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Do I need building regulations approval to add underfloor heating?
Whether you need building regulations approval depends on the type of underfloor heating (UFH) you are installing.
Electric UFH must comply with Part P for electrical safety.This work can be done by a member of the competent persons scheme who can self-certify the work.
Wet UFH must comply with Part L which focuses on the conservation of fuel and power. This will likely require building control approval.
Common Questions
In many circumstances, rules known as ‘permitted development’ rights allow you to extend a house without needing to apply for planning permission, providing specific limitations and conditions are met. If you want to exceed these limits and conditions, then it is likely that an application for householder planning permission will be required.
You can find information about the limits and conditions, prior approval and the building regulations on the Planning Portal by using the links below.
Read about planning permission for extensions
Read about prior approval for larger single storey extensions
Find out about building regulations for an extension
Whether you need building regulations approval depends on the type of underfloor heating (UFH) you are installing.
Electric UFH must comply with Part P for electrical safety.This work can be done by a member of the competent persons scheme who can self-certify the work.
Wet UFH must comply with Part L which focuses on the conservation of fuel and power. This will likely require building control approval.
You don't actually need to own land or property to apply for planning permission for it. This means you can apply for permission before deciding whether or not to buy a piece of land.
The following people must be informed about a planning application relating to land or buildings that they have an interest in:
- The owner or all the part-owner/s (if you are not the full owner)
- Any leaseholders with at least seven years' lease remaining
- Any agricultural tenants.
You can contact your local planning authority for pre-application advice or book an appointment with our Planning Guidance Service.
Approved Documents are official guides that explain how to comply with the building regulations. Published by the government, each document provides practical guidance on meeting the requirements of a specific ‘Part’ of the regulations. They cover a wide range of building work, including plumbing, electrical installations, extensions and ventilation.
The latest versions of the Approved Documents, which support the technical ‘Parts’ of the building regulations, along with Regulation 7, are available on Planning Portal.
Creating a new basement will usually require planning permission, particularly if it affects the external appearance of the property. For example, installing a lightwell to bring natural light into the basement may be subject to stricter design rules if it is visible from the street, especially at the front of the property, compared to those at the rear or side.
Because basement construction involves significant excavation and structural work, permission is often necessary. It’s recommended that you consult your local planning authority early on to understand what is likely to be considered acceptable before submitting a planning application. Building regulations will also apply to a new or conversion of a basement.
