How much of a stipend should I give a priest for a house blessing?

The blessing of a house does not require a stipend, although it is always welcome. Instead of money, some families have a meal afterward to which the priest is invited. Some families give money anyway, as an expression of thanks to the priest for his services. The amount would depend on your means and the value of your money. $10 to 20 dollars is plenty for most areas I would think, considering that the stipend for a Mass is around $25 dollars.