluent UK buyers, and are looking to purchase property from £5m upwards.

They have exclusive access to the Cobbletons site where agents can upload off-market properties which remain on the site for 14 days.

Because some of the club members also have properties to let – in some cases, they are developers – the need to offer a rental service arose, said founder Michael Antonio.

He said: “We wanted to facilitate lettings and feel that the best way to do this is by choosing a well-respected team.”

Antonio, formerly of Knight Frank, said that there are currently 12-15 agents contributing prime off-market properties to the site.

Richard Davies, head of lettings at Chestertons, said: “We are delighted to be working with Cobbletons as their preferred lettings agent and look forward to establishing a long-term business relationship.”