Development consent orders

This document is only available with a paid isurv subscription.

The Thames Tideway Tunnel (TTT) is a major tunnelling project in the centre of London that will collect 34 combined sewer outflows that currently discharge directly into the tidal Thames. It was born out of the need to address the UK’s non-compliance with EU Directive 91/271/EEC concerning urban waste water...

Explore the subscription options here to get full access to isurv, including downloads.

Try isurv for free!

You can get instant access to a free, 7-day trial of isurv simply by filling in the free trial form. Please note that the free trial includes full access to isurv with the exception of downloadable content which is only available with a paid subscription.

Sign up for the isurv newsletter, to receive a monthly round-up of the latest isurv updates.

For further questions, don't hesitate to call: +44(0)247 686 8555.