Buying a Villa in Castellón: The Mortgage Steps for a UK Buyer

Castellón attracts a steady flow of British buyers looking for a villa with space, a garden and often a pool. The property side moves fast once you find the right house, but the financial side needs to be lined up in advance, because a Spanish bank cannot study your file, and a notary cannot complete a sale, without certain documents already in place.

This guide sets out the practical sequence for a non-resident buyer from the United Kingdom: what has to happen before you make an offer, what the bank needs once you do, and what happens on completion day. None of it replaces independent legal and tax advice, but it should help you understand what to expect and when.

Castellón province lies along the northern Costa del Azahar, offering a coastline with towns such as Peñíscola alongside inland mountainous areas. It tends to appeal to buyers seeking a quieter, less developed coastal environment compared to areas further south, including those interested in traditional Spanish towns and countryside.

The region is generally accessed via Valencia or Castellón airports, with more limited direct international flight options than larger hubs. Property types include coastal apartments, traditional village houses, and rural fincas, with activity increasing during the summer tourist season.

In Castellón the word "villa" can mean two quite different things, and the bank treats them differently. A villa on the coastal strip around Peñíscola and the Costa del Azahar usually sits on land registered as urban, with a clean match between the cadastral description and the land registry entry. A finca in the mountainous interior, by contrast, is often built on land classified as rústico, and Spanish banks look more closely at that classification before they decide how much weight to give the property in the mortgage file. The valuer and the gestoría need to confirm what is actually allowed to be built and used on that plot, not only what already stands on it.

For older village houses inland, buyers should expect the bank or the gestoría to ask for a habitability certificate and for confirmation that any pool, garage or extension was built with the correct licence from the town hall. Coastal villas built more recently tend to have this paperwork in order already, but older coastal properties near Peñíscola's historic core can carry the same kind of gaps as inland houses, so the same checks apply regardless of whether the property looks close to the sea or hidden in the hills.

Castellón is generally reached through Valencia or Castellón airport, and neither offers the density of direct international routes found further south. For a non-resident buyer this changes the rhythm of the process described elsewhere on this page: instead of several short visits, most buyers try to condense the NIE appointment, the bank account opening and the first viewings into a single trip, then handle as much as possible from a distance afterwards.

Because a second or third trip is not always convenient, many buyers grant a notarial power of attorney to a trusted representative early on, so that the valuer can gain access to the property and, later, so that signing at the notary does not depend on a flight being available on a particular week. This is especially relevant for fincas well inland, where the valuer's visit needs to be arranged directly with whoever holds the keys, rather than through a rental agency as often happens on the coast.

Castellón belongs to the Comunitat Valenciana, and it is the regional government that sets the transfer tax (ITP) applied when a resale villa or finca changes hands; the table on this page gives the current rate. That figure feeds directly into the completion budget and needs to be added to notary, land registry, gestoría and valuation costs mentioned elsewhere on this page.

New-build villas, increasingly common along parts of the Costa del Azahar as coastal development continues, are taxed differently: buyers pay VAT at 10% together with stamp duty, instead of the regional transfer tax. This distinction matters when comparing a finished resale finca with an off-plan coastal villa still under construction, since it changes both the tax line and the timing of when that tax becomes due.

Activity in Castellón rises sharply during the summer tourist season, and that affects far more than traffic into Peñíscola. Notaries, valuers and gestorías across the province get busier at exactly the time many non-resident buyers prefer to visit, so appointments booked in July or August often need to be arranged well in advance.

Buyers aiming to complete before or during the high season should start the file preparation described elsewhere on this page several months earlier, since a valuation delayed by a fully booked calendar, or a notary slot pushed back a few weeks, can move completion day into a period when the property is harder to access for a final check, or when the bank's own decision process is running slower because staff are on leave.

The figures below describe Castellón (province) as it stands now — residents, advertised home prices, access routes and climate — each dated and sourced. Use them to form a realistic view of Castellón (province) while you work out what you can afford.

The province of Castellón as a whole, not merely its capital city, had 627,620 registered residents on 1 January 2025, according to the INE annual census. This figure covers every municipality within the province, from its largest towns to its smallest villages. Foreign nationals make up 118,810 residents of the province of Castellón, roughly 19 per 100 inhabitants. The figure is meaningful without being overwhelming, and it shifts noticeably depending on which town in the province you look at.

According to INE, only 1,423 British nationals were registered across the province of Castellón as of 1 January 2025. That low figure reflects the padrón's focus on year-round residents, excluding owners who use a property there only part-time. Here are the largest foreign communities registered in Castellón (province) on 1 January 2025, drawn from the nationality figures INE publishes for each municipality.

This second table covers nationalities the census does not itemise separately, such as Germans, Italians, Dutch, Belgians or Scandinavians, across Castellón province. The data come from 1 January 2022, the latest INE edition with full nationality detail, a year different from the table above.

In our own price bank, the 2,822 homes currently advertised for sale across the province of Castellón show a median asking price of €1,780/m² and a median ticket of €175,000. Both sit below the €3,210/m² median across the 127 towns we track across Spain, making the province one of the more affordable among them. Prices vary considerably from one listing to the next, though the bulk of the market, its middle half, falls between €1,260 and €2,400 per square metre.

