The index of the price of homes is at its highest level ever – but the prices themselves remain slightly below the peak in 2007.
According to the CSO, there has also been a slight slowdown in the rate of increase.
In the border region, house prices have increased 17.4%.
The lowest median price was €145,000 in Longford, while the highest was €610,000 in Dún Laoghaire-Rathdown.
However there seems to be a slight slow down in the rate in which prices are increasing.
Nationally, Residential properties rose by 13% in the last year up until July – down just under 1% compared to June.
In Dublin prices increased by 10.4%, while the rest of the country saw prices just over 15% higher than a year earlier.
Property in the West of Ireland saw the largest annual percentage change, of just over 19%.