Buyer's Guide · Spain Property
Catastral value is not market value. It's the Spanish government's administrative figure for calculating annual taxes like IBI. Here's what it is, what it's used for, and why it's always lower than what you paid.
This is one of the most common points of confusion we see from buyers researching Spanish property in expat groups and forums. When people say 'the notary value was half what I paid', they're almost always looking at the catastral value — not an actual transaction record.
Catastral value (valor catastral) is the Spanish government's administrative valuation of your property. It is used to calculate annual taxes like IBI (council tax) and non-resident income tax. It is deliberately set well below market value, typically 40-60% lower than what you actually paid. This is normal and by design. It is NOT an indication of what your property is worth on the open market.
01
Every property in Spain has a catastral value. It's assigned by the Catastro — the government's property registry, run by Spain's Ministry of Finance. Think of it as the government's internal number for your property. It exists so they can calculate your taxes. It has nothing to do with what your property is worth.
The number is built from a formula. It takes into account location, land area, built area, property type, use classification, age, build quality, and local planning conditions. Then a ministerial coefficient of 0.5 is applied to make sure the result stays below market value. That's why your catastral value is roughly half — or less — of what you paid.
This is not an error. It is not a sign that something went wrong with your purchase. It is how the system is designed to work.
02
IBI (Impuesto sobre Bienes Inmuebles): Your annual council tax, calculated as a percentage of the catastral value. The rate is set by each municipality. For example, a property with a catastral value of €200,000 would typically incur an annual IBI bill of approximately €800–1,000 at Marbella's municipal rate.
IRNR (Impuesto sobre la Renta de No Residentes): Non-resident income tax. If you do not rent out your property, Spain taxes you on 'imputed income' calculated as 1.1% or 2% of the catastral value. The tax rate is 19% for EU/EEA residents and 24% for others.
Plusvalia Municipal: When you sell, the seller pays this tax on the increase in land value, calculated using the catastral value of the land portion.
It is NOT used for calculating transfer tax (ITP) on purchase — that uses the valor de referencia (explained in section 03 below) or the declared purchase price, whichever is higher. It is also not used for determining market value.
03
These are two different numbers from the same institution (the Catastro), and they serve different purposes.
Catastral value: This is the older system, updated infrequently (every 8-10 years with annual coefficient adjustments). It is used for annual taxes and is always well below market value. A ministerial coefficient of 0.5 ensures it does not exceed market value.
Valor de referencia: Introduced in January 2022, this figure is updated annually. It is based on actual notarial transaction data and is designed to be closer to market value. It is used as the minimum tax base for transfer tax (ITP) and inheritance/gift tax (ISD).
The valor de referencia can be higher than the catastral value for the same property. Key difference: if you buy a property for less than its valor de referencia, your transfer tax is calculated on the reference value, not what you paid. This can increase your tax bill. You can challenge the valor de referencia, but the burden of proof is on you.
04
You can find your catastral value on your IBI bill (recibo de IBI), which is issued annually by your local town hall.
Alternatively, you can access it through the Catastro's online portal at sedecatastro.gob.es. This requires a digital certificate, Cl@ve, or your NIE number and numero de soporte. You can also visit the Catastro office at your local town hall.
Note that you can only check the catastral value of properties you own or have a registered interest in. You cannot look up a neighbour's catastral value. However, the valor de referencia is publicly accessible on the Catastro website at sedecatastro.gob.es and does not require property ownership to view.
05
'My catastral value is half what I paid, something must be wrong': This is completely normal. The system is designed this way to ensure administrative values do not exceed market reality.
'Catastral value is what the government thinks my property is worth': Not quite. It is an administrative figure for tax calculation, not a market valuation.
'I should use catastral value to judge if a property is fairly priced': No. Catastral value has no relationship to current market conditions. Use transaction data and comparable sales instead.
Buyer's Guide Series
Buying Property in Spain
Banks in Marbella, Spain
Best Areas to Buy in Marbella
Cost of Buying Property in Marbella
Mortgage in Spain for Foreign Buyers
NIE Number in Marbella, Spain
Property Taxes in Marbella
The 4 Prices of a Spanish Property
How Notary Transaction Data Works
Catastral Value in Spain Explained
Explore Area Data
Marbella Report 2026
Spain does not publish individual sale prices. Our report contains transaction data from official notary and Land Registry records for all 28 Marbella sub-areas, so you can see what properties actually sell for in each district — the real number, not the administrative one. For more on how we source this data, see our Methodology page.
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The information on this page is provided for general guidance only and is updated periodically. Always verify with a qualified Spanish lawyer before proceeding.
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