Bryan Cave Leighton Paisner and Pinsent Masons have secured their latest major infrastructure mandate, guiding Thames Water as it pushes forward with plans for the £2.2bn South East Strategic Reservoir Option.

The site will be the second-largest reservoir in England and support Thames Water, Southern Water and Affinity Water in delivering a safe and secure water supply to 15 million people and meeting the demands of a growing population and the pressures of climate change.