iBAi by Paulo Airaudo

A Basement Room With a Long Memory

San Sebastián's dining rooms come in many registers, from the glassed-in aeries above the bay to the narrow ground-floor bars where a single pintxo and a txakoli constitute a complete meal. iBAi by Paulo Airaudo occupies a third register: a basement space beneath a city-centre building on Getaria Kalea, where the architecture does quiet, considered work on anyone who descends the stairs. Six tables fill the room, each paired with its own enclosed cupboard-alcove arrangement that gives each party a degree of acoustic and visual separation unusual in a dining room of this size. The spatial logic is deliberate. In a city where communal noise is part of the culture, the format here gestures toward something more contained — closer to the intimacy of a private dining club than a conventional restaurant floor.

The building's history adds another layer. This address operated as a well-regarded local restaurant for more than forty years under chef Alicio Garro before closing. That closure would have erased one of the older continuous dining records in a city that, for all its Michelin density, loses addresses with surprising regularity. The reopening under Paulo Airaudo preserved the bar at the entrance — which still operates as a tapas-and-wine counter , while introducing the basement format below. Two distinct formats coexist in the same building: the informal pintxos bar upstairs and the tasting-menu room below, each with its own logic and its own clientele.

Where iBAi Sits in the San Sebastián Price Tier

San Sebastián's €€€€ tier is crowded with serious credentials. Arzak and Akelaŕe operate at three Michelin stars in that bracket. Amelia by Paulo Airaudo , the chef's other San Sebastián address , holds two. iBAi, with one Michelin star awarded in 2024 and recognition in the Opinionated About Dining Casual Europe list for 2025, positions itself at a different point in that tier: the entry into serious tasting-menu dining in the city, without the ceremonial weight of a three-star room. Kokotxa, also one-starred and also working in Basque and modern cuisine at the €€€€ price point, is the most natural peer comparison. Both operate in a niche between traditional Basque restaurants like Agorregi and the city's highest-decorated rooms.

What distinguishes iBAi within that peer set is the OAD Casual recognition alongside the Michelin star , a combination that signals the room is not trying to perform fine-dining formality. The basement alcove format reinforces that reading. This is a tasting-menu restaurant that has made a deliberate choice to feel smaller, quieter, and less hierarchical than its star count might suggest.

The Cuisine: Classical Basque with a Market Orientation

Basque cuisine in San Sebastián has splintered into several sub-traditions. There are the avant-garde rooms that treat the region's larder as raw material for technical experimentation. There are the traditional asadors where whole fish arrives on the grill with minimal intervention. And there is a middle territory , restaurants that take the canonical preparations of Basque cooking and work through them with precision and sourcing discipline, without either radical innovation or nostalgic pastiche. iBAi operates in that middle territory.

Two tasting menus structure the experience, with flexibility built in through additional appetisers and starters. The culinary orientation is clearly stated: the aim is to showcase time-honoured Basque preparations through careful sourcing and execution. The grilled Carabinero prawn , a crustacean whose deep-red colouring and intensity of flavour make it among the most recognisable luxury ingredients in Spanish cooking , appears as a focal point. The treatment of hake cheek kokotxas across five preparations (two battered, two grilled, one confit) is the more structurally interesting dish: a single cut of a single fish rendered in five distinct techniques, which is as much a lesson in Basque culinary vocabulary as it is a tasting exercise. Kokotxas are a specifically Basque obsession , the gelatinous collar of the hake, traditionally associated with pil-pil sauce, here given a breadth of treatment that functions almost as a manifesto about the ingredient's range.

Paulo Airaudo's presence as the architect of this vision connects iBAi to a broader conversation about what Basque chefs with international training bring back to the city's established repertoire. The classical framework is intact; the framing is contemporary. Across Spain's broader fine dining scene , from Aponiente in El Puerto de Santa María to Azurmendi in Larrabetzu and El Celler de Can Roca in Girona , the tension between local tradition and international technique has produced some of the country's most discussed restaurants. iBAi operates within that tension at a more intimate scale than any of those addresses.

