Dwr Cymru Welsh Water

If you are building a new development, replacing a sewer or making alterations to your existing sewer arrangements, our Developer Services team are here to help.

To make a sewer connection application, please complete our expression of interest form below. This will help us to make an initial assessment and provide you with all the information you need to get your development underway.

Please note: the submission of this form is for enquiry purposes only and is not a formal application. Please refer to our guidance notes for further information.