We’ve created a list of our frequently asked questions for NAVs. If you can’t find the answer to your question, please contact our Developer Services team on 0333 000 0060. They’re here to help Monday to Friday 8am-4pm.
Visit the Ofwat NAV policy here.(opens in a new tab)
Generally, a NAV can be granted in a few situations:
- The area is considered ‘unserved’ i.e. no properties in the area are served by a current appointed company.
- The current appointed company consents to transfer an area.
- A large demand of at least 50 mega litres of water per year.
We are committed to providing additional services to NAV companies on equivalent terms.
A range of services are available including: Water sampling and analysis; retail billing and collection services; network support – emergency and or planned; metering and water regulations. Please contact us if you would like to discuss the provision of any of these services further.
Each charging year runs from the 1st of April to the 31st of March. For each charging year we will publish our NAV pricing document by the 31st of January prior to the start of that charging year.
If there are existing SEW mains within the boundary of the proposed development, these can be diverted upon request from the NAV, at their cost and after agreement with SEW.
If SEW trunk mains remain on the site please note the following procedure. Prior to any works commencing in the vicinity of or plant crossing a trunk main, the NAV is to contact SEW and written approval obtained in advance. Further documentation in the form of risk assessments/method statements may be required in advance of approval.