AC Hotel Diagonal L'Illa by Marriott
Location: Avenida Diagonal, 555, Barcelona, es
Star Rating: 4 Stars
Property Type: Hotels
About this Property
Luxurious Accommodation
AC Hotel Diagonal L´Illa in Barcelona offers plush bedding, flat-screen TVs, and spacious work desks in every room. The private bathrooms come with showers and free toiletries.
Dining and Entertainment
Guests can enjoy on-site restaurants and the modern Suite Bar on the hotel's second floor. The bar's contemporary décor and lighting create a welcoming atmosphere to unwind and enjoy a drink.
Convenient Amenities
With free WiFi throughout the hotel and a 24-hour front desk, guests can stay connected and have their needs met at all times. The property's location near upscale boutiques and restaurants, surrounded by lush gardens, offers a serene escape in the bustling city.
Book now to experience luxury and convenience at AC Hotel Diagonal L´Illa in Barcelona.
Policies
Check-in: 03:00 PM - 12:00 AM
Check-out: 12:00 PM
Amenities & Facilities
- Electric bicycle charging station
- Fitness facilities (surcharge)
- Non-smoking rooms
- Air conditioning
- Room service
- Terrace
- Family rooms
- Lift / Elevator
- Luggage storage
- Express check-in/check-out
- Fax/photocopying
- Tour desk
- Facilities for disabled guests
- Ironing service
- Non-smoking throughout
- Shared lounge/TV area
- Staff adhere to local safety protocols
- Guest rooms disinfected between stays
- Cleaning standards that are effective against Coronavirus
- Physical distancing rules followed
- Hand sanitizer in guest room and key areas
- Sanitized tableware & silverware
- Guests can opt-out any cleaning services during stay
- Shared stationery like menus, pens are removed
- Physical distancing in dining areas
- Food delivered to guest room
- Delivered food - securely covered
- Front desk (limited hours)
- Express check-in
- Free wired internet
- Snack bar/deli
- Fitness facilities (surcharge)
- Internet access
- Housekeeping on request
- Wine release events
- Reception hall
- Bicycle-friendly property
- Electric bicycle charging station
Rooms Available
-
Single Room, Guest room, 1 Twin/Single Bed(s)
The double room offers air conditioning. The unit offers 1 bed.
Max Occupancy: 1 (1 Adults)
-
Standard Queen, Guest room, 1 Queen
The double room features air conditioning. The unit has 1 bed.
Max Occupancy: 2 (2 Adults)
- Air conditioning
- Trash cans
-
Family Room
This spacious room has a flat-screen TV, a mini-bar and a Nespresso Coffee Machine.
Max Occupancy: 4 (4 Adults)
- Coffee/tea maker
- Minibar
- Shower
- Safety deposit box
- TV
- Telephone
- Air conditioning
- Hair dryer
- Radio
- Desk
- Toilet
- Private bathroom
- Heating
- Slippers
- Sofa
- Hardwood or parquet floors
- Electric kettle
- Wardrobe or closet
- Coffee machine
- Sofa bed
- Bottle of water
- Trash cans
- Shampoo
- Conditioner
- Body soap
-
Standard King Room
This spacious room has a flat-screen TV, a mini-bar and a Nespresso Coffee Machine.
Max Occupancy: 2 (2 Adults)
- Minibar
- Shower
- Safety deposit box
- TV
- Telephone
- Air conditioning
- Hair dryer
- Radio
- Desk
- Toilet
- Private bathroom
- Heating
- Hardwood or parquet floors
- Wardrobe or closet
- Coffee machine
- Bottle of water
- Shampoo
- Conditioner
- Body soap
-
Superior Twin Room
This more spacious room features a lounge with a sofa and a Nespresso Coffee Machine.
Max Occupancy: 2 (2 Adults)
- Coffee/tea maker
- Minibar
- Shower
- Safety deposit box
- TV
- Telephone
- Air conditioning
- Hair dryer
- Radio
- Desk
- Toilet
- Private bathroom
- Heating
- Slippers
- Sofa
- Hardwood or parquet floors
- Electric kettle
- Wardrobe or closet
- Coffee machine
- Sofa bed
- Bottle of water
- Trash cans
- Shampoo
- Conditioner
- Body soap
-
Superior King Room
The spacious double room features air conditioning, soundproof walls, as well as a private bathroom boasting a bath and a shower. The unit has 1 bed.
Max Occupancy: 2 (2 Adults)
- Shower
- Safety deposit box
- Telephone
- Air conditioning
- Hair dryer
- Radio
- Desk
- Toilet
- Private bathroom
- Heating
- Sofa
- Hardwood or parquet floors
- Wardrobe or closet
- Coffee machine
- Sofa bed
- Bottle of water
- Trash cans
- Shampoo
- Conditioner
- Body soap
-
Standard Accessible Twin, Guest room, 2 Twin/Single Bed(s)
The double room features air conditioning. The unit has 2 beds.
Max Occupancy: 2 (2 Adults)
Guest Reviews
- Tolo (10/5): - Excelente
- Manuel (9/5): -
- Jorge (9/5): -
- Gumilang (9/5): -
- Fani (10/5): -
- Amaia (10/5): Nos dejaron entrar antes de la hora y además nos pusieron en una habitación mejor - La amplitud de la habitación, moderno y nueva,el buffet muy variado y el personal muy agradable Nada
- JORGE ERNESTO (9/5): Traumático - El cuarto muy bonito e iluminado Se me perdió una candonga en el cuarto y no dieron respuesta, las toallas viejas y no la cambian, el personal de recepción no escucha al cliente con atención, aún no me ha llegado la devolución de los euros que bloquean de la tarjeta por la instancia en la ciudad.
- Catharina (8/5): -
- Arlinda (10/5): I loved my stay here I would love to come back again. The location is a wonderful place and loved the park outside the h - I liked the design of the room, clean and neat. I loved the bed it was really comfortable. All the facilities were included.
- Eudald (1/5): - S'havien venut les habitacions reservades, i ens vam trobar al carrer.
- LUIS FERNANDO (10/5): -
- Stefanie (10/5): - The location was awesome, clean, friendly staff. Comfy beds, and I'm picky with those
- Ceyda (8/5): It is undoubtedly the optimal decision to stay if you wish to be situated in the Diagonal region. - Venue, personnel, spaciousness, and coziness.
- Francisco (8/5): -
- Niloofar (9/5): - clean the lobby area doesn’t have any seating , just for 2 person and it’s not enough!
my friends standing for a while the time for waiting
- Ceyda (8/5): -
- Sonia (10/5): -
- 9a66d8a311097244d7b68d8b4ead6a9a (8/5): -
- b6154f693b3c71c284b2984a9866b352 (9/5): シンプルな上質モダンで快適 - スタンダードキングルームに宿泊しましたが、大きな窓は道に面していて(でもうるさくない)、スペースが十分にある広々とした部屋でした。モールの一角にある感じで、モールには朝から利用できるカフェもあり便利。モール横には子どもが大喜びするプレイグラウンドがあり、街歩きに興味がない低学年でも機嫌が直ります。目の前にバス停があり(シティツアーバスも停車していました)、サグラダファミリアからは乗り換えなしの20分程度でした。
- 21b750244f9373f31449305c7de10c8b (9/5): Tout s’est bien déroulé - La serviabilité et la gentillesse de ceux qui s’occupaient de nous Rien
- a5385fc8139a722c8ae307845f288b97 (7/5): - L'esmorzar era bastant bé, però podria estar millor amb més fuita. La habitació molt agradable i la ubicació perfecta. . Que l'hotel no tingui aparcament i tampoc conveni amb l'aparcament de l'illa no és gens pràctic.
- 658f452cf12172f831b82f6465cc50fc (9/5): -
- Jorge Alberto (9/5): Comfy way to know Barcelona away from the crowds - People were friendly since arrival, helping me with everything I needed. Even the team members in training were properly capacitated to serve a guest without problems. Rooms were huge for the price, nice location right at the mall and far away from the hectic city center, but close enough by bus or metro. Breakfast was ok. I feel bad of putting it on the negative side, because it was great, but it was the weakest part of the Hotel's serive.
- Heidi (10/5): Loved it! - The location was perfect. The rooms are spacious. The pillows were not comfy.
- Qiong (10/5): Great stay and would definitely recommend to other families. - It’s very quiet neighborhood, not close to the metro but we managed to get public transport and using taxi to get to places. We liked the location as a family as it feels the area is clean, safe and lots of shopping and places to eat. The best thing for my kids is the playground at the back. Nothing
- Maria Asuncion (8/5): -
- Filipe (9/5): -
- Andrea (9/5): Lo mejor del hotel fueron los desayunos - Es nuevo el hotel y muy cómodo. Está lejos de lo turístico pero está en una zona muy linda y fancy.
- Dina (9/5): -
- Javier (7/5): Demasiado caro para un fin de semana - La ubicación del hotel es muy buena. La poca empatía del personal y el espíritu de cobrar por todo lo que solicitamos. No nos dieron muchas opciones.
- Hasan (9/5): -
- Vera Reich (8/5): -
- Gabriele (10/5): Viagem para estudar - Localização e conforto Sem comentários
- Hazen (9/5): Excelente hotel. - Excelente acomodação. Poderia melhorar o preço.
- Liis (9/5): It was a great location for a - Spacious room, modern, high quality
- CHENGWEI (10/5): -
- Gabriela Andreina (10/5): -
- yusuf (10/5): -
- Daniel (10/5): Good location and good price - Spacious room, everything new. Nothing
- Jasli (8/5): - La rapidez en que nos dieron la habitación, fué increíble. Me cobraron tasa turística por ir a ver una ciudad de mi país, no entiendo la verdad...
- Boris (10/5): -
- loglaz (10/5): Otel kısaca muhteşemdi, ,huzurlu bir ortamı vardı,temizlik çok iyiydi ,personel güler yüzlüydü. - Kahvaltı alanı geniş ve modern tasarlanmış .Ürün çeşitliliği tatmin edici özellikle et ürünleri çok çeşitli sunumları güzeldi,Her gün sabah taze sıkılmış meyve suları , çay ,kahve çeşitleri seçenek fazlaydı , glutensiz seçenekler, meyveli yoğurtlar kısaca aradığınız her şeye ulaşmanız mümkün.Otel konumu çok güzeldi hemen bitişiğinde büyük bir alışveriş merkezinin varlığı çok işinize yarayacaktır. Biz konakladığımızda hava soğuktu ısınma merkezi olduğu için belirli bir saate devreye giriyordu gündüz otelde çok kalmadık ama kaldığımızda biraz serindi tek olumsuz yönü buydu.
- Jorge (9/5): - Localización
- AIDA (10/5): -
- Nicola (10/5): -
- Svan (7/5): - Good hotel but only bearly 3 star. Staff where super good in what they do. Air con does not work. You have to call the lobby to do changes. In the end I had to change my room because it it didn't work at all. Breakfast was shameful, lack of everything, eggs tasted like oil and the bacon was just boiled or left in water to overcock. Overpriced hotel for what you get.
- Martin (9/5): G - Direkt an der Avenida Diagonal. Einkaufszentrum 5 Meter weg und sehr breites Angebot. -
- Iris (9/5): -
- Abdulwahab (8/5): - Cozy... Quite Faraway from everything else
- Asem (8/5): -
- Celso Mauro (9/5): - Hotel com excelente Localizacao
Pode variar mais o menu do pequeno almoco
Pode orientar melhor os hospedes sobre o uso do Ar condicionado/ aquecedor e canais da Tv do quarto Menu repetitivo no pequeno almoco
- Heimo (8/5): - Good no nonsense hotel, I would say perfect for business travel. Many restaurants nearby but it is not a touristy neighbourhood. There is a fantastic food market in the basement of the adjacent shopping mall.
