Housing groups and politicians say more could be done to help reduce the number of empty homes in Wales.
The latest figures show there are at least 23,000 properties which have been empty for more than six months.
The Welsh Government says it is on track to meet a target of bringing 5,000 empty homes back into use by 2016.
Kelsey Redmore reports.
More top news
John Charles scored more than a hundred goals for the club, and was known as the darling of Italian football
The Plaid leader urged voters to give her party a mandate, so that she can give Wales a voice in Parliament as the SNP has for Scotland.
90,000 people are expected to attend the youth festival, which runs from the 29th May to the 3rd June.