The Physical Container: Six Tables and What They Mean

The editorial angle most relevant to this room is the architecture of restraint. Six tables , each with its own cupboard-alcove feature , is a format with real consequences for the dining experience. A room of that size can be managed with unusual attention to pacing and service consistency. Every table represents a meaningful share of the night's total covers, which changes the economic and operational logic compared with a fifty-seat restaurant running the same tasting menu format.

Spatially, the basement location does work that above-ground rooms cannot. Street noise does not reach the room. Natural light is absent, which means the atmosphere is entirely constructed through artificial lighting and the acoustic envelope of the room itself. In cities with active street life at dinner hours, basement rooms often feel like a different city entirely , more interior, more focused on what is happening at the table. San Sebastián's old town, where Getaria Kalea sits, operates at high ambient volume during the evening; the descent into iBAi's room is a meaningful shift in register.

The cupboard feature alongside each table is the design detail that most defines the room's personality. It is unusual enough in European fine dining to function as a genuine spatial signature, giving each table its own small territory within the room without requiring physical separation by walls. The overall effect is a dining room that feels both communal and private simultaneously , a spatial problem that most restaurants do not attempt to solve at all.

For those comparing the physical experience of dining here against Airaudo's other address, Amelia operates at a higher star count and presumably with a correspondingly different formal weight. iBAi's basement room is the more idiosyncratic space. Within Spain's broader range of exceptional tasting-menu rooms , DiverXO in Madrid, Cocina Hermanos Torres in Barcelona, Martin Berasategui in Lasarte-Oria , iBAi represents the smallest and most architecturally defined format.

The Pintxos Bar: A Separate Access Point

The entrance bar, which serves tapas made on the spot, functions as a separate proposition from the basement dining room. This dual-format structure is not unusual in San Sebastián's older restaurant buildings, where a ground-floor bar and a dining room behind or below it represent two different income streams and two different types of guest. The retention of the bar in the iBAi reopening was a choice to preserve the address's existing street-level identity , the bar is where Alicio Garro's former regulars can still arrive without a booking and eat well. For a visitor approaching the building without a reservation, the bar is a legitimate destination in its own right, not merely a waiting area for the room below.

Other Basque restaurants with a strong regional identity, including Ama Taberna in Tolosa and Aitor Rauleaga in Bilbao, demonstrate that the taberna and the serious dining room can operate in proximity without diluting either. iBAi's format belongs to that tradition.

Planning a Visit

iBAi operates Tuesday through Friday, with hours running from 10 AM to 5 PM across those days; the kitchen is closed on weekends. That schedule makes this a lunch-focused destination by structure , an important detail for visitors building a multi-day San Sebastián itinerary around evening dining at other addresses. The restaurant sits on Getaria Kalea in the centre of San Sebastián's old town, within walking distance of the city's main pintxos bars and close to the waterfront. Booking the basement tasting-menu room in advance is advisable given the six-table capacity; the pintxos bar at the entrance operates on a walk-in basis. For a fuller picture of how iBAi fits within the city's broader dining options, see our full San Sebastián restaurants guide. Planning accommodation alongside your reservation is easier with our San Sebastián hotels guide; for further exploration of the city's food and drink scene, the bars guide, wineries guide, and experiences guide cover the wider context.

Frequently Asked Questions

What's the must-try dish at iBAi by Paulo Airaudo?

The five-preparation hake cheek kokotxas is the dish that most directly articulates what iBAi is doing. Serving the same cut across two battered, two grilled, and one confit preparation within a single course is a structured argument about one of Basque cuisine's most specific ingredients , the gelatinous collar of the hake that defines the pil-pil tradition. It is a dish that rewards anyone already familiar with Basque cooking and teaches those who are not. The grilled Carabinero prawn, cited alongside it in the restaurant's recognition materials, is the higher-profile luxury ingredient; the kokotxas preparation is the more characteristically local one. The one Michelin star awarded in 2024 and the Opinionated About Dining Casual Europe 2025 listing both anchor the kitchen's credibility for those making a booking decision.