Diagonal Hotels will continue to manage the Alexandra Barcelona as part of an agreement with Hilton Worldwide.
The 116-bedroom property is the fourth Doubletree by Hilton hotel in Spain. The brand plans to open a fifth, in Girona, in the coming months.
Following a renovation, Alexandra Barcelona, which is in the Paseo de Gracia area of the city, now boasts the Da Luca restaurant serving Italian cuisine. Other features of the hotel include a wellbeing area, with a dry Finnish sauna and massage room, a fitness centre, four function spaces and a 24-hour business centre.