New Appointment Variations

As a developer you can request that a New Appointment and Variation (NAV) can be appointed to serve your development.

If you choose to work with a NAV to supply water and/ or waste water services, they will adopt, own and maintain your development network.

To find out more about using a NAV, visit Ofwat’s website.

If you are a NAV and wish to make an application for your wastewater bulk discharge or bulk water supply please complete the form and send to

NAV Application Form

NAV Application Form - Guidance Notes

NAV Income Offset Construction Information

NAV Bulk Supply Agreement

NAV Bulk Discharge Agreement

Expression of interest

Wholesale Statement of Principles and Charges

Methodology of NAV charges