Based on €175,000, the median asking price in Castellón (province), transfer tax at 9 % comes to roughly €15,800; add about €2,100 for notary, registry and gestoría costs and the total reaches approximately €17,800. This amount sits outside the mortgage and has to be available in cash before completion. The figures reflect asking prices in listings live on 2026-10-05, rather than prices actually paid. Final amounts are agreed through negotiation and vary with the state, location and orientation of each property.

Below is a comparison of the towns we follow in Castellón, covering inhabitants, foreign residents per 100 inhabitants and median asking prices per square metre across the province.

Castellón (province) showed 6,990 estimated holiday-let dwellings in 05/2026, per INE's experimental platform-based statistic, totalling 37,362 bed places and about 11 per 1,000 residents. This points to a moderate holiday-let presence, with a regional licence still required for tourist letting.

The only commercial airport within the province of Castellón is Aeropuerto de Castellón (CDT), so it is worth checking in advance whether it operates in the season you plan to travel, since schedules can vary through the year. The climate figures below were recorded in or near Castellón de la Plana, the provincial capital, and conditions elsewhere in the province, inland, at altitude or on other islands, can differ noticeably. With January averaging 10.6 °C and overnight lows around 5.8 °C, against an August mean of 25.6 °C and highs near 30.3 °C, winters are mild rather than warm. Checking the heating in any home is a sensible step. Annual rainfall sits around 467 mm, falling on roughly 46 days, neither particularly dry nor wet. Sunshine totals around 2,755 hours a year. These figures are the official climate normals (1981-2010) from AEMET, Spain's state weather agency, at its Castelló - Almassora station, about 4 km away; conditions at the exact property can differ slightly, especially inland or at altitude.

14,203 home sales were registered in the province of Castellón in the twelve months to 06/2026, according to INE. A market of this size usually means more comparable sales and a wider choice of homes for buyers. These figures describe the province of Castellón as a whole and can change considerably from one town to another, and from one property to the next. Tell us what you are looking for and we will go through the numbers together.

The transfer tax on a resale home is set by each Spanish region. In Castellón the general rate is 9 %, and on top of it come notary, land registry and gestoría (roughly one more percent). On a new build you pay 10 % VAT plus stamp duty instead of the transfer tax. This money is not lent by the bank.

The NIE (Número de Identificación de Extranjero) is the Spanish tax number every non-resident needs to buy property, sign a mortgage or pay taxes in Spain. It can be requested at a Spanish consulate in the United Kingdom or, in some cases, in Spain itself, and it should be one of the first things you sort out, well before you commit to a specific villa in Castellón.

Alongside the NIE, you will need a Spanish bank account. This is where mortgage payments, notary fees and running costs such as utilities and community charges will be handled. Since the United Kingdom uses the pound rather than the euro, it is worth thinking early about how you will transfer funds and manage exchange-rate movements between the two currencies.

Spanish banks look at income, existing debts and overall profile before they will consider financing a villa purchase. For a UK buyer this usually means a recent P60 and payslips, your last filed Self Assessment tax return, bank statements covering the last few months, evidence of any existing loans or mortgage commitments, and a valid passport. Some banks also ask for a sworn translation of these documents, and occasionally an apostille, though the exact list varies by bank.

It is sensible to have this file largely ready before you make a formal offer on a villa in Castellón. Non-resident buyers are usually asked for a larger deposit than residents, though the exact share always depends on the bank, your country and your personal profile — nobody can quote a fixed figure before studying your case.

Once you have found the villa, a private purchase offer or reservation contract usually follows, setting out price and conditions. At this point the bank will commission its own valuation, or tasación, of the property, which is separate from any survey you might arrange yourself and is used purely to confirm the value against which the loan is considered.

Alongside the valuation, the bank studies your income, debts and the property itself before deciding whether, and on what terms, it can offer a mortgage. Spanish mortgages typically run until the borrower is around 70 to 75 years old, and can be arranged as fixed, variable (linked to Euribor) or mixed rate, depending on the bank and your circumstances.

On completion, the notary formalises the sale and, if there is a mortgage, the loan deed at the same time. Beyond the price of the villa, buyers should budget for transfer tax (ITP) on resale homes, set by the region, or 10% VAT plus stamp duty on new builds, along with notary, land registry, gestoría and bank valuation fees.

Once you own the villa, as a non-resident you will need to file an annual Modelo 210 tax return in Spain. Spain and the United Kingdom have a double taxation agreement, and a local tax adviser should confirm exactly how any rental income or future gains must also be reported to HMRC. If you ever sell, the buyer will withhold 3% of the price on account of your Spanish tax.

Spain is a relatively short flight away from most UK airports, making regular visits to a Spanish property straightforward for owners based in Britain. Many British buyers are drawn to Spain for its climate, coastal lifestyle and established expatriate communities. One practical point to bear in mind is that Spanish inheritance law differs from UK rules, so it is worth taking specific advice on how it may affect the property and one's estate. Currency movements between sterling and the euro can also affect the overall cost of purchase and ongoing expenses.

Spain and the United Kingdom have a double taxation agreement in place, and a local tax adviser should confirm how rental income or gains from Spanish property must be declared and reported to HMRC.

As the United Kingdom is no longer an EU member state, British citizens may stay in Spain for up to 90 days in any 180-day period without a visa, and must apply for a visa or residence permit for longer stays.

Since the United Kingdom uses the pound sterling (GBP) rather than the euro, buyers should factor in exchange-rate movements and currency conversion costs when paying for a property or transferring funds to Spain.