Self lay development

We understand that some Developers prefer to use a Self Lay Organisation (SLO) to install self lay mains and/or service connections.

Please be aware that as of 1st April 2017, if you are a non household customer or applying for a temporary building supply, at the point of connection you will need to have selected a retailer.

To read more and for guidance on selecting a retailer go to

We are fully prepared to assist Developers when using SLO’s as an alternative to us constructing new mains.

Please refer to the Water UK self lay 'Code of Practice' here.