Paimio sanatorium to reopen as international wellness hotel

Plans are underway to transform Alvar and Aino Aalto’s Paimio sanatorium into an international wellness hotel, according to a new vision developed by the Paimio Sanatorium Foundation and Norwegian architecture firm Snøhetta.

The 1933 building, a masterpiece of modernist architecture, ceased hospital operations in 2015. Originally designed as a tuberculosis sanatorium, it later functioned as a general hospital before closing.

The project aims to preserve the original concept of architecture as a healing force, with abundant natural light, forest surroundings, and the building’s iconic sun terraces set to be restored. The yellow staircase, one of the most photographed features, will remain a focal point.

Mirkku Kullberg, chair of the Paimio Sanatorium Foundation, said the Aaltos’ design philosophy—centered on human well-being and a bold approach to life—would guide the transformation. The complex will combine hotel operations, wellness services, and cultural activities.

Tommi Lindh, executive director of the Alvar Aalto Foundation, emphasized that the restoration will respect the building’s layered history, preserving elements from both its sanatorium and hospital eras. The National Board of Antiquities and the Alvar Aalto Foundation will oversee the work.

The project gains momentum as Finland’s bid to include Aalto’s architecture on the UNESCO World Heritage list nears a decision in July. Paimio sanatorium is one of 13 sites in the proposed serial nomination.