Castro Urdiales is a town in eastern Cantabria right on the Basque border, with around thirty-two thousand residents. Above the harbour stand the Gothic church of Santa María and a castle converted into a lighthouse; the Romans founded a settlement here called Flaviobriga.
Today it is a commuter town for Bilbao for many people: thirty-five kilometres by motorway, and some residents drive there to work every day. That sets the prices — higher than inland Cantabria. In summer the town fills with holidaymakers from Biscay and Madrid; in winter it lives on its own people. The climate is Atlantic: rain in every month, a sea cold even in August, but green and never hot.
Worth a trip nearby
- Bilbao · 35 km — the Guggenheim and the airport
- Laredo · 25 km — the long sandy beach to the west
- Santander · 75 km — the Cantabrian capital and its bay
Resalesource
2 715€/m²
+9.5% price growth yoy
appraised valueappraisedValue from licensed appraisers, published by the Ministry of Housing. Not a listing price.Why it matters. It runs systematically below asking prices. Comparing it with another town's asking price flips the comparison., Ministerio de Vivienda
Populationsource
33 392
Foreign residents 10.2%
Winter humidity
78%
damp risk without heating
Sunshine hours per year
1 750h
Castro Urdiales sits in Cantabria, right on the water. Winters are damp at 78% humidity, so ask about mould before you sign. Summers are packed: tourist load hits 5 out of 5 at the peak against 1 in winter. Markedly less sun than the south: 1750 hours a year. This is the north, and winter shows it.
Hospital, terrain, getting around
Nearest hospitalsource
28min by car
Hospital Universitario Cruces
Barakaldo · 32 km · public
Terrainsource
flat
Centre at 10 m, 21 m of elevation change
under 25 m of elevation change within 700 m — pram, bicycle, bad knees all fine
Car-freeour rating
3/5
possible without a car, with caveats
No rail station within 3 km · bus stops within 1.5 km: 10
Where from: the Ministry of Health hospital catalogue, road time · elevations from the Copernicus terrain model · OpenStreetMap · ratingswinter liveabilityOur 1-to-5 rating of whether a town lives from November to March — open places, running transport, people around.Why it matters. Most resorts shut for winter. Tourists never notice; someone who moved gets four empty months. An estimate, not a measurement. for car-free and hospital minutes are ours.
Sea temperature
3 months above 20 °CTourist load
What tenants actually pay
sourced75th percentile75th percentileThe rent that only a quarter of leases exceed. The median is the middle of all leases, old ones included.Why it matters. A new lease is signed closer to this figure than to the median: long-standing tenants pay old rates, a newcomer pays today's.
706€/mo
This is the median rent on active leases — tax records for 2024, a sample of 1 297 leases. It includes long-standing contracts at unchanged rents, so it sits below what is asked today: our estimate of asking rent is 880 € for a two-bedroom.
The point of the 75th percentile: it is closer to what is being signed now than the median. The gap between them shows how much a new tenant overpays relative to long-standing ones.
Where from: SERPAVISERPAVIThe Ministry of Housing's public registry of rents: medians of actual signed leases by municipality.Why it matters. Asking rent and signed rent are different things: across our base listings run about one and a half times above the registry. The registry shows what people actually pay., Ministerio de Vivienda · municipality: Castro-Urdiales
Rent by number of bedrooms
asking price, estimate| 1 bedroom | 680 €/mo | |
| 2 bedrooms | 880 €/mo | |
| 3 bedrooms | ≈ 1 140 €/mo | model: two-bed × 1.3, no measurement yet |
| Median of active leases, 2024 | 608 €/mo | SERPAVISERPAVIThe Ministry of Housing's public registry of rents: medians of actual signed leases by municipality.Why it matters. Asking rent and signed rent are different things: across our base listings run about one and a half times above the registry. The registry shows what people actually pay. · 76 m² |
Asking prices are what long lets are advertised at today; the registry is what tenants pay on signed leases, including old ones. The gap between them is your negotiating argument.
Schools nearby
estimateInternational schools counted in the base: 0. Names and curricula for this place are not verified yet — the school registry covers the thirty most-requested places so far.
2Renting without a Spanish contract
How realistic a long lease is without a nóminanóminaA Spanish employment contract with payslips. Landlords ask for it as proof of income.Why it matters. A newcomer does not have one and will not in the first year. Where it is required, a long lease is nearly impossible — even with money in the bank. — on foreign income, savings or prepayment.
- —Prices rising 9.5% a year — the landlord picks, and the first filter is a nómina
This is our model, not a measurement: demanding a nóminanóminaA Spanish employment contract with payslips. Landlords ask for it as proof of income.Why it matters. A newcomer does not have one and will not in the first year. Where it is required, a long lease is nearly impossible — even with money in the bank. is an individual landlord's practice and nobody publishes it. The rating is derived from the share of foreign residents, the presence of a community with services, price growth, seasonality of the stock and the size of the town.
Who lives here
INEINESpain's National Statistics Institute. It keeps the padrón — the official register of residents of every municipality.Why it matters. The only primary source of population for the whole country. A figure 'per INE' can be checked against a table; a figure 'from the internet' cannot. 2025Foreign residents on the padrónpadrónThe municipal register of residents. Registering in it — empadronamiento — proves you live here.Why it matters. Official population comes from it, and you will need it yourself: without registration there is no health card and no school enrolment.
10.2%
3,403 of 33,392 · Castro-Urdiales
- Colombia690
- Romania635
- Brazil349
- Venezuela278
- Argentina143
- Portugal142
- Italy112
- Morocco100
Communities and services in their language
Where from: INEINESpain's National Statistics Institute. It keeps the padrón — the official register of residents of every municipality.Why it matters. The only primary source of population for the whole country. A figure 'per INE' can be checked against a table; a figure 'from the internet' cannot., Censo Anual de Población · the register-based census counts padrónpadrónThe municipal register of residents. Registering in it — empadronamiento — proves you live here.Why it matters. Official population comes from it, and you will need it yourself: without registration there is no health card and no school enrolment. registrations by citizenship on 1 January, not everyone living here: seasonal owners and the unregistered are outside it, and naturalised residents count as Spanish.
Winter direct flights from BIOBilbao airportIATA code BIO.
January 2026/2730 min to the airport- other countries7
- Italy6
- Germany5
- United Kingdom4
- Switzerland3
- Poland3
- Portugal2
- Ireland1
- Netherlands1
- Belgium1
- France1
- Czechia1
Destinations served at least weekly in January; checked 2026-09-17.
Paperwork and practicalities
Appointment for the TIETIETarjeta de Identidad de Extranjero — the plastic residence card with your NIE and the permit's expiry. Issued at the police after entering on a visa or after a permit is approved.Why it matters. Without the card you cannot open a resident bank account, sign a long lease or prove your status at the border. The police appointment (cita) is a weeks-long bottleneck in some provinces.· Cantabriafrom reports
4One queue for the whole province, at the Santander police station. One to two weeks of waiting and booking is not hard. There is little evidence and no reports of a shortage. Treat this as a rough estimate.
1 — no slots for weeks, 5 — freely available. Checked 2026-09-17
Coworking within 3 km
not on the map
Dog beaches within 8 km
not on the map
From OpenStreetMap — an open map filled in by volunteers. Something missing there may still exist: read this as «we found this many», not «there are no more».
Where to look next
Cheaper with the same sea
