You will need to submit a sewage and utilities assessment as part of your planning application which shows how the site will connect to local service infrastructure for water, sewage, and electricity.
This assessment is required for all applications proposing developments in excess of 100 dwellings or 10,000m2 new floor space (or an equivalent combination).
Foul sewage
A foul sewage assessment will need to show:
- information about the site
- the site’s suitability to store foul sewage
- the site’s suitability to transport foul sewage
- the site’s suitability for treating foul sewage
Information about the existing drainage system must be given when you want to connect to it. Surface water must not be connected to a foul sewer.
When trade waste or foul sewage effluent will not be discharged into a public sewer, the assessment must show:
- why you can’t connect to an existing system
- storage methods
- treatment methods
- disposal methods
Check to see if building regulations approval is needed for a new or change of drainage system. Scaled plans for new, replaced, or changed foul drainage systems must include:
- a site location
- cross sections and elevations
- specifications
When a connection crosses land that is not owned by an applicant (except public highway), notice may need to be served on the land owner.