Hotel SB Diagonal Zero 4 Sup belongs to SB Hotels, a Spanish group that describes itself as "more than a hotel chain, a family of hotels" and runs several properties in and around Barcelona, alongside hotels in Tarragona, Terres de l'Ebre and Madrid. Of the group's Barcelona addresses, Diagonal Zero is the one positioned where, in the brand's own words, the city and the sea of Barcelona meet. Traveloka's listing records the building's year of construction as 2009, and the hotel stands a short walk from the Fòrum waterfront and the Barcelona International Convention Centre (CCIB).
The hotel occupies a 17-storey building at Plaça de Llevant, on the corner of Rambla Prim, in the Sant Martí district (postcode 08019). With 262 guest rooms, it is a sizeable property rather than a boutique stay, and it carries a 4.5-star classification on Traveloka; the "4 Sup" in its name reflects that upper-four-star positioning. The property's own site highlights three things above all else: a panoramic swimming pool, the Spazio Wellness centre of more than 700 square metres, and a set of eight meeting rooms that make it a natural base for delegates attending events at the CCIB, which the hotel says is about a seven-minute walk away.
That combination gives the hotel a dual personality. On weekdays it works as a conference and business hotel at the eastern end of Avinguda Diagonal; at weekends and in summer it suits leisure travellers who want a pool, a spa and easy access to the beaches of Llevant and Nova Mar Bella without staying in the busier old-town districts. Travellers from Singapore planning a longer Spanish itinerary often value exactly this mix: a calm, modern base to unwind in after a long-haul flight, with straightforward links into the city centre for sightseeing.
The official SB Hotels website lists six room categories for Diagonal Zero. They are presented below from the entry-level option upwards. Traveloka's own room feed does not publish per-category sizes or bed layouts, so check the room list on the booking page for the exact configuration, occupancy limits and photos before you confirm.
The Double Room (Habitación Doble) is the hotel's base category and the natural choice for couples or solo travellers. Per Traveloka's listing, guest rooms at the property feature a minibar, a Smart TV with satellite channels, a phone, a desk and an in-room safe, with wired and wireless internet access included.
One step up, the Superior Double Room with Sea View (Habitación Doble Superior Vistas Mar) adds outlooks towards the Mediterranean, which is the main reason to choose it. Because the hotel is a tall building close to the Fòrum waterfront, this is the category to pick if the view matters to you; specific floors cannot be guaranteed.
The Triple Room (Habitación Triple) accommodates three guests. The Traveloka listing states that no rollaway or extra beds are available at the property, so groups of three should book this category rather than plan to add a bed to a double.
The Family Room (Habitación Familiar) is described on the official site as two connected double rooms. It is the most practical option for families travelling with children who want their own space while staying right next door to their parents.
At the top of the range, the official site lists a Jacuzzi Suite and a Suite with a hydromassage bathtub (Suite Bañera Hidromasaje). These are the categories for honeymooners, special occasions or anyone who wants extra space and a long soak after a flight from Asia.
Across categories, the Traveloka listing notes private bathrooms with either a bathtub or a shower, rainfall showerheads and toiletries provided. In-room features can vary by room, so treat the details above as typical rather than guaranteed for every unit.
For a city hotel, the facility list at Hotel SB Diagonal Zero 4 Sup is unusually broad, and the wellness and recreation offer is where it stands out. The pool is described by the hotel as a panoramic pool, and Traveloka lists it as an outdoor pool alongside a poolside bar, a terrace and a garden area.
Two practical notes from the listing are worth knowing in advance. First, reservations are required for massages and spa treatments, so book these before arrival using the contact details on your confirmation. Second, the listing mentions a daily facilities fee covering spa use, payable at the property; check the current terms on the booking page, as fees are set by the hotel and can change.
Hotel SB Diagonal Zero 4 Sup sits at the eastern tip of Avinguda Diagonal, one of Barcelona's great avenues, in the Diagonal Mar and Fòrum area of Sant Martí. This is a modern, planned part of the city with wide boulevards, parks and seafront promenades, quite different in feel from the Gothic Quarter. Traveloka's listing gives the following approximate distances:
The hotel's own site puts the beach at roughly a 13-minute walk and Passeig de Gràcia at about 5 km, while Traveloka notes that Sagrada Família and the Palau de la Música Catalana are both within a 10-minute drive. Barcelona El Prat Airport (BCN) is the nearest major airport, roughly 19 to 22 km away depending on the route. To plan your arrival, compare flights to Barcelona on Traveloka; many travellers from Singapore reach Barcelona with a connection through a European or Middle Eastern hub.
Drivers should note one important rule highlighted in the listing: the hotel lies inside Barcelona's Low Emission Zone, where only low-emission vehicles may enter, and cars with non-Spanish licence plates must be registered with the city in advance. If you plan to hire a car for a Catalonia road trip, sort out this registration before you arrive.
The hotel's main restaurant is Echo Restaurant, which the official site describes as serving Mediterranean cuisine built on seasonal and locally sourced produce, with both an indoor dining room and a terrace. Traveloka's listing refers to it as Echo Healthy Restaurant, reflecting its lighter, health-conscious angle.
For more choice, Diagonal Mar Shopping Mall about 0.3 km away has a range of casual restaurants and cafés, while Rambla del Poblenou, around 2 km west, is a pleasant pedestrian street lined with terraces and neighbourhood eateries. Further along the seafront, Port Olímpic is known for its waterfront restaurants. If you would like to pair your stay with tours or food experiences, browse things to do in Barcelona on Traveloka.
The strongest case for Hotel SB Diagonal Zero 4 Sup is balance. You get resort-style facilities, including a panoramic pool and a large wellness centre, in a hotel that is also a short walk from one of Barcelona's main convention venues. Business travellers attending congresses at the CCIB can skip daily cross-city commutes, while leisure guests can spend mornings on the beach and afternoons in the thermal circuit.
The trade-off is distance from the historic centre: you will travel a few kilometres to reach Las Ramblas or the Gothic Quarter. For travellers who prefer quieter evenings and a pool, that is a fair exchange. If you would rather stay closer to the old town, you can compare other hotels in Barcelona before deciding.
Booking through Traveloka lets you see room options side by side and manage your reservation in one app. When the rest of your itinerary is ready, you can plan the whole trip from the Traveloka homepage.
Popular Facilities | |
Check-In / Check-Out Time | From 15:00 - 04:00 - to 12:00 |
Breakfast Availability | Yes, hotel has room that provide breakfast |
Available rooms at Hotel SB Diagonal Zero 4 Sup | 262 |
Number of floors in Hotel SB Diagonal Zero 4 Sup | 17 |
Another facilities in Hotel SB Diagonal Zero 4 Sup | Limited parking, Bicycle rental, Area shuttle with surcharge, Poolside bar, Breakfast |
