Extension planning of a building may not require permission at all times. However, you need to check the rules in order to confirm the limitations. As the entire process requires you to visit the local authority and submit application, you may think it to be a hard task, but this is not at all right. It is best to have a talk with the experts regarding Berkshire planning permission without wasting time.
To discover if you need planning permission, contact your local authority via the government's planning portal website. You should not assume that just because the changes cannot be seen from outside the building (such as an extension or conservatory) that you do not need consent. Indeed, work such as cellar and loft conversions may also need authorisation.
In the scenario that you are refused planning permission, you then have 12 months to modify your plans and make another application. Should this fail, you may wish to appeal. This takes the issue out of the Local Planning Authority's hands and places the decision with the Planning Inspectorate. This often takes several months, and is usually considered a last resort.
If the house you are staying has a specified area, you might not be allowed to extend your property. Depending on where you stay, there might be different rules and hence require specific consultation. Talk with local Berkshire for planning permission and to know more about the regulations. You might have to look into minor things as no major changes is expected for house extension.