Developers and building

Whether you're building your own house, adding an extension or planning a big commercial development, we'll work with you to make sure your water and sewerage plans are right for your project.

Beach huts

Have your say on our environmental incentives

We’re reviewing our environmental incentives for new developments that adopt water efficiency and sustainable drainage. Take part in our online survey to tell us what you think of our proposals.

To learn more about our current environmental incentives, see section 4 of our New Connection Charging Arrangements 2022/2023.

Popular services

If you're planning a new building or extension, here's what you might need to look at:


If you're building or converting a property you'll need to apply for a new water connection.

Sewerage connection

You'll need a sewerage connection to take wastewater away from a new building.

Building over a public sewer

You'll need to apply for permission if there's a public sewer within 3 metres of your planned building.

Looking for something else?

Now accepting BACS

Apply online

Our online forms are the best way to apply:

  • it’s quick and easy
  • you can pay by card
  • you can pay by BACS (bank transfer)
  • we’ll remember your details to make applying even easier next time
  • you’ll get an email confirmation when we’ve received your application
  • you can upload all your supporting documents.

Apply now

Unsure which developer service you need?

Whatever you're planning to build, we've created a guide to help you find what you need.

Services guide

All services

Apply online

Our online forms are the easiest way to submit and pay for your application.


If you're building or converting a property you'll need to apply for a new water connection.


Apply for permission to build over a public sewer or for a new sewerage connection.

New Appointments and Variations (NAVs)

Bulk water supply and sewerage services.

Level of Service

Our performance reports show the level of service you can expect from us.

Developer Services charges

Our services charging arrangements.

Contact developer services

If you have a query or any feedback, please get in touch. We'd be happy to help.

Get in touch