If the location of a public sewer prevents land development or property extension, it may be possible to divert the sewer(s) onsite via an adoption agreement under Section 104 of the Water Industry Act 1991.

However, we will divert strategic sewers, if practical, on a chargeable basis (Section 185). 

Please contact Developer Services to discuss your requirements.

How to apply for a public sewer diversion

You can apply for a public sewer diversion using the following methods.

Online application form

Follow the link below to complete and pay for an application online.

• Application to divert an existing public sewer

Download an application form

Follow the link below to download and fill in an application form.

• Divert Thames Water assets application form (0.10Mb)

Guidance notes

Please refer to our guidance notes before completing your application.

Need help with your application?

Call our helpdesk on 0845 8502 777, and one of our agents will be happy to answer any questions you might have. Our lines are open weekdays from 8am to 5pm.