Pre-planning enquiries
We can carry out capacity studies for proposed developments, to find out the potential impact on our network.

Our Pre-Planning Enquiry service will provide information on the potential impact the proposed development on our existing sewerage network and its ancillary assets. 


It will also identify or confirm the practicality of proposed points of connection, and highlight if network reinforcement will be required to serve the development.

Supporting guidance

Before submitting your request, please read the Pre-Planning Enquiry guidance, which explains the procedure in more detail.


Please remember to include supporting layout and location plans to your Pre-Planning Enquiry Application form.


Once you've completed your application, please return it with any accompanying plans or schedules to our Development Control email address:

When should I make a Pre-Planning enquiry?

Pre-Planning Enquiries are only required for developments of 

3 or more properties (or the equivalent in terms of commercial and industrial developments).


If your development is smaller please go directly to the Adoption of a New Sewer and/or New Water Supplies sections on our website.

How much will it cost?

The fee depends on whether your enquiry relates to a water supply, sewerage or both.


For water supply only, the fee increases with the number of houses.


For sewerage only, or water and sewerage, the fee is fixed.

How long will it take to get a response?

We will confirm we have received your application (completed form, fee and scaled location plan) within five working days.


Your enquiry will have a unique reference number.


A response to your enquiry will be given as follows:


Water supply enquiry

We will respond to you within 21 days of receiving your completed application


Sewerage enquiry

We will respond to you within 21 days of receiving your completed application


Combined water supply and sewerage enquiry

We will respond to you within 21 days, though you may receive separate responses for sewerage and water


Further investigations

If more detailed investigations are required before we can give you a full response, we will notify you of this and provide an estimate of when a response to the enquiry will be given.



We will only process your enquiry if the form is completed and fee and site plan included. Incomplete enquiries may need to be returned to you for more information, resulting in a delay to the response.

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