Connection charging arrangements
Find out about our charges for connecting a property to the public water supply or a public sewer.
We collect and dispose of wastewater across the south east of England, and supply water in parts of this region. Water is supplied in the rest of the region by other water supply companies – contact them for more about their charges.
The information below applies when you intend to connect premises to the public water supply or a public sewer, even if you are using an existing drainage connection. It explains the liability to pay infrastructure charges directly to Southern Water in addition to the cost of making the connection.
New connections charging arrangements 2024/25
These charges will come into effect from 1st April 2024.
New Connections charging arrangements 2024-25
New connections charging assurance statement
Statement of Significant Changes
New connections charging arrangements 2023/24
These charges will come into effect from 1st April 2023.
New Connections charging arrangements 2023-24
New connections charging assurance statement
Statement of Significant Changes
Consultation - New Connection Charging FY2024/25
To find our New Connection Charging Arrangements FY2024/25 Consultation for our Developer, Self-Lay Provider and New Appointment and Variation customers, click here.
In the consultation document we discuss our plans for next year’s New Connection Charging Arrangements.
The consultation covers:
- The Infrastructure Charge
- Site-specific Charges
- Environmental Incentives
Please send us your response by email to: [email protected]
Our consultation will run until Friday 1 December 2023 for any feedback you have.
* The calculation tool can be used to provide customers with estimates, please be advised that this is indicative only and would be followed up with a formal estimate on application.