The iconic Hôtel de Crillon in Paris, France has re-opened after undergoing a four-year, €176m (US$200m, £150m) restoration.

Dating back to the 18th century, the historic property will be operated by Rosewood Hotels & Resorts and now houses 78 rooms, 36 suites and 10 signature suites.

Led by architect Richard Martinet, the redevelopment involved every aspect of the building – including the restoration of the landmark façade and grand reception rooms on the second floor, which are classified heritage landmarks by the French government.

The hotel’s interiors were created by four Paris-based designers: Tristan Auer, Chahan Minassian, Cyril Vergniol and Aline Asmar d’Amman.

Designer Karl Lagerfeld has decorated two of the signature suites, called Les Grands Appartements, which he says convey his “personal vision of French chic and modernity”.

Facilities at the hotel include Sense, A Rosewood Spa, a hair salon, two fine dining restaurants operated by Michelin-starred chefs and three bars.

The Sense spa houses a number of treatment rooms equipped with Gharieni furniture – including the MO1 series beds – and a large wet area, including a newly built, signature swimming pool. Natural light is used to illuminate 17,600 gold scales of the residential-style pool, which is surrounded by luxury decorations.

The treatment menu has been created specifically for Hotel de Crillon and includes treatments reflecting the history of the property – such as the “19th century French detoxification” body scrub – as well as those using ingredients sourced from the French countryside.

Hotél de Crillon is Hong Kong-based Rosewood’s third property in Europe.

Radha Arora, president of Rosewood Hotels & Resorts, said: “Our guiding philosophy is ‘a sense of place’ and this hotel intrinsically reflects the heart and soul of Paris.

“It radiates fine French contemporary lifestyle, timeless yet with an edge, not only in its design, but in gastronomy, art and service.”