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When planning to extend your property or build a conservatory, one of the most important things homeowners will need to consider is if their proposed building will have an effect on underground sewer pipes.
You should carefully assess the proposed site for your conservatory, as building over or near a drain can cause significant damage to the underground pipes and your proposed building.
The extension could also make it difficult for your local water authority to gain access to and maintain their sewers.
In this article, we explain everything you need to know about moving drains for an extension in the UK, including costs, legal requirements, and other essential information.
Prior to starting any work on moving drains, homeowners should check whether they require planning permission or approval from building regulations and their local water authority.
In the UK, all drainage work must comply with Building Regulations Part H: Drainage and Waste Disposal and planning permissions. Additionally, if your property lies within a conservation area, you may be required to seek further permissions.
According to section H4, if a proposed building will be constructed within three metres of a public sewer, private drain, or private sewer, the following must be met:
Failure to comply with the relevant regulations can result in hefty fines, and the owner may even be required to remove the extension.
We highly recommend getting in touch with a professional drainage specialist, such as Coastal Drains, before building over any drains on your property to ensure you are fully compliant with current regulations.
If your sewer is private and linked to a single property, therefore not connected to a public system, it will be exempt from requiring approval for being moved. In these cases, the sewer would need to be located within the boundary of a single property and maintained privately as part of a property management scheme.
If your planned work is within 3 metres of a public sewer or lateral drain, you must also gain approval from your local authority. Even if this is not the case, we recommend checking with the relevant authorities before starting work just in case.
When considering moving drains for a conservatory in the UK, homeowners have a number of options available, including:
On average, homeowners can expect to pay upwards of £4,500 to move a drain for a conservatory. This cost typically includes materials and labour, however, more complex jobs can cost up to £6,000.
Permission from the local water authority to move the drain will also increase the costs by at least £750.
An additional allowance of at least £1,000 should be set aside for moving manholes, plus any refining required after the job has been completed, such as returning and landscaping due to the potentially messy nature of the job.
The time it takes to move a drain will depend on how complex the job is, and whether or not any complications appear during the process.
In some cases, it can take months for a local water authority to grant permission for the moving of drains, so it is essential that you factor this into your plan as it could put your project on hold.
Moving drains for a conservatory can be an extremely complex process. From careful planning to compliance with legal requirements, it can cause stress and confusion throughout.
Homeowners planning to build a conservatory should seek professional advice when it comes to moving the drains on their property. Coastal Drains has years of experience providing top-quality advice to help them obtain the necessary permits and to ensure their entire project adheres to all relevant legislation.