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Larger scale developments

You can learn more about the process of developing a large scale residential, commercial or industrial site. We're here to help at every stage of your development.

This includes:

  • Planning your development 
  • Clean and wastewater services
  • Using self-lay providers
  • Asking for a NAV
Two Thames Water engineers stood by a Thames Water van.

Planning

Learn more about the planning phase of your development, including what you need to do and when.

Clean water

Apply and pay for clean water services, including new mains or services connections and water for building work.

Wastewater

Apply and pay for our wastewater services, including adopting an existing or new sewer and building over a sewer.

Self-lay providers

Independent self-lay providers could offer cost-effective terms, and may be able to install multiple units.

Using NAVs

You can as a 'New Appointment and Variation' (NAV) to serve your development in a defined area, known as an inset.