+44 (0)191 258 1653

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 

At Thermae Bath Spa in Bath, 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.