Developer Services Charges

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Our Developer Services Charges Scheme sets out charges for services provided when developing land and laying new water and sewerage infrastructure.

Our charges scheme is reviewed regularly to ensure that our reasonable costs are covered and technical requirements are being met.

For our frequently asked charges questions and answers please search below.

Charging Arrangements for 2018/19

New charging rules for new connections to the water and wastewater network came 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)

Pricing announcement


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:

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