Termal Burgo de Osma
Historic wellness retreat. Heavy on atmosphere — stone walls, wood beams, arched colonnades — balanced with contemporary room design and a full spa offering. Calm, adult-oriented, no-frills glitz.
Book spa treatments well in advance — availability fills up, especially at weekends
Why It Matters
Michelin Guide selection housed in an actual functioning Renaissance university. The thermal pool sits beneath the original cloister arches with Romanesque frescoes — the architecture does the heavy lifting. Featured in Condé Nast Traveler, Vogue, ELLE Decor, National Geographic Viajes, and Hola.
A 16th-century Renaissance university turned four-star spa hotel. The building — the former Universidad de Santa Catalina de Alejandría — was a place of learning for nearly 300 years before Castilla Termal transformed it into one of Soria's most distinctive stays. The original Plateresque façade and stone cloister remain intact, with a dramatic glass ceiling now covering the central courtyard where the bar and restaurant sit. Down a staircase, a dramatically lit subterranean thermal spa taps a genuine mineral-medicinal spring declared of public utility by Spanish authorities.
Where You'll Stay
8 room types available
Cloister Junior Suite
Junior suite-level space overlooking the cloister. Minibar, Nespresso, bathrobe and slippers standard. More room to breathe than a superior without going full suite.
Cloister Superior Room
Faces the Renaissance cloister directly. King Size bed and minibar included. The cloister view is the main draw — arched colonnades framing the glass-roofed courtyard.
KingDuplex Suite
Split across two levels. The duplex layout gives a sense of a private apartment within the historic building. Minibar, Nespresso, full suite amenities.
La Universidad Suite
The flagship room. Fireplace (ask reception to light it), private lounge, dressing room, Converso wine, thermal cosmetics gift, and full suite amenities. The kind of room that makes a short trip feel like an occasion.
Santa Catalina Suite
Named after the founding university. King Size bed, private lounge, Castilla Termal natural cosmetics, a bottle of Converso wine on arrival, and minibar. One of the hotel's premium options without being the absolute top tier.
KingStandard Room
Contemporary décor wrapped in the old university's stone bones. Rooms sit around the elegant central courtyard. Partially open bathrooms with bathtub or rainfall shower. Air conditioning, LCD TV with satellite, minibar, in-room safe. Pillow menu available.
Double or TwinSuperior Family Room
Designed for families with a King Size bed. Larger footprint than the standard superior with the same historic character. Suitable for parents with younger children.
KingSuperior Room
A step up from standard, with Nespresso machine added. Same atmospheric stone-and-contemporary mix. Set around the cloister courtyard.
The Property
Eat & Drink
2 venues on property
Restaurant
Spa & Wellness
Treatment Menu
On Property
How you'll actually spend your days.
Bikes available to rent through the hotel for exploring the medieval town and surrounding Soria countryside. Staff have arranged bike rentals at short notice per guest reports.
The hotel sits steps from the medieval centre. The Cathedral of the Assumption, Plaza Mayor, town walls, and Calle Mayor are all walkable. El Burgo de Osma is designated a site of cultural interest for its historic ensemble.
On-site playground and arcade games for younger guests.
Includes special attentions in the room and a tasting menu dinner. Bookable as an experience package.
A guided 90-minute thermal journey through wet and dry spaces in the subterranean spa. Includes ritual shower with peeling effect, sauna, river pebble footbath, contrast baths in mineral-medicinal water (hot at 38°C, cold at 20°C), bithermal showers, hammam steam bath at 42°C, and a rest room with herbal teas and pastries. Small groups only. Book via email: wellness.burgodeosma@castillatermal.com.
A special package built around the 2026 total solar eclipse, visible in Spain. The hotel is positioning itself as a prime viewing location — minimal light pollution, thermal water access, and historic surroundings.
Guided visit to a Designation of Origin winery in the Ribera del Duero region with a tasting menu and food-and-wine pairing. Part of the 'Between Water and Vineyards' experience package.
Amenities & Practical Info
The details that matter for planning.
On-site event and meeting facilities. Also available for weddings in the Renaissance cloister.
Available throughout all rooms and public areas.
Dedicated children's room on site.
Fully equipped gym on site.
Bar in the glass-roofed Renaissance courtyard.
Free loyalty club offering discounts of up to 20% on select packages. Sign up at tantumclub.castillatermal.com.
Available during limited hours.
Underground private garage at €12/day. Reservation required. EV charging facilities available in the garage. Free open-air parking is also available nearby.
Electric vehicle charging available in the private garage.
Open July and August only.
Mineral-medicinal water thermal pool in the subterranean spa beneath the Renaissance cloister. €38 per adult, €32 per child. Reservation required.
BUILD YOUR CASTILLA TERMAL BURGO DE OSMA PLAN
Rooms, dining, spa, and resort experiences — organized into one trip plan.
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