The Hilton Diagonal Mar Barcelona, one of the city’s largest hotels, has embarked on a major multi-year renovation project designed to infuse the property with Mediterranean style, a strong sense of local flavour, and a deep commitment to sustainability. The comprehensive overhaul will be conducted in phases through 2027, allowing the 433-room establishment to remain fully operational throughout the process.


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Located on Passeig de Taulat in the modern Diagonal Mar i el Front Marítim del Poblenou district, the hotel is a landmark for international visitors and loyal members of the global chain. The renovation, a joint initiative between Hilton and the building’s owner, BNP Paribas Asset Management Alts, aims to transform the hotel into a more “experiential space” that appeals equally to business travellers, tourists, and local residents.

A New Gastronomic Destination

One of the first significant changes will be the unveiling of a new restaurant in June. Named Mön, the establishment will be led by acclaimed chef Artur Martínez, renowned for his work at Michelin-starred restaurants, including the celebrated Aürt, which was previously housed in the same hotel. According to the brand, the new concept will fuse local tradition “with a contemporary vision, becoming a benchmark gastronomic meeting point for both guests and city residents.”

Phased Transformation by 2027

The renovation strategy is designed to minimize disruption. Following the restaurant’s launch, the project will move on to redesigning the guest rooms with a warmer, more Mediterranean aesthetic. The hotel’s extensive meeting facilities, which include 22 separate spaces and a ballroom capable of hosting over 1,000 people, will also be completely updated.

Looking further ahead, the plan includes a redesigned lobby, the introduction of new suites with private terraces on the upper floors, and an overhaul of the popular pool club, already known to many young Barcelonians for its Puro Beach parties. The final phase, slated for mid-2027, will see the opening of a new rooftop restaurant and bar intended to become a destination in its own right.

“We are reinventing hospitality to respond to the needs of future guests and event organizers,” said Roger Brantsma, General Manager of Hilton Diagonal Mar Barcelona. “As Barcelona evolves, our hotel is also evolving, integrating design, gastronomy, warm hospitality, and the spirit of the Mediterranean.”

Sustainability at the Core

Beyond aesthetics, the renovation places a strong emphasis on environmental responsibility. The project will integrate modern energy efficiency systems to reduce the hotel’s footprint. This initiative aims to reinforce its existing international certifications, including Biosphere, which recognizes commitment to the UN’s Sustainable Development Goals, and BREEAM, a world-leading sustainability assessment method for buildings.

Vincent Mezard, Global Head of Living & Hospitality at BNP Paribas Asset Management, highlighted the city’s unique appeal. “Barcelona is one of the world’s leading tourist destinations thanks to its unique combination of history, culture, and lifestyle,” he stated, noting that the renovated Hilton Diagonal Mar will be poised to meet the “growing demand from travelers” seeking “premium and lifestyle-oriented experiences.”

While details of the total investment have not been disclosed, the project represents a significant commitment to enhancing one of Barcelona’s key hospitality assets, as first reported by El Periódico.

Primary source: El Periódico Barcelona.