Thai Square Spa

Thai Square Spa is London's most celebrated authentic Thai spa — a serene sanctuary steps from Trafalgar Square in the heart of Westminster, where the ancient therapeutic traditions of Thailand are honoured in their most complete and genuine form. Housed in a beautifully appointed space at 25 Northumberland Avenue, the spa features five dedicated Traditional Thai Massage rooms, seven Ritual Massage rooms, a lavish VIP Suite and a Sen Space for private relaxation — creating one of the most comprehensive Thai wellness environments in Europe. The treatment menu spans the full breadth of the Thai therapeutic canon: Traditional Thai dry massage (nuad boran), Thai oil massage, Royal Treatments inspired by the Siamese court, body scrubs, herbal rituals, specialist maternity therapies and wet treatments. Every session is delivered by therapists trained in classical technique, using authentic Thai herbal formulations and aromatic oils. Consistently praised by London Unattached, The Luxury Spa Edit and Time Out London as one of the capital's finest day spas, Thai Square Spa brings the true spirit of Thai wellness culture — ancient, holistic and utterly restorative — to the centre of one of the world's great cities.