Guidance notes
Here’s a handy summary of all our guidance notes so you can quickly access the ones you need.
Pre-planning
- For anyone thinking about building
Building over or near to sewers
- For anyone extending their home or building near to a sewer
Fire sprinklers
- For anyone building a new home or flats in Wales
New water connections
- For anyone who needs a new water connection to a property
New sewer connections
- For anyone who needs a new sewer connection to a property
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 services
- Note: you should also read our self-lay design guide
New water main requisition
- For anyone who is building new houses that can’t easily connect to an existing water main
New sewerage requisition
- For anyone who is building new houses that can’t easily connect to an existing public sewer
Water main diversion or alteration
- For anyone who wants to remove or alter water mains on their land
Sewerage diversion or alteration
- For anyone who wants to remove or alter sewerage on their land
Sewerage adoption
- For anyone who wants to connect to a sewer outside the boundary of their property
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
Site managers guide to new connections
- For any site managers who are working with us on new connections
Sustainable drainage on new developments in Wales
- How you can manage surface water