The Japanese owners of Charles Haughey's former Dublin mansion want to build 53 houses on its grounds.
Hotel company Toyoko Inn is planning to build the homes on part of the 250-acre Abbeville estate at Kinsealy in North County Dublin.
The company plans to develop the mansion, the home of the former Taoiseach who died in 2006, into a hub for a "tourism and recreational".
Representatives of the company had a pre-planning meeting with officials from Fingal County Council in preparation for launching a formal planning application.
The 18th century mansion, home of the Haughey family for four decades, has 14 bedrooms and is a listed building.
The Nishida family, who own the Toyoko Inn chain of more than 200 hotels, chiefly in Japan, bought the mansion through their company for €5.5m - significantly less than the €45m paid to the Haughey family by Manor Park Homes a decade earlier.
Toyoko Inn intends to expand into Europe with a strategy for hotels across the EU.
Toyoko Inn Ltd, its Irish company, has stated the group will establish new hotels in Ireland, Britain, France, Germany and the US.
It is locating its European headquarters to Dublin.
The head of the company, Norimasa Nishida, who has sponsored a GAA team in Japan for several years, also funded a Saint Patrick's Day parade in Tokyo.
Toyoko Inn is known as a no-frills, three-star hotels operator and employs 8,000 people.