Real estate valuation is the process of estimating the market value of a property. It is used to determine the value of a property for a variety of reasons, such as buying, selling, taxation, and financing. Valuation is based on a variety of factors, including location, size, condition, and amenities. Professional appraisers use a variety of methods to determine the value of a property, including the sales comparison approach, the cost approach, and the income approach.