The Condado Vanderbilt Hotel in San Juan, Puerto Rico, will unveil the second stage of its long-awaited revival, including extra luxury guestrooms, a spa sanctuary and what it claims to be the first hammam on the island.

By December, the US$200m (€149m, £118m) revitalisation of the five-star property, built in 1919 by Frederick William Vanderbilt, will be complete. Originally designed by Warren and Wetmore, the architectural firm known for Grand Central Station and the New York Biltmore Hotel, the 319 guestrooms and two newly-constructed suite towers have been reimagined by Wilson Associates.

Designer Jorge Rossello envisioned the 10,000sq ft (929sq m) spa and fitness facility that will be located directly in front of the hotel’s West Tower pool. The spa will house a sauna, steamroom and robe room, in addition to a customised Aroma Blending bar where guests can create their own signature fragrance blend from the Red Flower organic beauty line, according to Luxury Travel Magazine.

The spa’s hammam will have a marble-slab heated massage bed, marble benches and walls of mosaic marble.

The spa will have seven individually-designed treatment rooms, while a separate outdoor terrace will include two showers, a lounge and open-air treatment spaces used for two natural clay therapies.

Product lines at the facility will be supplied by Germaine De Capuccini skincare and Red Flower body care – both of which are unavailable at any other spa in Puerto Rico, according to Luxury Travel Magazine.

The fitness centre, directly above the spa, will overlook the ocean.

The hotel’s oceanfront terrace – providing a pathway to the two new pool lounge areas which are located on either side of the suite towers – will feature a 200sq ft (19sq m) mirrored pool with a waterfall, surrounded by private cabanas. The West Tower will also have an infinity pool, perched on the edge of the Atlantic. The East Tower pool lounge will feature three smaller pools with an intimate beach area, while hotel guests will have access to a larger stretch of beach adjacent to the hotel.