The hotel takes not only its name, but also its architectural inspiration from Sukhothai, the first capital of Siam, reigning from 1238 to 1376. Sukhothai means "dawn of happiness", and the Sukhothai period is considered the golden age of Thai art and architecture.

The arrangement of the buildings, their low height and the rich vegetation make The Sukhothai an oasis within central Bangkok. Like the palaces of the Sukhothai period, the design of the hotel is based on symmetry, courtyards, reflecting ponds and open-air arcades. Long processional axes are accented by Sukhothai-style art and sculpture. The reflecting ponds at the entrance mirror ceremonial bells and the lobby courtyard reflecting pond mirrors a sequence of stupas. The strong right angles and symmetry of the buildings are a softened by the tropical gardens and lotus ponds of the central courtyard and by the gracious pavilions of Celadon, one of the finest Thai restaurants in Bangkok.

The interior design of the public spaces and the rooms, again echoing the royal style of Sukhothai, combines fine design and detailing with luxury - rich Thai fabrics, teakwood, marble and mirrors. Custom-designed furniture and lighting are influenced by traditional Sukhothai style and modern simplicity. Each room and suite maintains the high quality design and distinct style that define the architecture of The Sukhothai.