Sean Dunne in Cape Town, where he is involved with the Niall J Mellon township charity

One of Ireland's largest property advisers has lodged High Court proceedings against developer Sean Dunne in a dispute that is understood to be over fees. CBRE has in recent weeks resigned from all of Dunne's instructions and High Court documents show that the agent issued the legal proceedings on 24 November.

CBRE said it had no comment to make and Dunne did not return a call seeking comment. Dunne's PR advisers said they will not be acting for their client until a decision is made on planning permission for his Jurys-Berkeley Court site in Ballsbridge, Dublin 4.

Dunne, who was in Cape Town, South Africa, recently, working with Niall J Mellon's township charity, revealed last week that he and his company had put €200m "of our own money in equity and shareholders' money" into his purchase of the Jurys-Berkeley Court and AIB Ballsbridge sites.

He said that he had paid an average of €56-€57m an acre for the 11 acres he owns there, which cost a combined €600m.

"I consider that I was lucky. I was first in," he told RTé Radio's Marian Finucane show last week, pointing out that land values there had risen strongly in the years after he bought his land.