Corinthia Grand Hotel Astoria has unveiled its Sisley-branded spa in Brussels, Belgium, following a major refit of the entire property – with ESPA Design consulting on the wellness experience.

The property’s newly-opened subterranean spa measures 1,200sq m and has six treatment rooms. It was designed in a collaboration between interior designers GA Group and ESPA to encompass organic details such as marble accents, brass elements and warm oak finishes to fuse classical grandeur with modern luxury.

The restored 100-year-old Belle Époque landmark property opened the doors to its 126 rooms and suites in December 2024.

The spa concept celebrates Brussels' lacemaking tradition and features Sisley Paris. This will be Corinthia’s second global spa collaboration with Sisley following the launch of The Surrey Spa at The Surrey, A Corinthia Hotel, which opened in New York in October 2024.

The spa's thermal area has a vaulted ceiling above a lap pool and vitality pool which is set to 34 degrees Celsius and has a waterfall cascade and hydro massage jets. There's also a sauna, aroma-infused steamroom, ice fountain and experience showers for contrast bathing.

Kemaqua installed the thermal facilities.

Spa Supply Solutions provided procurement support for the spa's furniture, fixtures and equipment.

The spa also has a tea room for guests to relax and enjoy light refreshments and a retail boutique, along similar lines to Corinthia's London property.

In addition to consulting on the design for the spa, ESPA provides treatments, including aromatherapy experiences and an exclusive option available only at Corinthia Brussels – the ESPA City Recharge Ritual.

This is a 120-minute full body massage designed to improve circulation and relieve muscle tension. Spa therapists use warmed volcanic stones to carry out the body treatment and chilled cryo globes for the facial massage. An isotonic eye mask is applied and guests also get a scalp massage. This treatment costs €310 (US$351, £260).

Sisley options include a 60-minute Black Rose Treatment for the face and body. Quartz stones are used during the facial to plump the skin and reduce signs of fatigue. This treatment also costs €310 (US$351, £260).

Kerry Turpin, head of spa and wellness at Corinthia Hotels, said: “The support and meticulous attention to detail from ESPA Design and GA have been instrumental in bringing our vision for the spa to life. This project exemplifies what’s possible when the best in the industry come together and this is reflected in the seamless spa journey we offer our guests.”

Jackie O'Hare, global commercial director, ESPA Design, told Spa Business exclusively, "The Spa at Corinthia Grand Hotel Astoria has been designed to offer a seamless journey of wellness, where every detail invites relaxation. From the moment guests arrive in the spa reception and boutique the details set the tone for an immersive experience.

“Each space has been curated to provide a tranquil environment,” added O’Hare. “With elements designed to guide guests through a rejuvenating journey of contrasts, restoring balance.”

About Corinthia Hotels

Corinthia is a growing family of luxury hotels, founded in Malta in 1968 by the Pisani family. The company has grown over the years into a multinational investor, developer and operator of hotels and real estate.

Its portfolio includes hotels in New York, London, Budapest, Bucharest, Lisbon and the island of Malta.

Current developments underway in various stages of design and construction include landmark hotels in Rome, Doha, Riyadh and new resorts in Malta and the Maldives.