Treasury Holdings is seeking to take a commercial court case against businessman Harry Crosbie in a dispute that is believed to be related to the Spencer Dock development on Dublin's north quays.
Crosbie and Treasury Holdings both own land there that is being developed as a joint venture.
Treasury Holdings refused to comment on the issue and a spokesman for Crosbie said the businessman also had no comment to make.
Richard Barrett, who owns Treasury Holdings with business partner Johnny Ronan, lodged an affidavit last week in relation to the case.
Last week, the Spencer Dock Development Company, owned by Treasury
Holdings and Crosbie, received planning permission for an eight-storey office building. It is also currently seeking to develop an 11-storey office building with shops on the ground floor.
Crosbie is currently constructing an €850m shopping centre near Spencer Dock. He recently took a legal action against Dunnes Stores, claiming he had not been paid for construction work on their store there.