Who is affected by the new Land Registry Law: what you should know if you want to sell your house or buy a home. The new cadastral value is the one that will set the sale price of a property and you should inform yourself. And it is that the new law can bring negative consequences for your sale if you do not inform yourself properly. Either for the Plusvalia, the income statement, and specifically, but no less important, in the case of sales of inherited properties.