Application forms, guidance and agreements
Get started with one of our online applications, PDFs or guidance documents.
How to apply
Find the right application
Water applications
Connect your property to our existing water network with a 25mm or 32mm connection.
Connect your property to our existing water network and get our approval to make a new sewer connection.
Connect your property to our existing water network with a 50mm or more connection.
Apply for a new water connection if your property currently shares a supply with neighbours.
Request to install a new water main if our current network can't supply your site.
Note: This application should only be used by developers or agents acting on a developers behalf.
Request to move a water main or other water assets that are on your land.
Sewer applications
Get our approval to make a new sewer connection.
Connect your property to our existing water network and get our approval to make a new sewer connection.
Includes both - Formal agreement and self-certification
Apply for a new public sewer connection across third-party land when no other wastewater removal options are available.
Apply for a new public sewer connection for properties not currently connected to the network.
Request to move a public sewer or other waste assets that are on your land.
Request a meeting with us to discuss your plans for a new private sewer system.
Offer new sewers and/or pumping stations for adoption in line with Section 104 of the Water Industry Act.
Request a meeting with us before you begin building new sewers in line with Water UK's 'Sewerage Sector Guidance'.
Request an inspection of newly built sewers before entering the maintenance period in line with Water UK's 'Sewerage Sector Guidance'.
Request a final inspection of newly built sewers before we formally adopt them in line with Water UK's 'Sewerage Sector Guidance'.
Pre-development applications
Find out how and where to connect a development of more than five domestic properties, or commercial properties to our water and sewer network.
Note: You will not receive a design or an estimate with this application.
Self-lay contractor services applications and notification forms
Request an assessment of where your development can connect to our network.
Request to install a new water main if our current network can't supply your site.
Connect your property to our existing water network with a connection up to 90mm.
Tell us that water mains have been tested before connecting them to our network by sending us a Form 3.
Tell us that your intend to connect to our water network by sending us a Form 4.
Tell us meter details so we can set up new billing accounts by sending us a Form 5.
NAV applications
Ask us to check if we provide services to an area or not.
Connect your NAV site with a new water supply.
Find out how the supply to your NAV site will be provided and get an estimation of costs.
Learn more about our charges
Our charges are updated each year. They’re published on 1st February and take effect on 1st April for a 12-month period.
For a full breakdown of application fees, check out our Charging Arrangement Document.
Contact our Developer Services team
If you need help finding the right application form to use, get in touch - our team are here to help.