OnTheMarket has announced a new non-executive director, Rupert Sebag-Montefiore.

The appointment reunites Sebag-Montefiore with OTM boss Ian Springett after both were at the helm of PrimeLocation, the early forerunner of an agents’ mutual portal.

The pair masterminded its lucrative exit.

PrimeLocation, which was formed by estate agents and owned by estate agency shareholders including a number of London and regional independents plus Savills, Knight Frank and Strutt & Parker.

It was sold to the Daily Mail and General Trust in 2005 for £48m – at the time considered an eye-watering sum.

Sebag-Montefiore was non-executive chairman of PrimeLocation’s holding company Fastcrop, and Springett was CEO.

After the sale to DMGT, Sebag-Montefiore stayed on as non-executive chairman until 2010. PrimeLocation is now part of the Zoopla group.

Sebag-Montefiore’s impressive CV includes Savills, where he was head of global residential. He was also CEO for 13 years of Savills in the UK.

He sits on various external investment committees, including Christ Church College, Oxford, and is a trustee of the Orchestra of the Age of Enlightenment.

Yesterday Springett welcomed Sebag-Montefiore to OTM, saying: “Rupert has extensive executive and non-executive experience in and beyond the UK property sector.

“He brings a deep understanding of the property market in general and an invaluable insight into the perspective of estate agents and house builders in particular. We greatly look forward to working with him as we continue to build the UK’s agent-backed property portal.”

Sebag-Montefiore said: “It is with great pleasure that I join the Board of OnTheMarket at such an exciting and important phase in its development. I have watched the business grow from a concept to a serious market player in the UK portals sector.

“I look forward to supporting an entrepreneurial and seasoned leadership team in achieving its growth objectives in the interests of shareholders, customers and property-seekers alike.”