Guidance notes
Here’s a handy summary of all our guidance notes so you can quickly access the ones you need.
Building over or near to sewers
For anyone extending their home or building near to a sewer
Download
1.6MB, PDF
New water connections
For anyone who needs a new water connection to a property
Download
340.5kB, PDF
New sewer connections
For anyone who needs a new sewer connection to a property
Download
77.1kB, PDF
Water main self-lay
For developers who wish to construct their water mains themselves (or use another organisation to do this), these guidance notes will help developers apply for self-lay servicesNote: you should also read our self-lay design guide
Download
163.1kB, PDF
New water main requisition
For anyone who is building new houses that can’t easily connect to an existing water main
Download
1.1MB, PDF
New sewerage requisition
For anyone who is building new houses that can’t easily connect to an existing public sewer
Download
132.4kB, PDF
Water main diversion or alteration
For anyone who wants to remove or alter water mains on their land
Download
103kB, PDF
Sewerage diversion or alteration
For anyone who wants to remove or alter sewerage on their land
Download
2MB, PDF
Sewerage adoption - single property
For anyone who wants to connect to a sewer outside the boundary of their property
Download
719.5kB, PDF
Sewerage adoption - multiple properties
For anyone who wants to connect to a sewer outside the boundary of their property
Download
220.1kB, PDF
Surface water incentive scheme
For anyone building a new site who has plans to remove surface water from the wastewater network, you may be eligible for our incentive scheme
Download
6MB, PDF
Site managers guide to new connections
For any site managers who are working with us on new connections
Download
6MB, PDF
Sustainable drainage on new developments in Wales
How you can manage surface water
Download
197kB, PDF
Help & advice