Spain's administrative property register recording the physical, legal, and economic characteristics of all real estate — distinct from the Land Registry (Registro de la Propiedad).
The Catastro — formally the Catastro Inmobiliario — is Spain's administrative property register managed by the Dirección General del Catastro under the Ministry of Finance. It records the physical characteristics (surface area, construction type, land use), economic characteristics (cadastral value, catastral reference number), and legal ownership data of every property in Spain. The Catastro provides the basis for several property-related taxes, most notably the IBI (Impuesto sobre Bienes Inmuebles) and the plusvalía.
The Catastro is often confused with the Registro de la Propiedad (Land Registry). They are entirely separate registers serving different purposes. The Catastro is administrative and tax-focused: it records what the property is and what it is worth for tax purposes. The Registro de la Propiedad is legal and ownership-focused: it records who owns the property and any charges, mortgages, or encumbrances on it. Both should be consulted before any property purchase — the Catastro to verify the physical data, the Registro to verify clean title.
Every Spanish property has a unique Referencia Catastral — a 20-character code that identifies the property in the Catastro. This code appears on IBI tax bills, on the escritura (title deed), and on property listings. When searching for a property's data on the Sede Electrónica del Catastro (sec.gob.es), you can use this reference to access the catastral description, value, and a map showing the property's boundaries.
The valor catastral — cadastral value — is the Catastro's assessed value of the property and is distinct from the market value. In most parts of Spain, the cadastral value is significantly below market value (often 30–60% of market price, though this varies widely by municipality and when the last revision was carried out). The IBI annual property tax is calculated as a percentage of the valor catastral, not the market value. Similarly, when declaring Spanish income tax (IRPF) on an imputed rental income for non-rented second homes, the imputed income base is also the valor catastral.
When buying a property in Spain, request the Nota Catastral as part of your due diligence to verify that the physical description in the Catastro matches the actual property. Discrepancies between the Catastro area and the actual area can arise after extensions, subdivisions, or historical inaccuracies. Significant discrepancies should be resolved before completion and may require formal correction (actualización catastral).
The Catastro is an administrative register managed by the Ministry of Finance that records the physical description and cadastral value of properties for tax purposes. The Registro de la Propiedad is a legal register managed by the Ministry of Justice that records property ownership and any charges or mortgages. You need to check both before any property purchase in Spain.
The Referencia Catastral is a unique 20-character alphanumeric code that identifies every property in Spain within the Catastro. It appears on IBI tax bills, property title deeds (escritura), and official property documents. You can use it to look up a property's catastral data at sec.gob.es.
The valor catastral is used to calculate the annual IBI property tax (typically 0.4%–1.1% of the cadastral value), the plusvalía on sale, and the imputed income tax on non-rented second homes for non-residents (typically 1.1%–2% of cadastral value declared as income). Understanding your property's cadastral value helps estimate these recurring tax costs.
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