The FAI and the IRFU refused to be drawn today on their preferred location for a new 65,000 all-seater stadium.
Both bodies delivered the results of a feasibility study into the building of a new stadium to the Minister for Arts, Sport and Tourism, Mr John O'Donoghue this afternoon.
The study included a technical assessment of five sites, a detailed breakdown of construction costs, estimated funding requirements and the potential contribution from the sporting bodies.
The joint delegation indicated that the net cost of the project - over a six year period - would cost between €353 million and €397 million. This figure would include a joint FAI, IRFU contribution of €118.5 million, depending on the site chosen.
The Minister will consider the report's findings and the views of both organisations before bringing his decision to the Cabinet.
The likelihood is that either Abbotstown and Lansdowne Road will be the preferred location. The former is considered the more likely with construction costs estimated at about €350 million for a 65,000 seater stadium.
But Lansdowne Road holds a special significance for supporters of both codes, and a move to Abbotstown would mean the ambiance of going to a match in a city centre location would be lost.
Most modern stadiums throughout the world are located on the edge of cities but in recent years there has been a revival in construction at city locations. A move to Abbotstown would buck the trend.
Other locations suggested for the stadium are IRFU-owned lands at Newlands Cross and the former site of the Irish Glass Bottling Plant at Ringsend. However, both sites are not thought to be in the running.
The Dublin Chamber of Commerce (DCC) wants a city centre location for the stadium, which effectively means they favour a redeveloped Lansdowne Road.
In a survey released today, the DDC revealed 76 per cent of its members want the new stadium should be located in Dublin 1,2 or 4.
The DCC is concerned about the loss of trade to the hotel and licensed trade industries in the city centre and say Abbotstown would not have sufficient infrastructure to support the stadium.
Mr Declan Martin, Dublin Chamber Director of Policy, said: "We need to be careful in basing decisions purely on the capital cost of the stadium. While the Abbotstown project, as a greenfield site, may be the cheapest, we need to take all of the supportive facilities into account in making the decision as to where to locate the stadium.
"A city centre development can take advantage of the infrastructure already in place and the tourism benefits to Dublin as whole, from shopping to entertainment to the hotel industry, would be enormous".