A tasación is an official property valuation carried out by a licensed Spanish valuer (a tasador homologado) and it decides one thing above all others: how much a bank will lend you against a Costa Cálida property. In 2026 the golden rule is that a Spanish mortgage lender lends a percentage of the lower of the purchase price or the tasación value — so if the valuation comes in below what you agreed to pay, you cover the shortfall in cash. That single sentence is the reason valuations matter to every buyer around the Mar Menor, Mazarrón, Águilas or Cartagena.
This guide explains, in plain terms, how the tasación works on the Costa Cálida (and by extension the Costa Blanca, Costa del Sol and Costa Almería), how it differs from the purchase price, why it is not the same as the tax authority's valor de referencia, what it costs, and what to do if the valuation disappoints. If you are financing your purchase, read this before you sign the arras.
A tasación is a formal, regulated valuation report produced by a valuation company approved by the Banco de España and carried out to the standard set out in Orden ECO/805/2003. It is the document a lender relies on to approve a mortgage. Unlike an informal estate-agent appraisal or an online estimate, a tasación is legally structured, signed by a qualified tasador homologado, and valid for six months from the date of issue.
The report typically includes the surveyor's physical inspection of the property, its cadastral and Land Registry data, a set of comparable sales in the same zone, the reconstruction cost, and a final "market value" figure. On the Costa Cálida, where a lot of stock is urbanisation villas and apartments near the Mar Menor, comparables tend to be plentiful, which usually makes valuations relatively predictable.
For a mortgage, the lender requires the tasación, but the buyer pays for it. You are entitled to keep the report and, under Spanish transparency rules, to use a valuation from any Banco de España-registered valuer — you are not obliged to accept the one the bank tries to sell you, though in practice many buyers use the bank's panel valuer for speed. If your mortgage falls through, you keep the valuation and can present it to another lender.
The purchase price is what you and the seller agree. The tasación is an independent professional's opinion of market value. They frequently differ — and the gap is exactly what buyers need to plan around.
Spanish banks lend against the lower of the two figures. A typical non-resident mortgage on the Costa Cálida is around 60–70% loan-to-value; residents may reach 80%. Crucially, that percentage is applied to the tasación, not the price, when the tasación is lower.
| Scenario | Purchase price | Tasación value | Bank lends (70% of lower) | Cash you need (deposit + shortfall) |
|---|---|---|---|---|
| Valuation matches price | €250,000 | €250,000 | €175,000 | €75,000 |
| Valuation above price (rare bonus) | €250,000 | €270,000 | €175,000* | €75,000 |
| Down valuation (€20k under) | €250,000 | €230,000 | €161,000 | €89,000 |
*Even when the tasación exceeds the price, the bank still caps lending at 70% of the price — you don't get to borrow against value you didn't pay for.
The takeaway is simple: a down valuation doesn't just reduce your loan, it increases the cash you must find, because you still owe the seller the agreed price. This is why we always advise buyers to arrange the valuation early — ideally during the reservation and arras stage rather than after committing large sums. Our guide to the reservation deposit on the Costa Cálida explains what is refundable if financing falls through.
This is where most competitor articles get muddled. There are two official numbers attached to a Spanish property purchase and they do completely different things:
On the Costa Cálida, resale transfer tax (ITP) is 7.75% in 2026 (Ley 3/2025 — note that the old 8% figure is still repeated across many websites and is out of date). New builds pay 10% IVA plus 1.5% AJD stamp duty. Whichever applies, the tax is charged on the higher of price or valor de referencia — so if the tax office says the reference value is €260,000 and you paid €250,000, you pay ITP on €260,000. This is entirely separate from what your bank's tasador decides.
| Figure | Amount | What it decides |
|---|---|---|
| Purchase price | €250,000 | What you actually pay the seller |
| Tasación (bank valuation) | €245,000 | Your maximum mortgage base |
| Valor de referencia | €260,000 | ITP base — tax charged on €260,000 at 7.75% |
For the full breakdown of local property taxes around the Mar Menor, see our guide to Costa Cálida holiday-home taxes.
