Building and Developing

New site developments
If you're building multiple domestic or commercial properties on a site that will have a new road/access you'll probably need a new water main. You can choose either STW or a WIRS accredited Self Lay Provider (SLP) to lay the new main and/or service connections. Proposed sewers into the site can be offered to us for adoption so we become responsible for them.

Multiple domestic or commercial properties

If you're building multiple domestic or commercial properties on a site that will have a new road/access you'll probably need a new water main. You can choose either STW or a WIRS accredited Self Lay Provider (SLP) to lay the new main and/or service connections. Proposed sewers into the site can be offered to us for adoption so we become responsible for them.

You should be aware that from 1st April, the water retail market for business customers is changing, customers have the freedom to choose who provides their retail services such as billing.

Where the property to be connected is for a non-household customer, you will need to choose a retailer before connection.  If you do not choose a retailer, then one will be allocated. Show Homes, temporary building supplies and site welfare facilities are eligible to switch between retailers,  although these connections are temporary, they still need a retailer.  For more information on the changes and advice on how to choose a retailer, please visit Open Water

Developer Enquiry

If the site has not reached the planning approval stage or you, or your chosen Self Lay Provider (SLP), just want to know if the proposed development site can be supplied with water, sewerage or both, you can send us a developer enquiry before making a full application.

These are the high level process steps for a developer enquiry
and / or
Find out more about how to make a developer enquiry request

Find out more on how to make a developer enquiry request by reading our detailed step-by step process and things you need to know before you apply, by selecting 'find out more'.

Water

Most new development sites that are having a new road constructed will need a new water main, which we'll then connect to our existing network. The new main will serve the site and each property, or commercial premise, will then be connected to the new main via their own individual service pipe.

Remember, you have a choice on who designs, constructs and installs the new water main and services. STW can do this for you, or you can use an accredited Self Lay Provider (SLP). View more about the self lay option.

These are the high level process steps for a new water main
Find out how to get a new water mains for your site

Find out more on how to get a new water mains by reading our detailed step-by step process and things you need to know before you apply, by selecting 'find out more'.

Sewerage

Most new development sites that are having a new road constructed will require the proposed sewers to be adopted by us. Unlike water we do not carry out sewer construction on new development sites. 

These sewers that will serve the new development will need to be designed by the developer, approved by us and then constructed by the developer. We will enter into a legal agreement with you to adopt these sewers provided they are designed to current industry standards.

These are the high level process steps for the adoption of a new sewer
Find out more about how to get new sewers adopted

Find out more on how to get new sewers adopted by reading our detailed step-by step process and things you need to know before you apply, by selecting 'find out more'.

If you're not sure what our current design standards are learn more about mandatory build standards.

Have You Got More Questions?

We've put together some commonly asked questions. If you've got more questions, then visit our FAQs.

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