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What are the rules for installing a septic tank in the garden?
Installing a new septic tank in your garden will often require both planning permission, building regulations approval and a septic tank permit.
The planning permission will ensure that the tank is installed in an appropriate location with information being provided to understand any potential implications for the surrounding environment and water.
Building regulations is required for the installation of a septic tank to ensure it meets the drainage and waste disposal standards set out in Approved Document H.
Where possible it is recommended that you connect to an existing public sewer instead of installing a septic tank, this reduces waste entering the waterways.
For more information visit our drains common project or contact your local planning authority.
Common Questions
Many homeowners choose to replace their traditional polycarbonate conservatory roof with a solid tiled roof for better thermal efficiency.
If the change significantly alters the structure or appearance of the roof, then planning permission may be required. Most alterations to roofs are considered permitted development, providing they meet the limits set out in legislation.
A new roof must comply with building regulations to ensure it is structurally safe, energy efficient and properly ventilated.
Planning permission will not be require to add an en-suite provided it is within the existing building and not part of a wider project such as an extension.
Building regulations will have to be considered when adding an en-suite as it impacts drainage, ventilation and electrics. It is recommended that you have the work completed by a member of the competent person scheme.
Whether a lean-to requires planning permission will depend on what the lean-to is used for, it may be an extension, pergola, carport, conservatory or gazebo.
In some cases a building a lean-to will be classified as permitted development, meaning an application for planning permission is not required provided specified limits and conditions are met. If these are exceeded, then you must apply for planning permission.
Permitted development rules vary based on the type of work you are completing, visit our Mini Guides for details on the specific rules.
If you live in a listed building, you will need listed building consent for any significant changes.
Increasing the size of a window will often fall under permitted development rights, meaning an application for planning permission is not required to make the change, provided limits and conditions are met.
Any new window must be of similar appearance to the original which you are replacing.
Permitted development rights do not apply to flats. To increase the size of a window in a flat or maisonette you will require planning permission.
If you live in a listed building, you will require listed building consent for any major changes.
Where the work has as significant impact on the external appearance of the house, especially on the principal elevation, planning permission may be required.
Building control approval will likely be required where the change impacts the structure of a building, this primarily occurs when an opening Is widened. When altering walls you may want to consult a structural engineer.
Building control will also consider energy efficiency, glazing, ventilation and fire safety.
Climbing frames are classed as ‘outbuildings’ meaning they are classed as permitted development, not requiring an application provided they meet the limits set out in legislation. One of these limits is that they cannot be in front of the house.
The key restrictions for a climbing frame will be the height; how close it can be to the properties boundaries and where it can be located.
A full list of limits and conditions can be found on our outbuildings common projects.
If the climbing frame exceeds any of the limits set out in legislation an application for planning permission is required.
