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Last edited 07 Nov 2019
Drains within the boundary of a building are the responsibility of the owner (unless the drains of other properties run through their property), including liability for any maintenance and repairs. Insurance can be taken out to cover work on private drains.
The environmental health department of a local authority can order a property owner to carry out improvement or replacement works in certain circumstances, such as if the drain is in poor condition and is causing a blockage. The local authority may undertake the works and charge the property owner for them.
On 6 September 2010 the government announced that most lateral drains connected to the public sewer network would be transferred to the ownership of the regulated sewerage companies in England and Wales. Lateral drains that were connected to the public sewer network before 1 July 2011 were transferred on 1 October 2011.
NB the term 'drain' may also be used to refer to an opening that allows surface water or waste water to enter an underground network of pipes (typically with a metal grill preventing leaves and other debris from entering the pipes) or to the underground network of pipes itself.
Sustainable urban drainage systems (SUDS) are systems designed to efficiently manage the drainage of surface water, providing an alternative to, or addition to, traditional drainage systems where surface water is drained directly and quickly into underground, piped drainage. For more information see: Sustainable urban drainage systems
 Related articles on Designing Buildings Wiki
- Groundwater control in urban areas.
- Private sewer.
- Public sewer.
- Rain gutter.
- Rainwater downpipe.
- Safe working in drains and sewers.
- Septic tank.
- Sewer construction.
- Sustainable urban drainage systems SUDS.
- Waste water.
- Water transfers and interconnections.
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