What is CRU / Código de Registro Único?
The Código de Registro Único (CRU), also known as the Identificador Único de Finca Registral (IDUFIR), is a unique 14-digit number that is assigned to every property in Spain. It serves as a unique identifier of the property throughout the country and is used in all official registers, including the land register and the cadastre. Important points: The CRU is created automatically for every