Pembrokeshire has seen the highest average house price rise in the year on year period from August 2020 to August 2021, latest figures from the Office of National Statistics (ONS) show.
The published data states that this county's average house price rose from £179,483 to £222,428, a rise of 23.9%.
Pembrokeshire has now gone from having an average house price below Wales' average property price - which currently stands at £194,575 - to more than £8,000 above it.
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The ONS figures also indicate the most expensive homes can now be found in Monmouthshire.
Although this county saw the lowest annual change, it tops the list of the most expensive area to purchase a property and the average cost was £295,000.
In contrast, the cheapest area to purchase a property was Blaenau Gwent, where the average cost was £112,000.
The ONS states that low numbers of sales transactions in some local authorities can lead to volatility and that the change in price in these local levels can be influenced by the type and number of properties sold in any given period.
Areas with low numbers of sales transactions should be analysed for their longer-term trends rather than focusing on monthly movements.
Wales as a nation has seen a national increase during this 12 months of 12.5% and is stated as growing faster than the UK annual rate of 10.6% over the same period.
The month to month Wales analysis shows an increase of 2.8% from July 2021 to August 2021.
Of all property types, detached houses showed the biggest annual growth, rising by 13.2% in the year to August 2021 to £296,000.
The lowest annual change of all property types was for flats and maisonettes, with an increase of 7.6% in the year to August 2021 to £126,000.
Although the figures give an indication of the property market in Wales, the ONS states that, 'as with other indicators in the housing market, which typically fluctuate from month to month, it is important not to put too much weight on one month’s set of house price data'.
James Skudder, company director at estate agency Country Living Group which covers Pembrokeshire, says: "Buyers are looking to move to the area as their prime residence, thinking 'If I can work from home let's move to the area we've always wanted to live, that we've dreamt about'.
Martin Jones, residential sales manager at JJ Morris, says the increasing need for space has been another important incentive.
He says: "With us, we have an increased number of people relocating here for a family home and usually that means they are able to purchase at or above asking price as Pembrokeshire is still cheaper than large parts of the UK.
"I've worked through 2006/07, the last boom period, and what we are seeing now is a far faster moving market, with the majority of sales exceeding an asking price which is already inflated because of demand."
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