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Charging Arrangements for 2018/19

New charging rules for new connections to the water and wastewater network come into effect on 1 April 2018. The new rules require water companies to change how they have previously charged for new connections services and these new charges for 2018/19 are laid out in our New Connections and Developer Services Charging Arrangements.

This document is applicable to Self-Lay Providers (SLPs), New Appointees (NAVs) and Developers/Builders.

Following Ofwat’s Information notice IN 18/05 and its revised Wholesale Charging Rules, published in March 2018, we have made some changes to our Developer Services Charging Arrangements. We are required to include, within our Developer Services Charging Arrangements, the provision for Water Supply Licensees (retailers) to request new connection services. We have made this change to the Charging Arrangements and republished accordingly.

We have also made minor changes and clarifications to our Charging Arrangements following further engagement with, and feedback from customers and stakeholders.  No new or amended charges have been introduced as part of these minor changes. The document below summarises these changes.

Board Assurance Statement 

The South West Water Board of Directors publishes this Board Assurance Statement confirming that South West Water's 2018/19 New Connections and Developer Services Charging Arrangements are compliant with its legal obligations and consistent with Ofwat's Charging Rules for New Connections Services (English Undertakers)

- Board Assurance Statement


The Water Act 2014 brought in changes that mean that all water companies have been required to modify the way they charge customers for Developer Services related activities from April 2018.

Ofwat, the economic regulator, has published new rules that now mean that water companies will provide more fixed charges rather than bespoke prices on request. Ofwat’s rules follow the overarching principles of:

  • Stability and predictability
  • Transparency and customer-focused charging
  • Fairness and affordability, and
  • Environmental protection

From 2017/18 the way that we charge for Developer Services related activities has changed and if you would like to know more further details can be found on the following links:


Each quotation is calculated individually based on the information provided in your application, the location of our existing water network and the work involved.

Your charges will be shown on your quotation. They will consist of:

  • relevant new connections charges
  • plus the water infrastructure charge (if applicable)
  • less the design charge (if applicable)
New Connections Charges


Infrastructure charges

Infrastructure charges apply to premises being connected to water and sewerage services for domestic purposes for the first time. These were introduced under Section 146 of the Water Industry Act 1991 so that water (and sewerage) companies can improve their water networks to meet the extra demand that new connections place on them.

For more information, please see Infrastructure Charges

The current standard infrastructure charge can be found in the New Connections Charges.



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