Mortgage for a holiday home in Castellón: what non-residents should know

Spanish banks do not have a separate mortgage product for holiday homes. Whether the property in Castellón will be lived in full time or visited a few weeks a year, the lender looks at the same things: the property, your income, your existing debts and your profile as a non-resident borrower.

What does change is the buyer's situation compared with someone moving to Spain permanently. You will still need a Spanish tax number (NIE) and a Spanish bank account to complete the purchase and make payments, and the bank will still ask for proof of income and debts from the United Kingdom, usually with a sworn translation.

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.

This section brings together dated, sourced data on Castellón (province): who lives there, what properties are asking for, how the area connects to the rest of Spain, and its climate. Reading them first should give you a clearer, realistic sense of Castellón (province) before you size a mortgage budget.

Castellón province, taken as a whole rather than just its capital, counted 627,620 registered residents on 1 January 2025 in the INE census. The number reflects the full territory, large and small municipalities alike, that makes up the province. The province of Castellón registers 118,810 residents of foreign nationality, about 19 out of every 100 people. That share is notable yet far from dominant, and it varies widely between towns within the province.

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. The table below lists the largest foreign nationalities registered in Castellón (province) on 1 January 2025, among those INE publishes for every municipality.

Beyond the main nationalities listed above, the INE also registers smaller groups, Germans, Italians, Dutch, Belgians or Scandinavians among them, across Castellón province. This breakdown reflects 1 January 2022, the last edition counting every nationality individually, a different year from the table above.

Our price bank includes 2,822 homes for sale throughout the province of Castellón, with a median of €1,780/m² and a median ticket of €175,000. Both are lower than the €3,210/m² median of the 127 towns we track across Spain, which puts the province on the more affordable side of the range. 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.

Taking €175,000 as the median asking price in Castellón (province), the resale transfer tax of 9 % amounts to about €15,800, with a further €2,100 for notary, registry and gestoría fees. That puts the total near €17,800, which a lender does not finance and must come from savings. 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.

According to INE's experimental estimate from holiday-rental platform listings, Castellón (province) had 6,990 tourist dwellings in 05/2026, offering 37,362 bed places and close to 11 per 1,000 residents. The presence is moderate overall, but a regional licence remains necessary 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. Because Castellón de la Plana is where these climate figures were measured, other parts of the province, further inland, at higher altitude or on separate islands, can feel quite different. January averages 10.6 °C, with a typical overnight minimum of 5.8 °C, while August reaches a mean of 25.6 °C and a daily maximum around 30.3 °C. Winter here is cool rather than cold, so heating matters and is worth checking in any home. Annual rainfall sits around 467 mm, falling on roughly 46 days, neither particularly dry nor wet. On average, 2,755 hours of sunshine are recorded each year. Source: the 1981-2010 climate normals published by AEMET, the state weather agency, for its Castelló - Almassora station, some 4 km from here; local conditions can differ, 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.

A non-resident buying a holiday home in Castellón goes through the same underwriting process as any other non-resident purchase: the bank studies the property, your income and your existing commitments before deciding whether to lend and on what terms. There is no separate, lighter track just because the home will sit empty part of the year.

What is consistent across Spanish banks is that non-residents are usually asked for a larger deposit than residents, and the exact share depends on the bank, your country and your profile. Mortgage terms in Spain typically run until the borrower is around 70 to 75 years old, and you can choose between fixed, variable (Euribor-linked) or mixed rates.

Before a Spanish bank will study a file for a property in Castellón, you need an NIE and a Spanish bank account open, since both are required to buy and to pay. The list of supporting documents varies by bank, but it usually includes proof of income, your UK tax return, recent bank statements and details of any existing mortgage or loan commitments, translated by a sworn translator.

Because the United Kingdom is no longer an EU member state, this also affects how long you can be in Spain while the process runs and afterwards, and it is worth planning visits around that limit rather than assuming an open-ended stay.

The mortgage is only part of the budget. On top of the price of a home in Castellón, buyers pay transfer tax on resale homes, set by each region, or 10 % VAT plus stamp duty on a new build, along with notary fees, land registry fees, gestoría costs and the bank's valuation of the property.

Once you own the property, non-resident owners must 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 how any rental income or eventual gain is declared both in Spain and to HMRC. Because the UK uses sterling rather than the euro, it is also worth planning for exchange-rate movement and conversion costs when transferring funds for the purchase or the ongoing mortgage payments.

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.