Leinster will play all their Heineken Cup home matches at the RDS grounds.
Their present home at Donnybrook caters for only a 7,000 crowd while Lansdowne Road is too big and impersonal.
Leinster will play Bath at the RDS on 22 October, Bourgoin on 10 December and Glasgow on 13-15 January.
Leinster make their debut at their new venue with a Celtic League game against the Blues on 15 October.
However, they will revert to the newly-renovated Donnybrook pitch for the remainder of the Celtic League. The RDS stadium, which is the home of the Dublin Horse Show, ground will have four stands and will provide parking for over a 1,000 cars.
"We feel that this is an attractive offering for both our supporters and the team," said Leinster Chief Executive Mick Dawson.