San Sebastián STR Rules

San Sebastián (Donostia) has among Spain's strictest STR rules. The Basque government and city council have banned new tourist apartment licenses in residential areas to combat housing pressure, with extremely limited exceptions.

San Sebastián STR Market Overview

San Sebastián (Donostia) sits at the epicenter of Spain's most aggressive short-term rental crackdown. The Basque Country's regional government, in coordination with the Donostia-San Sebastián city council, has effectively banned new tourist apartment licenses in residential zones, making STR regulations San Sebastián some of the most restrictive in all of Europe. The city's dramatic coastline, world-renowned pintxos culture, and status as a top gastronomic destination have fueled relentless tourism demand — but that same pressure has created a severe housing affordability crisis for local residents.

Regulatory History and Recent Changes

The regulatory tightening accelerated after 2023 when Basque housing authorities formally declared tourist apartments a primary driver of residential displacement. The city council followed with emergency zoning measures that froze new tourist apartment permits in virtually all residential classifications. Existing license holders were grandfathered in under strict conditions, but transfers, renewals under new ownership, and new applications face near-impossible approval standards. The Basque Housing Law of 2023 gave municipalities explicit authority to cap or eliminate STR licenses — and San Sebastián moved swiftly to exercise that power.

For real estate investors evaluating San Sebastián Airbnb laws, the practical reality is stark: purchasing a residential property with the intent to operate a short-term rental is, as of 2025, essentially off the table through legal channels. The few remaining licensed units represent legacy assets commanding significant premiums, and even those face ongoing regulatory scrutiny. Investors must conduct exhaustive due diligence before committing capital to this market.

A is required to legally operate a short-term rental in San Sebastián. The annual cost is $.

San Sebastián Short-Term Rental Permit Process

Obtaining a San Sebastián short-term rental permit under current regulations is extraordinarily difficult. The following steps reflect the official process, though applicants should understand that new residential zone applications are currently frozen.

1. Confirm Zoning Eligibility (2–4 weeks): Contact the Donostia-San Sebastián Urbanismo department to verify whether your specific property parcel is zoned for tourist apartment use. As of 2025, nearly all residential classifications have been excluded. Only certain mixed-use or commercial-ground-floor designations may still qualify.
2. Pre-Application Consultation: Schedule a mandatory pre-application meeting with the Servicio de Actividades Económicas. Bring the property deed (escritura), catastral reference, and floor plans. This consultation will formally confirm eligibility before you invest in additional documentation.
3. Assemble Required Documents: Submit the following — DNI/NIE of the applicant or legal entity, certificate of occupancy (cédula de habitabilidad), technical habitability report by a licensed architect, proof of property insurance covering tourist use, and declaration of responsible operation (declaración responsable).
4. Submit Application and Pay Fees: File through the Donostia city council's official portal or in person at the Oficina de Atención Ciudadana. Application fees typically range from €300–€600 depending on property size.
5. Basque Tourism Registry: If approved at the municipal level, register with the Registro de Empresas y Actividades Turísticas del País Vasco and obtain your official tourist apartment number, which must be displayed in all listings.
6. Annual Renewal: Licenses require annual renewal with updated insurance certificates and compliance declarations. Renewal fees are approximately €150–€300. Note: any change in ownership triggers a full re-application, not a simple transfer.

Pro Tip: Engage a local gestor or abogado specializing in Basque tourism law before spending any money. The probability of new license approval is extremely low, and professional guidance will save significant time and legal fees.

San Sebastián currently has minimal active STR enforcement. However, regulations can change — always maintain compliance.

San Sebastián's enforcement of STR regulations is among the most rigorous in Spain. The city deploys a dedicated inspection unit within the Servicio de Disciplina Urbanística that actively monitors short-term rental platforms including Airbnb and VRBO. Algorithms and manual searches are used to identify listings operating without valid tourist apartment license numbers — a requirement under Basque law for any property advertised for tourist use.

Fines for unlicensed operation are severe. Under the Basque Tourism Law, infractions can range from €3,000 for minor violations up to €90,000 for serious or repeated offenses. Operating without a license, misrepresenting a property's legal status, or exceeding occupancy limits all constitute serious infractions. The city has demonstrated willingness to pursue maximum penalties against investor-owned properties, particularly those flagged through resident complaints.

Neighbor reporting is a significant enforcement mechanism. San Sebastián residents, acutely aware of housing pressures, actively report suspected illegal STRs to the city's dedicated complaint channels. The city council has publicized these reporting tools, creating a community surveillance environment that makes covert operation extremely risky. Building communities (comunidades de propietarios) have also been empowered to formally object to tourist apartment activity, adding another enforcement layer.

