House prices rose slightly last month by 0.6%, and are up 15.8% in the last year.
The Central Statistics Office (CSO) says the biggest rise was in Dublin, where house prices rose 1% in April and 20.2% in the year.
Meanwhile apartment prices in the capital remained unchanged last month.
However, the CSO adds that sub-indices for apartments are based on low volumes of transactions, and therefore have greater volatility.
Outside of Dublin, prices rose by 0.3% in April and by 11.4% in the year.
At a national level, residential property prices were 37.8% lower than their peak level in 2007.
Dublin house prices were 36.3% lower than their peak, Dublin apartment prices were 42.2% lower than their peak and Dublin residential property prices overall were 38.1% lower than their highest level.
Outside of the capital, residential property prices were 41.4% lower than their highest level in 2007.