Some small developments, however, such as a small extension to your house or a short term change in how you use your land, may not need a specific planning application. These changes may already be covered by general permission from the General Permitted Development Order 1995 and are called "permitted development". The 1987 Use Classes Order sets out when you can change the use of buildings or land without applying for planning permission. If you are not sure whether you need planning permission, then please talk to our Development Management staff: they will provide free advice.
Alternatively, please fill in and complete our pre-application enquiry e-form; we aim to respond within 10 working days and will give an informal opinion as to whether planning permission is required.
Pre-application enquiry e-form
The Statutory Instrument regarding Permitted Development (development that can be carried out without the need for planning permission) relevant to householders, may be viewed on the Office of Public Sector Information website:
An Interactive House Guide is also available to view on the Planning Portal website:
There are also free booklets to help you understand how the planning system works, for example:
- Planning Permission - A Guide for Business
- Outdoor Advertisements and Signs
- Planning Charter Standards
Alternatively general advice regarding the planning application process and guidance on whether permission may be required is provided on the Planning Portal.
Downloads/Links

Planning Portal - apply, appeal or find guidance online.
Submitting an application electronically? Please read our file size guidelines first.
Contacts
Planning Division
Mid Sussex District Council
Oaklands, Oaklands Road
Haywards Heath
RH16 1SS
Fax: 01444 477461
planninginfo@midsussex.gov.uk
