Rightmove is one of the most popular websites in the UK for anyone looking to buy a house . They usually have a few house for sale in Ireland listed too.
The main Irish websites for searching for houses for sale are Daft.ie and Myhome.ie .
There is also Property.ie - but that is just a copy of Daft.ie.
The vast majority of estate agents or auctioneers in Ireland use Daft.ie or Myhome.ie - the best ones will use both.
Private sellers can also use Daft.ie to sell their house - but they are not allowed to list houses on Myhome.ie