Charging for new connections

You could receive a financial incentive by building new homes to specified qualifying criteria.

You can get an idea of how much a new connection or new water mains might cost using the tools below. You’ll need to send us a completed application form before we can give you the actual costs of your project.

Quotes, agreements and approval notices are valid for six months for water connections, and 12 months for sewer connections, from the date of the covering letter (subject to change at our discretion). During this time, if anything changes (such as requirements, specifications or design changes etc) we’ll provide you with a new quote and a new agreement. 

The quote will be cancelled if it hasn’t been accepted (i.e., the agreement signed and quotation paid) within the respective time period. If the works are still required, you’ll need to send us a new application form and pay the application fee in line with the current charging arrangement document.

Find the right application form and get information on how to apply here. 

Our Board Assurance Statement confirms we’ve complied with Ofwat’s English New Connection Rules.

Our statement of significant change sets out how our charges have changed since 2024/25 and the impact on typical developments.

If you’d like to see our charges from previous years, email developercharges@severntrent.co.uk. 

From April 1st 2025, Ofwat have made changes to developer charging rules. 

The most notable of these are: 

• Income Offset will stop. This means water and sewerage companies will no longer give Income Offset to developer customers.
• A common framework for Environmental Incentives with the aim of improved water efficiency and/or more sustainable drainage for new homes which will be funded by a new Environmental Component. All developers will pay a small environmental component each time a property is connected to the network – one for water and one for wastewater.