Our charges

We provide a wide range of services to help support new development. These services are often referred to as “new connection services” and the way that we charge for them is changing from April 2018.

If you are involved in property development and you require new connections to our water or wastewater networks, then these changes will affect you. Customers that will be affected will fall broadly in to a number of groups:

• Large companies constructing many new properties per year
• Small and medium sized building firms
• Individuals building a new property for themselves (self-build) or redeveloping an existing property
• Companies that provide infrastructure for developers e.g. Self-Lay Providers (SLP) and New Appointees (NAV)

Water and sewerage companies are required to follow new charging rules, set by our regulator Ofwat. This means that from 1 April 2018, many of our charges become fixed; enabling developers, SLPs and NAVs to calculate a reasonable estimate of their costs for our services before making an application to connect.

Fixed charges will apply to many of our new connection services, including:

• Connecting individual properties to water and wastewater networks
• The provision of new water mains networks
• The adoption of self-laid water and wastewater infrastructure

Developers are liable to pay us infrastructure charges when they connect their new properties to our networks for the first time (or reconnect properties that have been disconnected for longer than five years). From April, our infrastructure charges will be reducing.

Where new water mains are required for a development site, we offset the cost of the new water mains by accounting for the future income we expect to receive from the occupiers of the new buildings. This is known as “income offsetting”. From April, we are changing how we calculate the income offset amount and this will affect:

• The asset payment made to SLPs when they provide the new water mains for developments
• The payment made to NAVs when they connect new properties to our network via their networks
• The “discount” that is applied to the cost of new water mains if we are asked to provide them

We are also changing the way we calculate the income offset where we are asked to provide new sewers for a development.

Please refer to our comprehensive Charging Arrangements document in the downloadable content below. In addition, we have produced a document setting out transitional arrangements for those developments that are already in progress or are due to progress between 1 February 2018 and 31 March 2018.

Downloadable content

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    Water infrastructure charges - discounts for water efficiency

    Please use this form to claim for discounted water infrastructure charges.


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    Charging Arrangements 2018/19

    Developer services.


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    Charging arrangements for new connection services

    Transitional arrangements - 2018/19.


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    NWL Board Statement of Assurance

    Charging rules for new connection services 2018-19.


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    Charges Scheme 2017/18

    New development.


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