A single person needs to earn 133,000 euro a year to be able to buy a house in Dublin's southside.

That's in stark contrast to what you need to earn if you want a house in Longford - which you could buy with a wage of 26,000 euro.

The Irish Sun has published an affordability index using data from Daft.ie. 

Susan Keogh has been speaking to Karl Deeter from Irish Mortgage Brokers who put it together: