Diagonal Residence Apartments Situated in Barcelona, the Diagonal Residence Apartments provides 3x000D star rated accommodation. The hotel offers restaurant facilities. Room Features Diagonal Residence Apartments. A hairdryer, iron and ironing board are provided in every room. We are sorry, but smoking is not permitted in either the bedrooms or the public areas of the hotel. All rooms have tea and coffee making facilities. Additional Info. An airport shuttle service is available from the hotel. The hotel is pet friendly. Hotel guests can make use of the concierge service that is provided.