- María Gabriela (10/5): Perfecta -
- K8644MQtracyb (10/5): Very nicely appointed. Great value! - We loved this hotel. We had a large room very comfortable. Staff were very nice. Nice outside deck are and common space. Not the most ideal location to attractions but in a nice business area.
- Nuria (10/5): -
- mesutfiratoglu (2/5): SAFETY WARNING: Life-Threatening Incident and Zero Management Accountability - I stayed at this property from November 26th to December 18th, 2025. While I am a loyal Marriott Gold Elite member, I feel it is my duty to warn other travelers about the serious safety risks and the lack of professional responsibility at this hotel.
During my stay, I suffered a life-threatening incident caused by gross negligence within the property. I have clear video evidence of this event, which proves how dangerous the situation was.
The most shocking part was not just the incident itself, but the management's reaction. I reached out to the General Manager, Mr. Ruiz, multiple times to find a fair resolution. Instead of taking responsibility for a guest’s safety, the management chose to ignore my emails for weeks and eventually hid behind vague corporate excuses.
If you value your safety and expect a professional response when something goes dangerously wrong, I strongly advise you to look elsewhere in Barcelona. A brand like AC/Marriott should prioritize human life over bureaucracy, but unfortunately, that was not my experience here.
The matter is now being handled by my legal counsel. I have all the documentation and video recordings to support these claims.
Stay away if you expect a safe environment and accountable management.
- ATHANASIOS (10/5): -
- tavdumadze (9/5): -
- Serena (8/5): -
- Àngel (10/5): -
- IDACUADROS (8/5): Hotel molt ben situat i personal' amable - Ubicació, molt net, habitacions amples, personal amable Vàrem anar a sopar i 2 dela plats principals (de 3 O 4) ja no wuedaven
- jainrachit (8/5): Stay was great. Location is v good. Boring Breakfast - Stay was great. Location is v good.
-->Right in front of bus stop, next to a mall with grocery store and medical shop.
-->Room sizes are the best part about the hotel.
-->Staff was very accommodating, special mention for ISI from the Front Desk and Patricia in the restaurant. V Helpful.
-->Daily housekeeping was an added advantage.
-->Breakfast is very very boring. I mean its exact same every morning, just 1 change of dish else exactly the same what they serve daily. There could be so many options to be on rotation. For a brand like Marriott, this is something they really need to fix.
-->Disposable Glasses in rooms instead of crockery feels so low grade hotel.
-->More and properly placed switch board in the room would be helpful.
I would recommend the hotel for a stay in Barcelona.
- Gürcan (10/5): - Herşeyini çok beğendim Odada terlik yoktu
- Fatiha (9/5): Très Bon hotel bon séjour à part l’incident qui s’est passé avec le manager le reste du personnel était très sympathi - L’emplacement l’hôtel dans l’ensemble était très bien J’ai réservé 2chambre d’hôtel pour moi et mon mari mes 2enfants pour un séjour de 10 jours ,mon mari pour des raisons professionnelles n’as pas pu venir j’étais obligé de libérer la 2em chambre et garder juste 1 elle n’a pas voulu me rembourser la totalité de la somme elle m’a pris 1200€ sachant que dans la chambre il y’avait un très grand lit plus un lit convertible , je dormais avec mes filles dans le grand lit comme même .elle a insisté pour que je paye pour 3 personne et dire que la 3em personne était un enfant de 4ans c’était le manager de l’hôtel je lui pardonnerai jamais ce qu’elle nous a fait enduré elle était trop dur
- Alexandre (9/5): -
- Maria Dolores (7/5): Comodidad - La habitacion, sus camas son comodisimas. La habitacion es sencilla pero muy practica y bien ambientada. Tiene lo necesario. La parte que nos decepcionó fue que no disponen de Smart TV, los niños no pudieron ver Nextflix y las opciones disponibles eran limitadas. Ademas no pudimos cambiar el idioma. La tecnologia avanza y deberian actualizarse.
