Appraisal Costs. The actual cost of a home appraisal depends largely on the size of a home and the extent of the appraisal. The standard appraisal rate is between $300 and $700 in 2010. Appraisers, though, generally charge more for larger homes and more valuable homes. Appraisals that do not require the appraiser to go inside the home are less costly, but they are also less common. Most appraisals require full inspections of a home.