In the "good" old days of the property boom developers paid Estate Agents up to 15% commission, and agents also charged a private property owner commission for selling the property.
I have come accross agents selling bank repossessions where he bank only pay circa1% commissions to the selling agent so they are now asking buyers to pay commissions or finders fee. I have seen this as a % or as a flat rate example 6,000 Euro.
Take a look at many of the bank websites, and view the 1,000s of repossessed properties they are selling direct, you could save yourself 3%.