Buying in Castellón in Summer: Why Peak Season Can Delay Your Mortgage and Notary Date

Castellón is a popular destination for holidaymakers and that popularity does not stop at the beach. Estate agents, notaries, gestorías and bank branches across Castellón all handle a heavier workload between roughly June and September, at the same time as many staff take their own holidays. For a non-resident buyer coordinating a mortgage from the United Kingdom, this seasonal squeeze can turn a straightforward timeline into one with real waiting periods.

None of this means a summer purchase should be avoided. It means the steps that usually run in parallel — bank valuation, document checks, notary booking — need to be planned with more slack than you might assume if you are used to property transactions in the United Kingdom.

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.

What follows are measured, dated figures for Castellón (province) — who lives there, what homes are advertised for, how to get there and the climate — each one sourced. They help you build a realistic picture of Castellón (province) as you work out the budget for a Spanish mortgage.

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. Across the province of Castellón, 118,810 residents carry a foreign nationality, near 19 of every 100. This is a solid but moderate presence, one that differs a great deal from town to town across the province.

INE counted only 1,423 British nationals registered in the whole province of Castellón on 1 January 2025, a small number of compatriots. Remember that the padrón only reflects people living there most of the year, not second-home owners. The following table shows the leading foreign nationalities registered in Castellón (province) on 1 January 2025, according to the municipal-level data INE makes available.

A further table sets out nationalities not broken down above, among them Germans, Italians, Dutch, Belgians and Scandinavians, registered throughout Castellón province. Unlike that earlier table, this one uses data from 1 January 2022, the latest edition with full nationality detail.

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. Prices vary considerably from one listing to the next, though the bulk of the market, its middle half, falls between €1,230 and €2,370 per square metre.

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. The figures reflect asking prices in listings live on 2026-11-01, rather than prices actually paid. Final amounts are agreed through negotiation and vary with the state, location and orientation of each property.

The table below brings together the towns we track across Castellón (province), listing inhabitants, foreign residents per 100 people and median asking price per square metre, to show how much these markets differ.

In 05/2026, Castellón (province) had an estimated 6,990 tourist homes according to INE's experimental platform-based statistic, equivalent to 37,362 bed places and roughly 11 per 1,000 residents. The level is moderate, though letting a home to tourists still needs a regional licence.

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. The area records about 2,755 hours of sunshine 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.

In the twelve months to 07/2026, 14,098 homes changed hands in the province of Castellón, INE figures show. Such activity tends to bring more reference prices and a larger selection for anyone searching. The figures above cover the whole province of Castellón, but they vary widely from town to town and from property to property. Share what you are searching for and we can review the details with you.

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.

Three things tend to move more slowly in Castellón during the summer months. First, the bank valuation: valuers covering Castellón have more properties to visit and fewer available slots, so a report that might normally take a couple of weeks can take noticeably longer. Second, appointments with the bank itself, since branch staff are stretched and some decision-makers are away. Third, notary availability, as popular notary offices in holiday areas fill their August diary well in advance.

For a buyer living in the United Kingdom, there is a fourth layer: gathering and translating your own documents. Recent P60s and payslips, your last filed Self Assessment return, bank statements from the last few months, evidence of any existing loans, and a valid passport all need to be ready, and sworn translation of UK paperwork is itself a service with its own waiting list that gets busier in summer alongside everything else.

It helps to think of the summer purchase timeline in Castellón as having checkpoints rather than a single countdown. The study of your file and the bank's initial feedback can often happen at any time of year with little seasonal effect, since it is largely paperwork. It is the on-the-ground steps — the physical valuation visit, the in-person signing at the notary, sometimes even opening the bank account in person — that are tied to local capacity in Castellón and therefore to the calendar.

Currency timing adds another variable. Because the United Kingdom uses the pound sterling rather than the euro, the funds you send for the deposit, purchase costs or mortgage-related payments are subject to exchange-rate movements between the day you decide and the day you actually transfer. A longer, more congested summer process simply means more days during which that rate can move, so building in a buffer for currency conversion costs is sensible alongside the time buffer.

As the United Kingdom is no longer an EU member state, you can stay in Spain for up to 90 days in any 180-day period without a visa, which usually gives enough room to view properties, sign a private purchase contract and return later for completion. If your plans involve staying longer, for example to oversee renovation work, you would need a visa or residence permit, and the Golden Visa route for property investors is no longer an option, since it ended on 3 April 2025.

A practical approach for Castellón in summer is to split the process into two trips: one earlier in the season to view, offer and start the mortgage study, and a second once the bank valuation and notary date are confirmed, ideally outside the busiest August weeks if your schedule allows it.

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.