New Connections & Developer Services Charges
Our charges scheme is designed for our customers and sets out charges for services relating to the water and sewerage network or other work required on the water and sewerage network as a result of a development.
Our charges for the period starting 1 April 2025 to 31 March 2026 are outlined in our:
For details on our water connections charges for small developments, please see our guide for house builders (PDF 503 KB opens in a new window)
Read our frequently asked questions for our 2025/2026 charges here.
Details of previous years charges are outlined in our:
- Developer services charges for 2024/25
- Developer services charges for 2023/24
- Developer services charges for 2022/23
- Developer services charges for 2021/22
- Developer services charges for 2020/21
- Developer services charges for 2019/20
- Developer services charges for 2018/19
- Developer services charges for 2017/18
2025/26
- Our new connections charges rules 2025/26 (PDF 271 KB opens in a new window)
- Statement of significant changes 2025/26 (PDF 313 KB opens in a new window)
- Assurance statement for new connection services 2025/26 (PDF 223 KB opens in a new window)
2024/25
- Our new connections charges rules 2024/25 (PDF 225 KB opens in a new window)
- Statement of significant changes 2024/25 (PDF 165 KB opens in a new window)
- Assurance statement for new connection services 2024/25 (PDF 754 KB opens in a new window)
2023/24
- Our new connections charges rules 2023/24 (PDF 229 KB opens in a new window)
- Statement of significant changes 2023/24 (PDF 202 KB opens in a new window)
- Assurance statement for new connection services 2023/24 (PDF 1,212 KB opens in a new window)
2022/23
- Our new connections charges rules 2022/23 (PDF 228 KB opens in a new window)
- Statement of significant changes 2022/23 (PDF 365 KB opens in a new window)
- Assurance statement for new connection services 2022/23 (PDF 141 KB opens in a new window)
2021/22
- Our new connections charges rules 2021/22 (PDF 198 KB opens in a new window)
- Statement of significant changes 2021/22 (PDF 212 KB opens in a new window)
- Assurance statement for new connection services 2021/22 (PDF 138 KB opens in a new window)
2020/21
- Our new connections charging rules 2020/21 (PDF 2.2 MB opens in a new window)
- Statement of significant changes 2020/21(PDF 224 KB opens in a new window)
- Assurance statement for new connection services 2020/21 (PDF 650 KB opens in a new window)
2019/20
New charging rules came into place with effect from 2018/19. Further details can be found in the documents below:
Charges prior to 1 April 2025
Moving to new charging arrangements presents uncertainty for customers, particularly where they may have already committed to a development based on previous charging arrangements.
New charging rules are in place with effect from 1 April 2025, but there are some sites that have accepted a quotation or entered into an agreement with us under previous years charging arrangements but the site is not fully built out. For such sites we summarise the transitional arrangements below:
Site specific work transitional arrangements
In relation to site specific work, the following applies:
- Charges for some site specific work provided in quotations issued under previous years charging arrangements, and accepted within the validity period set out in those arrangements, are to continue to apply until 31 March 2026 unless the customer and the company agree to vary the quotation.
- Where the legal agreement is already in place in relation to charges for the site specific work carried out as part of an adoption, then the charges defined within that agreement remain valid for the life of the agreement unless the customer and the company agree to vary those charges.
Other transitional arrangements
The following charges listed below will be payable at the rate published in our charging arrangements for the charging year in which the service connection is made:
- Service connection administration fees
- Meter provision and installation
- Infrastructure charges and associated environmental component
- Water used during development
In relation to income offset the following transitional arrangements apply:
- For agreements entered into under charging arrangements in place from 1 April 2025 the ability to offer an income offset has been removed therefore income offset will not apply.
- For schemes agreed under charging arrangements in place with effect from 1 April 2020 the income offset payable per premises will be nil for all premises connected after 1 April 2025.
- For schemes agreed under charging arrangements in place on or before 31 March 2020 Income offset will be payable at the rate agreed in each individual agreement.
We first communicated our transition plan for income offset to our developer stakeholders at the annual developer day on 5 October 2022 and at a NAV engagement day on 7 December 2022. At these sessions we outlined our proposed transition for the removal of income offset across different agreement dates.
Information on transitional arrangements in relation to income offset can be found on our website in the developer day charges presentations available in our developer services document library.
Developer Day 2022 – Developer Day - Charges
Developer Day 2023 – Developer Day - Charges
Developer Day 2024 – Charging - Looking Ahead
If you wish to calculate the financial breakdown of your proposed scheme we have a budgeting tool to help you do this:
The environmental component funds environmental incentive scheme payments that we make to developer customers, and the charges are applicable to all household premises connected on or after 1 April 2025, irrespective of whether the premises will benefit from the environmental incentive scheme.
Separate charges for water and sewerage (shown below) are payable for each household premises connected for water and/or sewerage services.
Where a household premises is to have a water and/or sewerage infrastructure charge levied, irrespective of whether infrastructure credits are applied, the respective water and/or sewerage environmental component is payable.
The environmental component is due and payable at the rate published in our charging arrangements for the charging year in which the service connection is made.
- Environmental component water - £77.54
- Environmental component sewerage - £59.35
If you have any queries please get in touch.