An FHA appraisal costs $350 - $550. A good way to keep the cost down is to make sure the house being appraised is FHA compliant.If its not the appraiser will have to go back out to do a respect ion of the property which usually will cost the buyer another $100.n FHA appraisal costs $350 - $550. A good way to keep the cost down is to make sure the house being appraised is FHA compliant.