Application to adopt an existing sewer

Please complete this form if you would like to make a legal agreement with us to adopt an existing sewer under Section 102 of the Water Industry Act 1991. A £1,000 non-refundable deposit is required to cover the initial application costs. All additional costs incurred thereafter will be recharged to the applicant.

Before applying for a sewer adoption, please review our guidance notes.

Section 102 of the Water Industry Act 1991 covers the adoption of existing private sewers. For sewers to be adopted under this Act they must be properly designed, constructed and maintained.

All costs prior to adoption are at your own expense. However once adopted the sewers become public sewers and will be maintained by Thames Water at our expense.

For details on how we’ll use the information you provide in your application, click here.


Any personal information that you provide will only be used to process this application. We use a third party, WorldPay, to collect all payment details and process payments made through our website.

When submitting this form, you will be redirected to WorldPay's secure server where you will be presented with a series of payment pages, enabling you to choose your payment method and enter your payment details.

WorldPay will record your payment details against the details submitted on this form, to produce a transaction.

The transaction details will be forwarded to the card issuer for authentication. The issuer will then return an authorised or declined response to WorldPay and a payment response page is then displayed to you.

If the transaction is successful, WorldPay will also send you a confirmation email, confirming the transaction details.

WorldPay accept card payments from MasterCard, Debit MasterCard, Visa Credit, Visa Debit, Visa Electron, Maestro, JCB, and Solo. 

Payment or refund related enquiries

If you would like to contact us about an online payment or refund, please call us on 0800 009 3921, our lines are open Monday to Friday from 8am to 5pm. You can also email us  developer.services@thameswater.co.uk.

To complete this form, you will need the following:

  • The applicant's full name, contact number and email address.
  • The location of the sewer to be adopted.
  • Details of any land owner, other than the applicant, who is entitled to use the sewer to be adopted.
  • Details of all properties connected to the sewer to be adopted.
  • A drawing showing the location of the sewer to be adopted and 'as constructed' drawings in PDF format.
  • If available, the parameters used in the design of the sewers and calculations.
  • Valid credit or debit card to pay the £1,000 deposit.

Tab1

About you

About the person applying

This is the person we'll contact about the application and will receive all correspondence. This can be the property owner or someone acting on their behalf.

'An individual' is A Homeowner and 'A Business' is An agent/architect/builder etc acting on behalf of the Homeowner.

Applicant contact details

We'll use these details to get in touch with you about your application

Applicant address details

We'll use these details to get in touch with you about your application

Nominated contact

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Tab2

Your site

Landowners

Landowner #2
Landowner #3

Location of sewer to be adopted

About the site

This is a 12 figure grid reference highlighting the centre point of the site which will help us locate the site if an address is difficult to determine.

Invoices

This person will also receive the quote.

'An individual is 'A Homeowner and 'A Business' is 'An agent/architect/builder etc acting on behalf of the Homeowner.

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Tab3

Your work

About the work

How many properties are served by proposed adoptable works?

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Tab4

Upload files

Upload your documents

Your file sizes cannot total more than 20Mb
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Space remaining: 20MB If your files total more than 20 MB, try compressing them.
This is a general layout plan, showing all sewers that are to be adopted coloured in red. All non adoptable details i.e. roads, buildings should be coloured in black
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Space remaining: 20MB If your files total more than 20 MB, try compressing them.
This is a detailed drainage plan showing the proposed long section details including size, pipe material and gradient, as well as all manhole cover and invert levels.
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Space remaining: 20MB If your files total more than 20 MB, try compressing them.
Any existing CCTV surveys of the adoptable sewer.
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Space remaining: 20MB If your files total more than 20 MB, try compressing them.

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Tab5

Review
Please review and confirm your details. You won't be able to submit the form until all mandatory fields have been completed

About you

The site

The work

Upload file

Declaration

One or more of the fields you have entered is not in the expected format. Please amend any fields highlighted in red.

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Tab6

Pay