Platform cooperation has increased substantially following Spanish national directives requiring Airbnb and VRBO to share host data with tax and regulatory authorities. Listings without valid license numbers are subject to forced removal. Investors attempting to operate under the radar should understand that detection risk is high and penalties are financially devastating relative to potential short-term rental income in this market.

Why Investors Target — and Increasingly Avoid — San Sebastián

San Sebastián has long been one of Spain's most compelling STR markets on paper. Average daily rates for legal tourist apartments historically exceeded €200–€350 per night during peak Semana Grande and gastronomic festival periods, with annual occupancy rates among licensed operators reaching 75–85%. These fundamentals attract investor attention. However, the regulatory shutdown has bifurcated the market: existing licensed units trade at a 20–35% premium over comparable unlicensed residential properties, reflecting the embedded license value. New investors without a licensed asset to acquire must accept that legitimate STR operation is currently foreclosed, fundamentally altering the investment thesis.

Tax Obligations for STR Operators

Investors operating legally in San Sebastián face a layered tax environment. At the national level, rental income is subject to Spanish IRPF (income tax) or Impuesto de Sociedades for corporate entities. The Basque Country operates under a special fiscal regime (Concierto Económico), meaning regional tax rates and rules differ from the rest of Spain — Basque tax authorities (Hacienda Foral) collect and administer taxes locally. Additionally, tourist apartments are subject to IVA (VAT) at 10% on rental income when services beyond mere accommodation are provided. Local occupancy taxes (tasas turísticas) are under active discussion at the Basque level, with potential implementation anticipated by 2026.

HOA and Community Considerations

Under Spanish horizontal property law (Ley de Propiedad Horizontal), as amended in 2019, communities of owners can vote to prohibit or restrict tourist apartment activity with a three-fifths supermajority. In San Sebastián, given strong resident sentiment against STRs, many urban residential communities have already passed such prohibitions. Any investor acquiring a unit in a multi-family building must obtain and review the community statutes and recent meeting minutes before purchase — a restriction at the community level is legally binding regardless of municipal permit status.

Nearby Investment Alternatives

Investors priced out of San Sebastián's legal STR market should evaluate nearby Basque and Navarrese markets. Zarautz and Zarautz (25 km west) and Hondarribia near the French border offer surf and border tourism demand with somewhat less restrictive municipal frameworks, though Basque-wide trends suggest tightening is coming regionally. Across the border, Biarritz and Bayonne in France offer different regulatory environments for investors comfortable with cross-border complexity. Further inland, Pamplona sees massive demand spikes during San Fermín but carries its own emerging restrictions.

• Never buy without a confirmed existing license: Purchasing a residential property in San Sebastián with plans to obtain a new STR permit is not a viable strategy as of 2025. Only acquire properties where a valid, transferable tourist apartment license is explicitly part of the transaction — and verify transferability with the city before closing.
• License verification is non-negotiable: Demand the official Basque Tourism Registry number and cross-reference it against the Registro de Empresas y Actividades Turísticas del País Vasco database. Sellers have misrepresented license status in past transactions; independent legal verification is essential on a €200,000+ purchase.
• Budget €5,000–€15,000 for legal and gestoria fees: Navigating Basque-specific property law, the Concierto Económico tax regime, and STR compliance requires specialized local counsel. This is not a market for general Spanish property lawyers unfamiliar with Basque foral law.
• Factor the license premium into your cap rate analysis: Licensed STR units in San Sebastián trade at a 20–35% premium. Model your returns on actual purchase price including that premium — a €320,000 licensed apartment that would be worth €240,000 without the license requires very strong nightly rates to pencil as a pure STR play.
• Assess community statutes before any offer: Request the comunidad de propietarios statutes, the last three years of meeting minutes, and any pending votes on STR restrictions. A community prohibition discovered post-closing can legally void your entire operating model with no recourse against the seller if not properly disclosed.
• Understand Basque tax obligations from day one: Income from Basque-sited properties is administered by Hacienda Foral, not AEAT. Engage a Basque-licensed tax advisor (asesor fiscal) to structure ownership correctly — corporate vs. personal — before purchase, as restructuring post-acquisition is costly.
• Monitor the regional legislative pipeline: The Basque government has signaled potential extension of STR bans to smaller municipalities and possible introduction of a tourist tax by 2026. Build regulatory risk scenarios into your underwriting, including a case where the property reverts entirely to long-term residential use.
• Consider a long-term rental arbitrage strategy instead: Given STR restrictions, some investors are pivoting to premium furnished mid-term rentals (3–11 months) targeting relocating tech workers, Michelin-circuit restaurant staff, and film production crews — a segment that falls outside tourist apartment regulations while still generating above-market rents in this high-demand city.