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Design studio Liaigre has completed a new spa at Hôtel Costes in Paris, extending the contemporary aesthetic it established in the hotel’s Castiglione wing. The spa includes a 65-foot swimming pool, eight treatment rooms and skincare treatments from Augustinus Bader; opening dates and access details were not provided in the report.

Design studio Liaigre has completed a redesigned spa at Hôtel Costes in Paris, adding a 65-foot swimming pool and eight treatment rooms to the five-star hotel. The project extends the contemporary design the firm previously created for the hotel’s Castiglione wing, according to Design Milk.

The spa sits at the base of the Castiglione wing and uses travertine, smoked oak, lacquer and liquid amber across its interiors. Design Milk describes the result as a moody setting intended to feel restorative. The report credits Matthieu Salvaing with the project photography.

Guests enter beneath a double staircase and pass through molded metal gates to reception. The space features a Dolby Atmos sound system and a custom fragrance created by perfumer Olivia Giacobetti. Lighting was designed by Arnold Chan and Isometrix, the report says.

The central pool is 65 feet long, lined with a lagoon mosaic and filled with oxygen-enriched water, according to Design Milk. Curtained lounge areas surround it. The spa also has eight treatment rooms, where guests can receive skincare treatments using products from U.K.-based brand Augustinus Bader.

At a glance
announcementWhen: Reported by Design Milk; the source doe…
The developmentLiaigre has completed its redesign of the spa complex at Hôtel Costes in Paris.

A New Spa for the Castiglione Wing

The project adds a substantial wellness facility to Hôtel Costes’ Castiglione wing, broadening the services available within the hotel. Its long swimming pool and eight treatment rooms make the spa a significant addition to the property, while the materials, lighting, sound and fragrance show how the design extends beyond the pool itself.

For Liaigre, the work is a return to a hotel where the studio had already shaped the Castiglione wing’s interiors. The new spa carries that design relationship into a shared hospitality space. The source describes the hotel as a five-star destination, but gives no information on spa pricing, guest eligibility or public access.

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From Hotel Lotti to Spa

Hôtel Costes opened on Rue Saint-Honoré in 1995 under brothers Jean-Louis and Gilbert Costes. The original hotel featured interiors by Jacques Garcia. Design Milk says the brothers later acquired nearby Hotel Lotti and added a second wing with an entrance on Rue de Castiglione.

Liaigre designed that Castiglione wing before returning to work on its spa. The source presents the new facility as part of the hotel’s continued development, while the earlier and newer spaces have different credited designers: Garcia for the original interiors and Liaigre for the Castiglione wing and spa.

Opening and Guest Access Details

Design Milk’s report does not give a public opening date, spa hours, treatment menu or prices. It also does not say whether the facility is reserved for hotel guests or accepts outside visitors. The report describes oxygen-enriched pool water and Augustinus Bader skincare treatments, but does not provide technical details about the water system or the specific treatments offered.

Visitor Information to Follow

Further information from Hôtel Costes or Liaigre would clarify when the spa is open to visitors, how appointments can be booked and what treatments and rates are available. Until those details are published, the reported project features establish what the spa contains, but not the terms under which guests can use it.

Key Questions

Who designed the Hôtel Costes spa?

Liaigre redesigned the spa complex at the Paris hotel, according to Design Milk.

What facilities does the spa include?

The spa includes a 65-foot swimming pool, curtained lounge areas and eight treatment rooms.

Which skincare brand is associated with the treatments?

The report says the treatment rooms offer skincare treatments from Augustinus Bader, a U.K.-based brand.

Can visitors who are not hotel guests use the spa?

The source does not say whether the spa is open to non-hotel guests or provide booking and access details.

Source: rss

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