Sewer Requisitions


Sometimes your home or site has no way of draining to a public sewer due to the land between the site and the sewer being owned by a third party. If the third party won't give you access to the land, then you can also formally request (requisition) a public sewer and/or lateral drain from us.

Our specialist engineers will be able to take you through the whole process, from designing the sewer through to construction.

Interested in making an application? Fill out all the details here and one of our team will be in touch.

If you aren’t sure how to fill out the form or have any questions, take a read of our guidance notes.

How much will it cost?

There are two charges related to this service:

An initial application fee

This is an upfront non-refundable fee of £2,000+VAT, to be paid on application, using a valid credit or debit card. Once the works have been completed, we’ll then deduct the application fee from your commuted sum, so you’ll just have to pay the difference.

A commuted sum OR relevant deficit

Where a requisition scheme is delivered by Welsh Water, the future income from the development is offset against the cost of Welsh Water delivering the scheme.

There are two payment options for this. It can be done through a commuted sum - where the future Welsh Water revenue generated by the scheme is estimated and the developer pays any shortfall on a lump sum, or the relevant deficit - where the developer undertakes to pay the actual difference on an annual basis, which is backed up by the provision of a bond.

For example, if the scheme costs Welsh Water £10,000 to carry out, but guarantees Welsh Water a future revenue of £8,000, then the developer will have to pay the £2,000 difference. VAT is only applicable where the properties are not exempt from VAT.

In the instance where a single property needs a sewer requisition, no income offset would be applicable, and the scheme would be fully rechargeable.

In rare cases, we offer lateral drain requisitions (similar to a sewer requisition but for a single property):

An initial application fee

This is £2,000+VAT to be paid on application, using a valid credit or debit card. Once the works have been completed, we’ll then deduct the application fee from your final quote, so you’ll just have to pay the difference.

Cost of the design and build

This is on a case-by-case basis and is completely rechargeable to the developer.

As a not for profit company, our charges are based on the cost of delivering the service only.

For information on our charges, visit our schedule of charges here.

Don’t forget

  • Even if you are requisitioning a public sewer from us, you will still need to apply for a new sewer connection.