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Thermae Bath Spa


Bath District Council



Construction Cost:


Project Details:

A thermal spa pool using highly mineralised natural spring waters for the main pool, the Roof Top Pool, The Hot Bath and the Cross Bath.

Our Role:

Three individual water treatment plants.

Design Team


Nicholas Grimshaw & Partners

Structural Engineer:


M & E Engineers:


Pool/Spa Consultant:

Devin Consulting

Britain's only naturally warm mineral rich waters 

The four pools at the spa are supplied with highly mineralised natural spring water that exits the ground at 44.5oC. A comprehensive regime of water treatment and water testing is provided to ensure that the waters are both pleasant and safe for bathing.

The pre-treatment process is carefully designed to maintain the naturalness of the spring waters.