A property valuation is significant for both home buyers and home sellers. Many owners do not have a clear idea of the market value of their property before selling it. The self-assessed property value is often based on the market value at the time or the emotional value of the property. Accordingly, home buyers are often uncertain about the actual value of the property due to a lack of transparency. The market value of a property changes depending on the economic situation and is dependent on supply and demand. Therefore, comprehensive knowledge of the regional real estate market is indispensable for an accurate valuation of the property. As a seller, you can only achieve a realistic price on the property market if you know the actual, data-based value of your property. A price that is set too high will scare off potential buyers, while a sales price that is too low can lead to a large loss of assets. With a data-based property valuation, these mistakes can be avoided and the property can be sold quickly and satisfactorily. Accordingly, a data-based property valuation also helps home buyers to obtain the necessary certainty about the price of the desired property and to make informed decisions in the purchase process.