Reviews of Hotel SB Diagonal Zero 4 Sup 4 stars
Plaça de Llevant, s/n, Sant Martí, 08019 Barcelona, Spain

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Reviewed: 1 September 2025 · Stayed in August 2025
Verified reviewLocation
Room smelt like smoke when entering. There were bloodspots on the curtains and roller blind in the bathroom... not nice when you stay with a kid...
Reviewed: 1 September 2025 · Stayed in August 2025
Verified reviewReviewed: 31 August 2025 · Stayed in August 2025
Verified reviewLiked the hotel, the rooftop pool and the surroundings. The room was spacious and had everything we needed.
Shame the indoor pool is not free for the persons staying at the hotel and shame it wasn’t specified before booking…
Reviewed: 30 August 2025 · Stayed in August 2025
Verified reviewFriendly staff, great location. Spa and amenities were nice also. Room was cleaned often and well. Nice breakfast and assorted fruit. Loved the pillow guide. Love how walkable the area is and close to mall!
Breakfast maybe could have had different options interchanging. The pillow guide was nice but they are all huge and the bed options should have a queen or bigger as it was difficult to sleep as a couple and also hold the large pillow.
Reviewed: 30 August 2025 · Stayed in August 2025
Verified reviewit was clean
The staff ignored the "do not disturb" sign and the room did not meet expectations as we paid 1130 euros for 4 nights and expected a better room for that price
Reviewed: 29 August 2025 · Stayed in August 2025
Verified reviewGreat location to explore Barcelona and go to the beach. Restaurants nearby and rooftop pool with a view. Really lovely staff who were so kind in helping us celebrate occasions with Cava, cake and sweets for children’s bday too. The breakfast was delicious too.
One of our rooms was an older style with a bathtub but still perfectly comfortable and clean. The hotel decor is a little dark and full of wood. But this was not a problem at all!
Reviewed: 29 August 2025 · Stayed in August 2025
Verified reviewReviewed: 28 August 2025 · Stayed in August 2025
Verified reviewExcellent spread at breakfast. Quiet room.
Aircon was leaking on the last day. Swimming pool was located in a windy place.
Reviewed: 28 August 2025 · Stayed in August 2025
Verified reviewClean, location is away from city and so less busy
The key cards kept failing. The shower temperature is erratic
Reviewed: 28 August 2025 · Stayed in August 2025
Verified reviewbed location
there was no hot water all day one day - no remediation was offered people came in at 4am and made huge amounts of noise that was clearly audible as though they were standing next to me so the soundproofing was insufficient when I selected the rate, I deliberately selected including breakfast as this is a requirement of my employer, but the hotel said no breakfast was included and charged me 20 euros which i now can't reclaim
Reviewed: 28 August 2025 · Stayed in June 2025
Verified reviewBreakfast was fantastic. We stayed for Primavera so location was unbeatable, easy to metro into the city centre.
Reviewed: 28 August 2025 · Stayed in August 2025
Verified reviewThe rooftop bar and pool are ideal after a long day of travelling; the rooms are tidy, and the air conditioning is easy to use. Lifts are super fast, too. Bar Staff were friendly too.
The amount of personal data that is taken at check-in is a little excessive and is clearly sold in my view as i started to get all sorts of spam. I booked with Booking.com and would expect that to be enough information, a little over the top compared to other hotels in Spain. The air conditioning could use a service, as it's not as cold as that of other hotels in the area.
Reviewed: 28 August 2025 · Stayed in August 2025
Verified reviewIt's close to the conference center.
The staff are too stiff I had to wait FIVE hours to get my room - I realize that check-in time is 4 pm, but the staff did not even try to expedite the process and I had to remind the receptionist multiple times until he finally realized that a room was actually available! Security is a major problem. One lady's necklace was snatched off of her neck by a thief right in the hotel parking!! This is unacceptable! No amenities in the room to make my own food.
Reviewed: 28 August 2025 · Stayed in August 2025
Verified reviewReviewed: 27 August 2025 · Stayed in August 2025
Verified reviewReviewed: 27 August 2025 · Stayed in August 2025
Verified reviewFabulous breakfast
It was fab all round.
Reviewed: 27 August 2025 · Stayed in August 2025
Verified reviewThe gym was very good
Bathroom door not closing. Not being repaired after asking twice. A/C leaking in the room. Happened twice and causing rotting smell of wood.
Reviewed: 25 August 2025 · Stayed in August 2025
Verified reviewCleanliness
- Something was wrong with 2 elevators, we had to wait a lot in a line of 10 -12 people before getting in. And that problem continued, especially after breakfasts. - The stuff had no habit of knocking the door before coming into our room. They just opened the door and came in without asking when we were inside. - The managers on the administration didn't check the information of our payment for the breakfast and accused rudely of unpayment. They didn't apologize later. - The electronic device of the air conditioning was broken, and after we informed the administration while checking in, it was still hanging out of the wall for two days. - The breakfast room was organized uncomfortably. A lot of people in the middle of the room and you cant cross the room easily. You have to scrool between the tighy located tables. To go for food you do not have enough place to move in. To take food you need to search in the whole room and collude other clients.The lids of the pots are inconvenient to open, they are scattered all over the table that's why the food was cold. - And totally it was unpolite rude inhospitable behavior and attitude of the administration toward clients. Very unpleasant emotional experience.
Reviewed: 22 August 2025 · Stayed in July 2025
Verified reviewReviewed: 21 August 2025 · Stayed in August 2025
Verified reviewLocation
Staff are rude. Not helpful, worst front desk staff i met . they are super slow checking in rooms. Disappointed this time from bad service, especially the front desk staff, who is asking me to enter the locker room to get my laugage without even offering to bring it out as courtesy. Rooms are outdated, and very, very old furniture smells bad from ageing. Air-conditioning is a week, specifically nowadays, hot weather. Old and un functional elevators, the card readers couldn't read rooms card. Hope management will consider its time to renovate the entire hotel and the staff of the front desk.
Reviewed: 19 August 2025 · Stayed in August 2025
Verified reviewReviewed: 18 August 2025 · Stayed in August 2025
Verified reviewReviewed: 18 August 2025 · Stayed in August 2025
Verified reviewGood selection of food at breakfast including very nice fruit. Hotel room was spacious and clean and decor looked reasonably fresh. Didn't use the gym but appeared to be very well equiped.
Selection of cereals wasn't great, in particular lacked muesli / granola. disliked the glass window between bedroom and bathroom, even with blind pulled down light shone between the two rooms. All light switches were clearly labelled unfortunately one light was controlled solely by the Air Conditioning controller , very odd and we needed to go to reception to find out how to turn the light out. Could have done with a few more loungers by the pool.
Dear Guest, Thank you for your valuable feedback. We're glad you enjoyed our breakfast, the spaciousness of your room, and our gym. We apologize for the issues you experienced with the limited cereal selection, the bathroom window, and the confusing light switch. We've noted your comments and will use them to make improvements. We will also consider adding more sun loungers by the pool. We hope to welcome you back again for a more comfortable stay. Sincerely, Assistant Front Office Manager
Dear Guest, Thank you for your valuable feedback. We're glad you enjoyed our breakfast, the spaciousness of your room, and our gym. We apologize for the issues you experienced with the limited cereal selection, the bathroom window, an… Show more
Reviewed: 18 August 2025 · Stayed in August 2025
Verified reviewUnas vistas bellas al mar
Reviewed: 18 August 2025 · Stayed in August 2025
Verified review