Building and Developing

two people writing on paper
New connections charging

New connection charges 2021/22

Welcome to Severn Trent’s new connections charges.   

Our charges have been designed in line with the Ofwat charging rules, ensuring our developer customers experience greater simplicity and predictability than in prior years.

We’ve created our new connections charges with four principles in mind:

Providing stable and predictable charges

We recognise that our developers’ value stable and predictable charges so throughout our Charging Arrangement Document, where applicable and appropriate, we’ve published fixed charges for water and sewer connections which should allow a developer to work out a reasonable estimate of what they’ll pay. We also take all reasonable steps to ensure that the value of our charges do not fluctuate year on year.

Ensuring transparent and customer focused charging

We’ve published, where possible, fixed charges and defined both how we’ve calculated our charges and how we will apply our charges for activities required on site, enabling our developers to make a reasonable estimate of what they will pay for water and sewer connections. We have also included all charges that could be paid within our Charging Arrangement document to ensure we are completely transparent with no surprises. 

Ensuring fairness and affordability

To ensure all developers get a fair deal, both now and in the future, we’ve developed our charges so that they do not discriminate between our differing developer customers i.e. Self-Lay Providers (SLPs), New Appointments and Variations (NAVs), national developers, smaller house builders and individual customers. Our new connections charges apply to all developer customers, regardless of the number of properties connecting to our network. We’ve engaged with customers to share our proposed charges and gain feedback for potential future changes.

Providing environmental protection

Our environmental discount scheme encourages developers to build sustainable properties which save water usage and reduce the amount of surface water going into the public sewer reducing the risk of flooding.

Our Charges

We’ve reviewed each of our new connections charges in our latest Charging Arrangement Document (PDF). Throughout our Charging Arrangement Document the term “developer” refers to all customers who are building and developing properties. 

We’re required to publish our new connections charges by 1 February ready to come into effect on 1 April therefore the information above relates to our 2021-2022 charges. If you’d like to see our 2020-2021 new connections charges (which are still in use until 31 March 2021) please use the link below.

2020-2021 New Connections Charging Arrangement

Information on new connection charging and the changes brought about by Ofwat’s principles-based rules can be found at Ofwat’s website.

Looking ahead to 2022/23

We’ll be holding a number of developer customer engagement sessions during the Summer & Autumn of 2021 in readiness for our 2022-23 charges. We would love to hear your feedback and suggestion therefore, if you would like to attend one of these sessions please email


Working in partnership

While we were reviewing our new connections charging framework we worked closely with Water UK and consulted with developers, self lay providers (SLPs) and New Appointment & Variation (NAVs), along with their trade bodies and representatives, as it was important to hear what our customers thought about our proposals. Alongside this, our new charging framework has been through a rigorous assurance process and we have provided the Water Services Regulation Authority with an assurance statement (PDF) and statement of significant changes (PDF) from our Board of Directors.


                                                                                 Any questions

If you have any questions about our new connections charging framework, please call our developer services team on

0800 707 6600 – they’re ready to take your call Monday – Thursday 08:30 – 17:00 and Friday 08:30 – 16:30