 The hotel was designed mainly by London and Paris based designers in the Louis XVI style , which is consistent throughout , giving the hotel its " special atmosphere of perfect appropriateness and elegant restraint " . Marcus Binney describes the great suite of ground @-@ floor rooms as " one of the all @-@ time masterpieces of hotel architecture " and compares it to a royal palace with its " grand vistas , lofty proportions and sparkling chandeliers " . Waring & Gallow were responsible for many of the fine design work of the interiors The ground floor plan dated to 1906 illustrated a large main restaurant overlooking the terrace and garden , a large central Grand Gallery and Winter Garden , a circular vestibule beyond the reception room , the Marie Antoinette Suite near the restaurant , and numerous shops . The Grill Room had its own entrance on the right side of the entrance doors on Piccadilly , with a staircase leading down . The Grill Room was on the eastern side , and the Banqueting Hall lay at the western end , beneath the restaurant . Today this is home to the Ritz Club . A wide vaulted corridor , the Long Gallery , runs from the Arlington Street entrance on the east side to the restaurant on the west side , with finely woven <unk> carpets . Along it are several intricate horseshoe archways . A triangular @-@ shaped staircase features in the building 's southwest corner . The curving main staircase was built to allow women to make a " dramatic entrance and show off their gowns to best effect " . 
