Full Cost Breakdown: Mortgage, Tax and Fees When Buying in Castellón

Anyone searching online for property in Castellón eventually asks the same question: what does it actually cost once tax, notary and legal fees are added? For a non-resident buyer coming from the United Kingdom, the answer involves several separate bills that arrive at different points in the process, some payable before completion and some after.

This guide sets out each cost in order, from the mortgage itself to the paperwork a UK income profile needs, so you can plan a realistic budget for a purchase in Castellón rather than being surprised at the notary's office.

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.

According to the INE annual census, 627,620 people were registered as living in the whole of Castellón province on 1 January 2025. The count takes in every town and village across the province, not only its capital. 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.

Only 1,423 British nationals appear in INE's register for the whole province of Castellón on 1 January 2025, a small number of compatriots. The padrón only counts people living there most of the year, so second-home owners in the province are not included. 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 3,955 homes currently advertised for sale across the province of Castellón show a median asking price of €1,740/m² and a median ticket of €179,000. Both sit below the €3,135/m² median across the 130 towns we track across Spain, making the province one of the more affordable among them. Half of the properties currently listed are priced between €1,230 and €2,370 per square metre, with cheaper and more expensive homes on either side of that middle band.

Based on €179,000, the median asking price in Castellón (province), transfer tax at 9 % comes to roughly €16,100; add about €2,100 for notary, registry and gestoría costs and the total reaches approximately €18,300. This amount sits outside the mortgage and has to be available in cash before completion. All prices shown are asking prices from adverts active on 2026-11-01, not completed sales. The price eventually paid is always a matter of negotiation, shaped by condition, precise location and orientation.

To illustrate how varied property markets can be within a single province, this table compares the towns we monitor in Castellón by population, foreign residents per 100 inhabitants and median price per square metre.

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.

As Castellón is served by only one commercial airport, Aeropuerto de Castellón (CDT), buyers near the provincial border should also weigh up whether an airport just across the boundary might be more convenient. 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. January's mean of 10.6 °C and minimum of 5.8 °C, compared with August's mean of 25.6 °C and maximum of 30.3 °C, describe a cool-mild winter. Heating is a real consideration, so it is worth asking about it when viewing any home. The area gets a moderate amount of rain, around 467 mm annually over about 46 days. Sunshine totals around 2,755 hours a year. All figures are AEMET's official 1981-2010 normals for the Castelló - Almassora station, about 4 km away; expect small local variations, especially further inland or at higher elevation.

The province of Castellón saw 14,098 registered home sales in the year to 07/2026, per INE. A busier market like this generally offers more comparable transactions and greater choice. Bear in mind that these numbers reflect the province of Castellón overall; they shift a great deal between towns and between individual properties. Let us know what you have in mind so we can look at your case.

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 Spanish mortgage for a property in Castellón is only one line in the budget. Non-residents are usually asked for a larger deposit than residents, and the bank will also charge for the valuation of the property before it agrees anything. On top of that sits a set of taxes and fees that exist regardless of how the purchase is financed.

For UK buyers, currency matters too. Because the United Kingdom uses sterling rather than the euro, the amount you actually transfer to Spain can shift with the exchange rate between the day you budget and the day you complete, so it is worth building in some margin.

Every purchase in Castellón carries a similar structure of costs, even though the exact amounts depend on the property's value and type. Resale properties carry transfer tax (ITP), set regionally, while new builds carry VAT and stamp duty instead. Then come the fixed professional costs: notary fees for the deed, land registry fees to record your ownership, gestoría fees for handling paperwork, and the bank's valuation fee if you are financing the purchase with a mortgage.

None of these figures are quoted here as fixed amounts, because they change by region and by bank, but the categories below always appear on a Spanish completion statement.

Spanish banks assess non-resident applicants on income and existing debt shown in their home country. For a UK applicant, that usually means recent payslips and a P60, the last filed Self Assessment tax return, several months of bank statements, and evidence of any existing loans or mortgage commitments, alongside a valid passport. Some documents may need a sworn translation into Spanish, and occasionally an apostille, though the exact list depends on the bank.

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) and mixed-rate structures. We compare more than 20 Spanish banks to find which terms suit a buyer purchasing in Castellón, and the study is free and without obligation.

Owning property in Castellón as a non-resident brings an annual obligation: filing a non-resident income tax return (Modelo 210), even if the property is not rented out. Spain and the United Kingdom have a double taxation agreement, and a local tax adviser should confirm exactly how rental income or any future gain must be reported both in Spain and to HMRC.

When you eventually sell, the buyer withholds 3% of the price on account of your Spanish tax liability. It is worth noting, too, that the Golden Visa route for property investors ended on 3 April 2025 and is no longer an option for anyone buying now.

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.