An appraisal is a thought process leading to an opinion of value. This opinion or estimate is arrived at through a formal process that typically uses the three ”common approaches to value”. They are the Cost Approach – which is what it would cost to replace the improvements, less physical deterioration and other factors, plus the land value. There is the Sales Comparison Approach – which involves making a comparison to other similar, nearby properties which have recently sold. The Sales Comparison Approach is normally the most accurate and best indicator of value for a residential property. The third approach is the Income Approach, which is of most importance in appraising income producing properties – it involves estimating what an investor would pay based on the income produced by the property. For a more detailed description of the appraisal process click here: What is an appraisal?