Guidance is available from the planning portal to give you an indication of whether planning permission is required for your proposal.
Additionally guidance is also available via the government website explaining:
- when you need planning permission
- when you don’t need planning permission
- the process after you apply
- the appeals process
Lawful development certificates
If you would prefer a formal determination from the planning department as to whether or not planning permission is required for your proposal, you can apply for a Lawful development certificate for a proposed use or development.
Find out the cost for lawful development certificates.
If work has already been carried out, or a use has commenced without planning permission you may be able to obtain a lawful development certificate for an existing use or operation or an activity in breach of a planning condition. Further guidance is available through the Planning portal on how to apply for a lawful development certificate for an existing use or development.
Changes to ‘permitted development’ rights
The Town and Country Planning (General Permitted Development) (England) Order 2015 allows the construction of single storey rear extensions on domestic dwellings that project up to 8m on detached properties and 6m on other dwellings subject to certain restrictions and requirements. This allowance does not apply to flats or to properties within conservation areas, Areas of Outstanding Natural Beauty (AONB) or Sites of Specific Scientific Interest (SSSI). The allowance is subject to a prior approval procedure and the requirements of this are set out under condition A.4 of Part 1 of Schedule 2 of the Town and Country Planning (General Permitted Development)(England) Order 2015.
Find out the cost of changes to permitted development rights.
Interactive house on the planning portal
Explore the interactive house on the planning portal for guidance on many common householder projects, including home microgeneration in England.