- Ipek (5/5): - Location The windows are not possible to open hence the rooms stays without fresh air.
- Shalva (9/5): -
- APOSTOLOS (6/5): -
- JOAN IGNASI (9/5): -
- Marco (9/5): -
- Barbara (6/5): -
- Albert (10/5): Excelente hotel i servicio - Todo excelente
- Font Corominas (9/5): - L'amabilitat del personal L'habitació freda I no poder escalfar
- Roy (7/5): - Las ventanas de la habitacion no se abriam.
- Ruben (9/5): -
- Luisella_Elisa (4/5): Long check out junior staff - The hotel is in a business area, rooms are nice. Anyhow it seems that the staff is extremely junior and not familiar with the system. They messed up with the deposit and at checkout out they were not able to release the deposit so I had to pay again blocking my card for the double of the amount.., the long and messy check out caused me to loose my train. They denied any responsibility once they caused issues. Usually in customer service the starting point is to say sorry … in short nice hotel but staff junior and not professional, for sure not up to the price and hotel category.
- Dora (9/5): -
- Iris (9/5): Overall, it was a pleasant and comfortable stay despite the less convenient location. - I had a wonderful stay at this hotel. The room was spacious, well-designed, and the bed was incredibly comfortable. The breakfast offered a good variety and quality, and the hotel’s facilities were excellent overall. The location wasn’t ideal for sightseeing, as you had to rely on buses that were not always reliable.
- Žana (9/5): - Odlična, mirna in urejena lokacija, ter dobra povezava z mestom. Okusni in simpatično postreženi zajtrki v lepem ambientu. Čiste sobe, vsak dan sveže brisače. Enojne postelje in nekoliko starejše pohištvo v sobah. Jogi na pomožnem ležišču ni bil najbolj udoben.
- Farhan (8/5): Great! - Room was great and the bathroom was very clean. Breakfast was very good. Location of the hotel was excellent, right next to a shopping centre and some nice cafes. The sofa bed in the room was a bit uncomfortable. Breakfast didn't have halal options.(its a major city and you would expect halal options)
- attila (9/5): -
- Daehyun (10/5): -
- Jose Miguel (10/5): Conexión por crucero - Ubicación y limpieza El colchón es malo !!! No pude descansar. Me gusta algo dureza
- Altawara (10/5): -
- Luca (9/5): -
- Marie (7/5): Convenient and great food and shopping nearby -
- tomtimar (10/5): Kiváló. -
- Maja (10/5): było wspaniale ! - Wszystko wspaniale , śniadania fantastyczne , hotel nie ma parkingu , ale można zaparkować na ulicach obok lub w centrum handlowym. nic
- Humberto (9/5): - Local limpeza atendimento
- bader (9/5): Will come again - Perfect hotel Nothing
- Violeta (9/5): Bien - Ubicación Recepción debe ser más amplia
- Maria Isabel (10/5): -
- Ferran (10/5): -
- Mohammad (9/5): كانت جدا رائعه موقع الفندق بجانب موول وكافيه ويبعد عن ساحه كاتلنيا ١٧ دقيقه مشي - الافطار جيد ولكن ينقصه كم طبق
- Luca (10/5): -
- SerkalemA (10/5): Best hotel - Perfect location. Easy and fast check in and check out. Great break fast. The 2 wait staff, the lady and the gentleman during breakfast time were very nice and attentive. Room had everything.
- KAYOKO (10/5): 満足 - 道路に面してるのに静かで快適 レストランのメニューが夕食は乏しいが,近くにたくさんあるのでしかたないかもしれない。
- Luca (10/5): -
- Luca (10/5): -
Photos