St. Ermin’s is a characterful Westminster hotel set behind a red-brick Edwardian facade, close to St James’s Park, Whitehall and Buckingham Palace. Inside, the theatrical staircase, ornate plasterwork and light-filled lobby give the property a distinctive London identity, while the rooms feel more traditional and residential. Its history is part of the appeal, with long associations to political life and wartime intrigue, but the experience remains practical and comfortable, with Caxton Bar and the tea lounge adding convivial public spaces.