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Self lay of water mains and services


South West Water allows Developers to self lay water mains and services.

As an alternative to having new mains and service connections installed by us, developers can arrange for the work to be carried out by qualified contractors. A National Code of Practice is now available and this should be read in conjunction with South West Water's specific Policy and Addendum.  Please click here to view the latest version.

The work must be carried out by a company that is accredited with the Water Industry Registration Scheme (WIRS) which is administered by Lloyds Register.

Developers may wish to request for South West Water to carry out a Pre Development Enquiry for proposed developments to ensure there is adequate capacity within the clean water network. Should you wish for South West Water to carry out the high level evaluation, please click here Pre development capacity enquiry .

Please click here to view the South West Water Self Lay Flow Chart.

For guidance from Ofwat regarding Self Lay, please click here

As an alternative to having new mains and service connections installed by a Self Lay Organisation, developers can arrange for the work to be carried out by South West Water.  Please click here for further information.

As well as completing the self lay application form below you will need to notify us at various stages of the self lay process.

To assist with the installation of water mains and services, Water UK and the Homebuilders Federation (HBF) have agreed best practice principles for the design of on-site water mains constructed specifically for the purpose of new water connections to new build premises.  Please click here for more information.


Self lay application
 
You can apply for a self lay provision using the South West Water Self Lay Application Form. We have provided guidance notes to assist with completing this form.
Self lay notification forms and information
 
When notifying South West Water at various stages of the self-lay process it is important to use the standard South West Water forms which you will find below.
Self lay technical information
 



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