A tasador homologado weighs several methods, but on typical coastal residential stock the comparison method dominates — recent sales of similar properties in the same urbanisation or town. This is why valuations in dense, homogeneous areas (Los Alcázares, San Javier, Puerto de Mazarrón) tend to be tight and reliable, while unusual or rural properties are harder to value.
Key factors the valuer records:
Rural and semi-rural Costa Cálida properties deserve extra care: if the plot is suelo rústico, has an unregistered extension, or lacks mains water, the valuation (and the mortgage) can suffer. Our guides to AFO certificates for rural builds and rural water connections explain why.
On the Costa Cálida a residential tasación typically costs between €300 and €600 including IVA, depending on property size and value; large villas or rural properties cost more. Turnaround is usually 3–7 working days from inspection, and the report is valid for six months.
Remember the tasación is one line in your total purchase costs. On a Costa Cálida resale, budget roughly 10–13% on top of the price once you add the 7.75% ITP, notary (~0.2–0.5%), Land Registry (~0.1–0.25%), lawyer (~1% + IVA) and gestoría (~€300). New builds run higher — around 12–15% — because of 10% IVA plus AJD. The tasación fee sits alongside these and is a mortgage cost rather than a tax.
A "down valuation" means the tasación is below the agreed price. On the Costa Cálida this is less common than in overheated markets, but it happens — particularly on properties bought fast, with rare features, or where the seller has pushed the price. Your options:
Because financing risk is real, we strongly recommend agreeing your mortgage in principle first. See our non-resident mortgage guide for 2026 rates and deposit expectations, and our non-resident buying guide for the full process.
Legally, no — a cash buyer has no lender and therefore no valuation requirement. But an independent tasación can still be money well spent. It gives you an objective view of market value before committing, helps you negotiate, and provides a benchmark for future resale. Many cautious cash buyers on the Costa Cálida commission one alongside a structural survey and a nota simple check for full peace of mind.
The tasación process itself is national — the same ECO/805/2003 standard and the same Banco de España-approved valuers operate across all four of Mediter's regions. What varies is the surrounding tax and price context:
| Region | Resale ITP | New-build stamp duty (AJD) | Tasación process |
|---|---|---|---|
| Costa Cálida (Murcia) | 7.75% | 1.5% | Same national standard |
| Costa Blanca (C. Valenciana) | 9% (from 1 June 2026) | 1.4% | Same national standard |
| Costa del Sol (Andalucía) | 7% | 1.2% | Same national standard |
| Costa Almería (Andalucía) | 7% | 1.2% | Same national standard |
For a wider look at how the coasts stack up on price and lifestyle, see our comparison of the four costas.
No. A tasación is a valuation for lending — it establishes market value. A structural survey assesses physical condition and defects. They answer different questions, and serious buyers often obtain both.
Six months from the date of issue. If your purchase drags on beyond that, the bank will normally require a new or updated valuation before completion.
Yes. You may use any valuer registered with the Banco de España, and you are entitled to keep the report. In practice many buyers use the bank's panel valuer for speed, but you are not obliged to.
They measure different things. The tasación reflects genuine market value for lending; the valor de referencia is a cadastral figure used to set transfer tax and is not always aligned with real sale prices. Your ITP is charged on the higher of the price or the valor de referencia.
The bank lends against the lower figure, so you fund the gap in cash, renegotiate the price, seek a second valuation, or — if your arras was subject to finance — potentially withdraw. Arrange that safeguard with your lawyer before signing.
No legal requirement, but an independent valuation is a sensible way to confirm you are paying a fair price and to benchmark future resale value.
Understanding the tasación is one of the smartest moves a financed buyer can make on the Costa Cálida — it protects your budget and your negotiating position. At Mediter Real Estate we help international buyers across the Costa Cálida, Costa Blanca, Costa del Sol and Costa Almería line up valuations, mortgages and legal checks so there are no surprises at completion. Contact Mediter Real Estate today to discuss a property in these regions and let us guide you through valuation and finance with confidence.
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