.svg){kind=small}
.svg){kind=small}
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
Certain types of development are granted planning permission by national legislation without the need to submit a planning application. This is known as 'permitted development'. In order to be eligible for these permitted development rights, each 'class' specified in the legislation has associated limitations and conditions that proposals must comply with.
One such condition on certain classes of permitted development is the need to submit an application to the local planning authority for its 'prior approval; or to determine if it’s 'prior approval' will be required.
This allows the local planning authority to consider the proposals, their likely impacts in regard to certain specific factors (e.g. transport and highways) and how these may be mitigated.
For more information on prior approval, read guidance on prior approval consent types.
Adding a porch canopy is classed as permitted development provided it meets the limits and conditions set out in legislation. Where this is the case, no application for planning permission is required.
Porches must meet the following limits:
- the ground floor area (measured externally)would not exceed three square metres.
- no part would be more than three metres aboveground level (height needs to be measured in the same way as for a house extension).
- no part of the porch would be within two metres of any boundary of the dwellinghouse and the highway.
Read our mini guide for additional information on installing a porch.
Land and buildings are categorised by their type and purpose through a system known as ‘use classes’. A 'Change of use' can be within the same Use Class or from one Use Class to another.
You can find a full list of use classes and change of use scenarios related to planning on the Planning Portal website.
The principal elevation is the most visible or prominent side of a structure, typically facing a street or public area. While often considered the 'front' of the building, it may not always contain the main entrance. There can only be one principal elevation of a house.
Maintenance of fascias and soffit boards such as replacement or painting generally does not require planning permission.
However, if you live in a listed building or designated area (conservation area, national park, area of outstanding natural beauty) you should check with your local planning authority before carrying out any work.
Building regulation approval is not normally required for this work, but you should ensure that the ventilation for the building is not impacted.
Ask another question
Can’t find what you’re looking for?
