Application to adopt a new sewer

Please complete this form if you would like to make a legal agreement with us to adopt a new sewer, prior to its construction, under Section 104 of the Water Industry Act 1991. A £500 non-refundable deposit is required to cover the initial application costs. All additional costs incurred thereafter will be recharged to the applicant.

Before applying, please review our guidance notes.

The adopted sewer will become part of our sewerage network and maintained at our expense. Charges depend on your specific site requirements. Our guidance notes above explain how we calculate the correct charges.

Section 104 of the Water Industry Act 1991 covers the adoption of new sewers prior to their construction. For sewers to be adopted under this Act, they must be properly designed, constructed and maintained.

You will be responsible for all costs associated with the sewer before it is adopted. When the sewer is adopted and becomes a public sewer it will be maintained by Thames Water at our own 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 request. 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.
  • A drawing showing the location of the sewer to be adopted and proposed drainage layout drawings in PDF format.
  • A drawing showing the site location in PDF format.
  • A document showing the parameters used in the design of the sewers and calculations.
  • Valid credit or debit card to pay the £500 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

$

Tab2

Your site

Site Owner

Site owner #2
Site owner #3

Where the work is taking place

What is the site address?

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.

$$

Tab3

Your work

Section 104

Who should we send the 104 draft agreement to?
Draft agreement #2
Draft agreement #3

About the work

How many properties are served by proposed adoptable works?

$$$

Tab4

Upload your documents

Note :Please upload your files in pdf format. Once the plans have been approved you will need to send us ten coloured copies of the approved plan(s) showing the location and proposed layout of the sewer(s) and pumping station(s) to be adopted. These are required as they will be distributed as part of the section 104 agreement.
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Space remaining: 20MB If your files total more than 20 MB, try compressing them.
This should show the proposed adoptable sewer, its proposed position, size, pipe material and gradient. Include all manhole cover and invert levels, and any unusual design attributes
0.00MB
Space remaining: 20MB If your files total more than 20 MB, try compressing them.
This should show phase sequence and numbering For multi-phase developments only
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Space remaining: 20MB If your files total more than 20 MB, try compressing them.
Section plan showing proposed sewer, pipe size and gradients
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Space remaining: 20MB If your files total more than 20 MB, try compressing them.
Schedule of all adoptable manholes, to include type, size, depth and cover/invert level

$$$$

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.

$$$$$

Tab6

Pay