If you are a NAV considering potential sites within South West Water’s appointed area of supply, in order to make your application to Ofwat for the new appointment, you’ll need some information from us, as the incumbent water and/or sewerage company.

If you’re looking to make a bulk connection with our network(s), we can also help you set up the bulk agreement(s), arrange for any site-work and set you up as our customer.

The links below provide further information.

If you have any questions Please click here to contact the team

Information on how to apply for a new appointment or variation is on Ofwat's website. 

We understand you may be working with a number of different Wholesalers and we want to make it easy for you to deal with us.

We have a dedicated contact point to help you and your teams to work effectively with the South West Water Team.

Please click here to contact the team

Developers may be able to choose a NAV rather than South West to supply services for a particular site or premises. The NAV would then become the monopoly provider for that particular site.

To have a development connected to a NAV, you will have to contact a NAV and discuss the arrangements. The NAV must then apply to Ofwat for an appointment or a variation of their appointment in order to serve the site.

Ofwat provides further information on its website: https://www.ofwat.gov.uk/regulated-companies/markets/nav-market/choosing-a-supplier/

As you begin to plan your development, our dedicated NAV team will work with you to agree the points of connection to the water and wastewater network. 

You can apply to South West Water for a point of connection (PoC) using our dedicated NAV PoC Application:

Please click here download the application form.

We will provide the PoC information within 28 days on receipt of the completed application and payment.  The offer will remain open for acceptance for three months.  Should you wish to proceed with the offer after this timescale, you must re-apply unless you have informed us in writing of your new timescale.

You will also need to gain confirmation regarding the unserved status of the site. An unserved site is a site that does not include any existing water and/or wastewater connections to our network. You can request a site status response by completing the above application form either alongside the point of connection enquiry or use this form independently for site served information only.

We will provide the site served information within 21 days of receipt of the application.

If you are a NAV applicant and require a Point of Connection or Site Served information, please visit our dedicated NAV webpage: 

https://www.southwestwater.co.uk/developer-services/water-services-and-connections/using-a-nav/

Please click here for more information on our Developer Services Charging Arrangements.

Depending on the type of service you will provide we will need to set up bulk supply and / or discharge agreements with you.

Copies of our draft agreements, Special Conditions and Special Condition questionnaire can be found on the links below. The Agreements are industry standard documents which came in to effect on 1 July 2020, while the draft Special conditions and questionnaire are South West Water specific.

To enable us to process your application smoothly please ensure that you complete and return the relevant questionnaire with your request for the supply and/or discharge agreement.

Please contact us if you have any questions in the meantime.

Clean Water
Bulk supply agreement
Special Conditions
Bulk supply questionnaire
Non-Household questionnaire
Water Quality Protocol

Waste Water
Bulk discharge agreement
Special Conditions
Bulk discharge questionnaire 
Non-Household questionnaire

General
NAV meter reading and information supply agreement
Contact Protocol

For more information about our Wholesale charges, please click here.

Please click here for more information about 2023/24 bulk supply charges for NAVs.

Please click here for more information about 2022/23 bulk supply charges for NAVs.

Please click here for more information about 2021/22 bulk supply charges for NAVs.

Please click here for more information about 2020/21 bulk supply charges for NAVs.

Please click here for more information about 2019/20 bulk supply charges for NAVs.

Please complete the notification forms to move forward with the construction of your bulk supply (clean water) or bulk discharge (waste water).

BULK SUPPLY (CLEAN WATER):

• BS1 Notification of Commencement of Mainlaying
• BS2 Notification of Proposed Routine Mains Connection
• BS3 Notification of Completed or Aborted Routine Mains Connection

 Note: if you are using a Self Lay Provider (SLP) to carry out the off-site construction of water mains, you will also need to ensure the SLP has the relevant permissions and agreements in place.  Please refer to our Self Lay webpage for further information:

https://www.southwestwater.co.uk/developer-services/water-services-and-connections/self-lay/

BULK DISCHARGE (WASTE WATER):

• BD1 Notification of Commencement of construction of offsite sewers

Note:  If you are to construct the sewers, please submit your application to communicate to the public sewer using the Section 106 process:

https://www.southwestwater.co.uk/developer-services/sewer-services-and-connections/new-sewer-connection/