There are application forms for different types of permissions and consents, as listed below.
These forms (the 1APP) were standardised by the Government in 2008 and are now used by all local planning authorities in England. However, they do not cover Minerals consent or Building Control applications.
The links above will provide you with:
The application form
Notes on how to complete the application form
Guidance on whether that is the correct form to use for your proposal
A checklist of the national and local items that are required to accompany your application.
Please note that TWO copies of the application form and all supporting documentation, plans, etc. are required by West Somerset Council.
More information about the 1 APP can be found on the Planning Portal website.